Weather StoryAlmanac, microseasons, and the day's weather story.

Pittsburgh, Pennsylvania Weather

Night falls a minute earlier. Day 43 of summer. Read this microseason across nine climate regions →

Pittsburgh weather forecast — hour by hour, 7-day outlook, NOAA radar

Pittsburgh, PA
Sunday, August 2 at 10:58 AM
73
°
Overcast
Feels like
77°
Humidity
90%
Wind
9 mph
Sunrise
2:18 AM
Sunset
4:33 PM
Pittsburgh, PA
Hour by hour · 24h
24-Hour ForecastPittsburgh, PA: 24-hour forecast. Temperatures range from 68 to 81 degrees Fahrenheit with a 57% chance of precipitation at 12 PM.
L 68°H 81°
Pittsburgh, PA
7-day forecast
  1. Today
    Aug 2
    Heavy Rain
    65%
    0.91″
    81°69°—
  2. Monday
    Aug 3
    Light Drizzle
    11%
    —
    78°68°-3°
  3. Tuesday
    Aug 4
    Overcast
    11%
    —
    86°62°+8°
  4. Wednesday
    Aug 5
    Drizzle
    51%
    —
    86°67°0°
  5. Thursday
    Aug 6
    Thunderstorm
    39%
    —
    88°68°+2°
  6. Friday
    Aug 7
    Thunderstorm
    44%
    —
    86°70°-2°
  7. Saturday
    Aug 8
    Drizzle
    40%
    —
    85°68°-1°
Pittsburgh, PA
Next 24 hours · Mild now
66°75°84°12p6p12a6anow 72°high 81°low 68°PRECIP %
Pittsburgh, PA
Anemometer · 24h winds · from true
NESW
From · True
SE
142° · veering 22°
Direction
SE
142°
Sustained
9
mph
Gust
20
mph
Peak 24h
26
avg 6 mph
Beaufort · 3 · GENTLE BRZ
0
CALM
<1
1
LIGHT AIR
1–3
2
LIGHT BRZ
4–7
3
GENTLE BRZ
8–12
4
MOD BRZ
13–18
5
FRESH BRZ
19–24
6
STRONG BRZ
25–31
7
NEAR GALE
32–38
24h · sust vs gust · mph
avg 6 mph · pk 26 mph @ 10:00a
0102030MPHB1B2B3B4B5B6-21h-18h-15h-12h-9h-6h-3h-24hNOWpk 266SUSTGUST
−24h−18h−12h−6hnow
Light breeze veering 22° from the se.
Pittsburgh, PA
Barometer · 24h pressure · mb
STORMRAINCHANGEFAIRDRY9901000101010201030
Pressure · mb
974.5
+1.0 mb in 3h · rising · 28.78 inHg
Now
974.5
mb
3h
+1.0
mb
12h
-0.2
mb
24h
-2.3
mb
Regime · STORM
STORM
RAIN
CHANGE
FAIR
DRY
24h · Pressure · mb
range 973–977
965970975980985-21h-18h-15h-12h-9h-6h-3h-24hNOW977.1972.6974.4
The low is filling — pressure climbing out of storm territory.
Pittsburgh, PA
Air quality
53
AQI
Moderate
↓-6 in 6h

AQI 53 (Moderate), driven by PM2.5. AQI down 6 over the last 6 hours (gradual decline). PM scrubbed by 5 hours of recent rain — PM2.5 down to 8.0 µg/m³, PM10 to 8.4 µg/m³.

OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion.

PM 2.5DRIVERGood
8.0μg/m³
PM 10Good
8μg/m³
NO₂Good
4μg/m³
OzoneModerate
73μg/m³
UV IndexLow
0.9

What's driving it

Ozone × UV × Sky

Ozone at AQI 34. Overcast through the UV peak window (cloud cover ~100%) — afternoon ozone should stay flat.

Present
AQI 34
UV peak
1.3 at 1 PM
Sky at peak
overcast
Projected peak
AQI 4

PM × Wind × Precip

PM scrubbed by 5 hours of recent rain — PM2.5 down to 8.0 µg/m³, PM10 to 8.4 µg/m³.

PM2.5/PM10
0.95
Wind
light
Recent rain
5h in last 6h
Pattern
washed out

Trends

Seven days of AQI and PM2.5.

Hourly air-quality data from the Copernicus Atmosphere Monitoring Service, charted across the past and next several days. Dashed lines mark the AQI breakpoints at 50 (Good → Moderate) and 100 (Moderate → Unhealthy for Sensitive Groups).

