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

Cary, North Carolina Weather

Dusk arrives one minute earlier each night. Day 43 of summer. Read this microseason across nine climate regions →

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

Cary, NC
Sunday, August 2 at 10:59 AM
84
°
Mostly Clear
Feels like
91°
Humidity
74%
Wind
11 mph
Sunrise
2:24 AM
Sunset
4:18 PM
Cary, NC
Hour by hour · 24h
24-Hour ForecastCary, NC: 24-hour forecast. Temperatures range from 74 to 89 degrees Fahrenheit with a 30% chance of precipitation at 4 PM.
L 74°H 89°
Cary, NC
7-day forecast
  1. Today
    Aug 2
    Light Showers
    30%
    0.07″
    89°76°—
  2. Monday
    Aug 3
    Showers
    23%
    0.27″
    87°74°-2°
  3. Tuesday
    Aug 4
    Showers
    66%
    0.03″
    80°71°-7°
  4. Wednesday
    Aug 5
    Thunderstorm
    54%
    —
    86°70°+6°
  5. Thursday
    Aug 6
    Light Drizzle
    36%
    —
    93°69°+7°
  6. Friday
    Aug 7
    Light Drizzle
    34%
    —
    95°72°+2°
  7. Saturday
    Aug 8
    Light Drizzle
    29%
    —
    94°72°-1°
Cary, NC
Next 24 hours · Warm now
HOT 90°70°81°92°12p6p12a6anow 81°high 89°low 74°PRECIP %
Cary, NC
Anemometer · 24h winds · from true
NESW
From · True
SSE
158° · backing 18°
Direction
SSE
158°
Sustained
11
mph
Gust
16
mph
Peak 24h
30
avg 8 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 8 mph · pk 30 mph @ 10:00p
0102030MPHB1B2B3B4B5B6-21h-18h-15h-12h-9h-6h-3h-24hNOWpk 257SUSTGUST
−24h−18h−12h−6hnow
Light breeze backing 18° from the sse.
Cary, NC
Barometer · 24h pressure · mb
STORMRAINCHANGEFAIRDRY9901000101010201030
Pressure · mb
994.9
+0.5 mb in 3h · steady · 29.38 inHg
Now
994.9
mb
3h
+0.5
mb
12h
-0.6
mb
24h
-3.2
mb
Regime · STORM
STORM
RAIN
CHANGE
FAIR
DRY
24h · Pressure · mb
range 995–999
9909951000STORM|RAIN10051010RAIN|CHG1015CHG|FAIR10201025FAIR|DRY1030-21h-18h-15h-12h-9h-6h-3h-24hNOW998.6994.5995.4
Deep low — expect rough seas, strong wind, and persistent rain.
Cary, NC
Air quality
45
AQI
Good
→-4 in 6h

AQI 45 (Good), driven by Ozone. AQI flat over the last 6 hours (within ±4 points). Ozone at AQI 41 now. With UV 3.1 peaking around 1 PM under partly cloudy skies, surface ozone likely climbs to AQI 12.

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

PM 2.5Good
5.6μg/m³
PM 10Good
6μg/m³
NO₂Good
2μg/m³
OzoneDRIVERModerate
86μg/m³
UV IndexModerate
2.2

What's driving it

Ozone × UV × Sky

Ozone at AQI 41 now. With UV 3.1 peaking around 1 PM under partly cloudy skies, surface ozone likely climbs to AQI 12.

Present
AQI 41
UV peak
3.1 at 1 PM
Sky at peak
partly cloudy
Projected peak
AQI 12

PM × Wind × Precip

PM2.5 at 5.6 µg/m³, PM10 at 6.4 µg/m³ — typical background levels with no transport signature.

PM2.5/PM10
0.87
Wind
breezy
Recent rain
0h in last 6h
Pattern
background

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/m³410
Cary, NC
Sky cover · visibility · 24h
Cloud cover
30%
MOSTLY CLEAR
100%0%−24h−18h−12h−6hnow
Visibility
43.8mi
UNLIMITED
85 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
14:59 UTC · Cary, NC · 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
14:59 UTC · Cary, NC · NOAA NESDIS / STAR · 5-min cadence · up to 10000 px
Cary, NC
Satellite · infrared · animated
Cary, NC
Loading IR frames…
IR · cloud-top temp© RainViewer · Carto
Cary, NC
Almanac · Sunday, August 2
Red sky at night, sailor's delight.
Civil dawn
5:56 AM
Sunrise
2:24 AM
Daylight
13h 54m
Sunset
4:18 PM
Civil dusk
8:48 PM
Planting note
Sow fall peas. Start kale and collard seedlings for fall.
Cary, NC
The moon
Waning Gibbous
84% illuminated
Moonrise
9:57 PM
Moonset
10:17 AM
In sign
♓︎ Pisces
Cary, NC
Microseason
Aug 1–5

Dusk arrives one minute earlier each night

celestial
Jan 159% of the yearDec 31

Read this microseason across nine climate regions →

Cary at a glance

  • Today vs. normal: 17°F above the seasonal normal for this latitude
  • Last frost: March 22 (climatological average for this latitude)
  • Microseason: Aug 1–5
  • Planting window: Sow fall peas. Start kale and collard seedlings for fall.

ZIP codes: 27511, 27513, 27518, 27519

16-Day Forecast — Cary

  1. Sun89°76°30%
  2. Mon87°74°23%
  3. Tue80°71°66%
  4. Wed86°70°54%
  5. Thu93°69°36%
  6. Fri95°72°34%
  7. Sat94°72°29%
  8. Sun84°71°30%
  9. Mon96°70°23%
  10. Tue99°72°23%
  11. Wed95°73°23%
  12. Thu98°74°27%
  13