7-DAY AQI TREND50100SUNMONTUEWEDTHUFRISATSUN7-DAY PM2.5 TREND · μg/m³590
Pittsburgh, PA
Sky cover · visibility · 24h
Cloud cover
100%
OVERCAST
100%0%−24h−18h−12h−6hnow
Visibility
28.5mi
UNLIMITED
70 mi0 mi−24h−18h−12h−6hnow
Earth · GOES-19 ABI
Full Disk · Visible · GeoColor
GOES-19 full disk Visible · GeoColor
True-color daytime, blue/IR sandwich at night
14:58 UTC · Pittsburgh, PA · NOAA NESDIS / STAR · up to 10848 px
Continental US · GOES-19 ABI
CONUS Sector · Visible · GeoColor
GOES-19 CONUS Visible · GeoColor
Daytime true-color, blue-light/IR sandwich at night
14:58 UTC · Pittsburgh, PA · NOAA NESDIS / STAR · 5-min cadence · up to 10000 px
Pittsburgh, PA
Satellite · infrared · animated
Pittsburgh, PA
Loading IR frames…
IR · cloud-top temp© RainViewer · Carto
Pittsburgh, PA
Almanac · Sunday, August 2
Red sky at night, sailor's delight.
Civil dawn
5:48 AM
Sunrise
2:18 AM
Daylight
14h 15m
Sunset
4:33 PM
Civil dusk
9:05 PM
Planting note
Sow fall peas. Start kale and collard seedlings for fall.
Pittsburgh, PA
The moon
Waning Gibbous
84% illuminated
Moonrise
10:02 PM
Moonset
10:23 AM
In sign
♓︎ Pisces
Pittsburgh, PA
Microseason
Aug 1–5

Night falls a minute earlier

celestial
Jan 159% of the yearDec 31

Read this microseason across nine climate regions →

Pittsburgh at a glance

  • Today vs. normal: 11°F above the seasonal normal for this latitude
  • Last frost: April 19 (climatological average for this latitude)
  • Microseason: Aug 1–5
  • Planting window: Sow fall peas. Start kale and collard seedlings for fall.

ZIP codes: 15201, 15202, 15203, 15204, 15205, 15206, 15207, 15208 +35 more

16-Day Forecast — Pittsburgh

  1. Sun81°69°65%
  2. Mon78°68°9%
  3. Tue86°62°2%
  4. Wed86°67°42%
  5. Thu88°68°53%
  6. Fri86°70°61%
  7. Sat85°68°44%
  8. Sun93°69°40%
  9. Mon93°70°37%
  10. Tue85°69°37%
  11. Wed88°64°26%
  12. Thu91°71°44%
  13. Fri93°73°43%
  14. Sat95°72°32%
  15. Sun89°72°26%
  16. Mon90°67°23%

Forecast data from Open-Meteo (CC BY 4.0).

Live wind & temperature near Pittsburgh

Right now in the garden

Peak growing season

As of August 2, the growing season is at its peak — frost is months away. Continue succession-planting beans and summer squash. Start fall brassicas (broccoli, cabbage, kale) from seed indoors for transplanting in late summer.

SPC Convective Outlook

Storm Prediction Center — Pittsburgh

SPC has placed Pittsburgh in the Marginal Risk category for severe thunderstorms today.

  • TODAYMRGLMarginal Risk
  • TOMORROWTSTMGeneral Thunderstorms
  • DAY 3TSTMGeneral Thunderstorms

Isolated severe storms possible. Limited threat for hail or damaging wind.

Source: NOAA / NWS Storm Prediction Center categorical convective outlook. Outlooks are re-issued multiple times per day; this page reflects the most recent SPC polygons covering the city’s coordinates.

Sun & seasons in Pittsburgh

Pittsburgh sits in Allegheny County, where the year’s longest day runs 15h 4m of daylight and its shortest just 9h 17m — a swing of +5h 47m between the June and December solstices. Clocks spring forward on Sunday, March 8, 2026 and fall back on Sunday, November 1, 2026.

Philadelphia, the state’s largest city, lies about 257 miles to the E. The nearest town Pittsburgh tracks is Green Tree, roughly 4 miles to the WSW.

Air quality in Pittsburgh’s county has trended cleaner since 2020; its cleanest year on record was 2024 (median AQI 52). See the full air-quality history for Pittsburgh.

January 1–5: The year turns in silence.January 6–10: Ice thickens on still water.January 11–15: Shortest shadows lengthen.January 16–20: Pheasants begin to call.January 21–25: Springs begin to thaw.January 26–31: Chickadees announce dawn.February 1–5: East wind softens the frost.February 6–10: Sap begins to rise.February 11–15: First snowdrops appear.February 16–20: Red-winged blackbirds return.February 21–25: Rain begins to replace snow.February 26–28: Skunk cabbage pushes through ice.March 1–5: Ice withdraws from the reservoir.March 6–10: Crocuses open to weak sun.March 11–15: Peepers call from the marsh.March 16–20: Woodcocks spiral at dusk.March 21–25: Equinox — light overtakes dark.March 26–31: Forsythia opens along the fences.April 1–5: Cherry blossoms drift like snow.April 6–10: Warblers appear in the understory.April 11–15: Magnolias bloom and fall in a day.April 16–20: Dogwoods float above the forest.April 21–25: Lilacs perfume the evening.April 26–30: Last frost releases the garden.May 1–5: Warblers flood the Ramble.May 6–10: Tulip poplars light their candles.May 11–15: Shad run up the rivers.May 16–20: Roses open along the stoops.May 21–25: Firefly scouts appear at dusk.May 26–31: Strawberries ripen in the sun.June 1–5: Fireflies rise from the lawn.June 6–10: Elderflowers open in hedgerows.June 11–15: Solstice approaches — longest light.June 16–20: Honeysuckle sweetens the night.June 21–25: Solstice — the sun stands still.June 26–30: Lightning bugs drift through oaks.July 1–5: Cicadas claim the afternoon.July 6–10: Queen Anne's lace lines the roads.July 11–15: Thunder builds each afternoon.July 16–20: Corn reaches for the tassels.July 21–25: Dog days settle in the haze.July 26–31: Katydids begin their chorus.August 1–5: Night falls a minute earlier.August 6–10: Sunflowers face the morning.August 11–15: Goldenrod begins to bloom.August 16–20: Crickets pulse through warm nights.August 21–25: First cool morning surprises.August 26–31: Monarchs stage for flight.September 1–5: School buses reappear.September 6–10: Asters purple the roadsides.September 11–15: Hawk migration over the Hudson.September 16–20: Equinox — dark overtakes light.September 21–25: Apples hang heavy on the branch.September 26–30: Geese begin to chevron south.October 1–5: Witch hazel blooms as others fade.October 6–10: Maples begin to blaze.October 11–15: Frost paints the garden black.October 16–20: Oaks turn bronze and russet.October 21–25: Leaves rattle down the gutters.October 26–31: Clocks fall back — dusk at five.November 1–5: Ginkgos drop overnight.November 6–10: Last leaves cling stubbornly.November 11–15: Juncos arrive from the north.November 16–20: Bare branches reveal the sky.November 21–25: First flurries dust the rooftops.November 26–30: Woodsmoke curls through the block.December 1–5: Darkness settles before dinner.December 6–10: Holly and winterberry persist.December 11–15: Shortest day approaches.December 16–20: Ice begins to form at the edges.December 21–25: Solstice — the sun begins return.December 26–31: The year turns in silence.🌱February 14 — First skunk-cabbage spathes thaw their way up☀️March 20 — Spring equinox — day and night balance🌸April 5 — Cherry blossoms peak in the parks🐦May 10 — Warbler migration peaks along the coast✨May 25 — First fireflies scout the meadows at dusk🌞June 21 — Summer solstice — longest day🦗July 25 — Peak cicada chorus in the afternoons🌊August 18 — Warmest sea-surface temperatures of the year🍂September 22 — Autumn equinox — the slow turn❄️October 25 — First widespread frost in the suburbs🍁November 10 — Peak leaf color across the Hudson Valley🌙December 21 — Winter solstice — longest night

Microseason · August 1–5

Night falls a minute earlier

Sunset retreats perceptibly — daylight shortening speeds up.

Day 214 of 365 · Wedge 43 of 72

The solar year drawn as a wheel of 72 five-day windows. Each wedge is one microseason; the four colored arcs mark winter, spring, summer, and autumn; the small icons sit at notable phenological events. The crimson pointer creeps clockwise as the year turns.

Planting calendar

MonthPlantHarvest
January——
February——
March——
Aprillettuce, peas, spinach, radishes—
Maylettuce, peas, spinach, radishes, tomatoes, peppers, beans, squashlettuce, peas, radishes
Junetomatoes, peppers, beans, squashlettuce, peas, radishes
Julytomatoes, peppers, beans, squashtomatoes, beans, summer squash
August—tomatoes, beans, summer squash
Septemberfall brassicas, garlic (overwinter), carrotstomatoes, beans, summer squash
Octoberfall brassicas, garlic (overwinter), carrotswinter squash, tomatoes (last)
November——
December——

A year in weather

In Pittsburgh, July runs warmest near 73°F and January coldest around 28°F, while May is the wettest month (5.4 inches) and February the driest (3.1 inches).

MonthMean tempPrecipRainy days
January28°3.4″20
February31°3.1″18
March39°4.1″19
April51°4.3″20
May59°5.4″19
June68°4.7″19
July73°4.4″18
August73°4.0″18
September66°3.4″16
October55°3.2″15
November41°3.5″18
December32°3.9″20

Regional context

Pittsburgh swings from 28°F in January to 73°F in July (46°F) per NOAA NCEI 1991-2020 normals; precipitation in Pittsburgh runs about 47.4 inches on roughly 221 measurable days.

Pittsburgh's precipitation spreads evenly: May peaks at 5.4 inches on 19.3 wet days, while February holds 3.1 inches over 18.2 — no month dominates Pittsburgh's rain calendar. It is a balanced pattern Pittsburgh shares with places like Mount Oliver, PA, Millvale, PA and Homestead, PA.

Once Pittsburgh passes mid-April, overnight freezes fade and kale, peas, spinach, and parsnips can be sown. Tomatoes and peppers do best set out two weeks later in Pittsburgh, once nights clear the mid-40s°F. By mid-November, frost is back in Pittsburgh — protect or harvest anything tender. A creek-bottom lot in Pittsburgh can lag Pittsburgh's last frost 7-10 days behind a south slope.

Similar climates: Mount Oliver, PA, Millvale, PA, Homestead, PA, West Homestead, PA, Etna, PA.

Naturalist notes

Late May brings the arrival of ruby-throated hummingbirds to Pittsburgh gardens, their metallic calls announcing the transition to summer feeding season.

By mid-June, common milkweed releases its fragrant pink flower clusters across local meadows and vacant lots.

Frequently asked

When does it freeze in Pittsburgh?
Pittsburgh's last spring frost lands near mid-April, and in Pittsburgh the first fall frost follows around mid-November.
What is the rainy season in Pittsburgh?
May is the wettest month in Pittsburgh, about 5.4 inches on average; the year totals roughly 47 inches.
What is the warmest month in Pittsburgh?
Pittsburgh peaks in July, when the mean runs near 73°F.
What is the coldest month in Pittsburgh?
January is Pittsburgh's coldest month, averaging about 28°F.
When can I start a vegetable garden in Pittsburgh?
Hardy spring crops go in near mid-April in Pittsburgh; tender peppers and squash wait 10–14 days.
How many rainy days does Pittsburgh get?
Pittsburgh records around 221 days of measurable precipitation annually.
What hardiness zone is Pittsburgh?
With January around 28°F, Pittsburgh's zone reflects that minimum — the USDA ZIP map confirms Pittsburgh's band.
What is the 10-day forecast for Pittsburgh?
Pittsburgh's extended outlook — daily high and low temperatures and precipitation chances for each upcoming day — is in the daily forecast above.
Will it rain this week in Pittsburgh?
See this week's day-by-day rain chances for Pittsburgh in the daily forecast above, and the next 24 hours in the hourly chart.
What is the weather like right now in Pittsburgh?
Current conditions for Pittsburgh and the next 24 hours — temperature, precipitation chance, and wind by the hour — are in the hourly forecast chart above.
How often is the Pittsburgh forecast updated?
The Pittsburgh forecast on this page is built from Open-Meteo weather-model data and refreshes regularly through the day.
When are sunrise and sunset in Pittsburgh?
Today's sunrise and sunset times for Pittsburgh are in the Almanac section above, along with civil dawn, civil dusk, and day length. Day length is longest near the summer solstice and shortest near the winter solstice.
How accurate is the weather forecast for Pittsburgh?
The next few days in Pittsburgh's forecast are the most reliable; accuracy declines beyond about a week as weather-model uncertainty grows.

Climate

The warm-summer humid continental climate of Pittsburgh, Pennsylvania carries typical Januarys near 28°F and Julys around 73°F — 45°F of seasonal travel.

In a typical year Pittsburgh records about 47 inches of precipitation on around 221 days.

Pittsburgh sits at 40.4°N; that 45°F seasonal swing frames planting windows and frost dates across Pittsburgh.

All cities in Pennsylvania →

Philadelphia, PA weather →

ZIP codes in Pittsburgh

  • 15282
  • 15216
  • 15217
  • 15214
  • 15212
  • 15213
  • 15210
  • 15211
  • 15218
  • 15219
  • 15290
  • 15232
  • 15260
  • 15233
  • 15205
  • 15204
  • 15207
  • 15206
  • 15201
  • 15203
  • 15208
  • 15234
  • 15222
  • 15221
  • 15220
  • 15226
  • 15224
  • 15120
  • 15230
  • 15240
  • 15250
  • 15251
  • 15252
  • 15253
  • 15254
  • 15255
  • 15257
  • 15258
  • 15259
  • 15261
  • 15262
  • 15264
  • 15265
  • 15267
  • 15270
  • 15272
  • 15274
  • 15279
  • 15281
  • 15286
  • 15289
  • 15295

Climate normals from the Open-Meteo Climate API. Köppen approximation from NOAA NCEI U.S. Climate Regions. See methodology for data sources, editorial rules, and corrections. Maintainer: Brian Tighe.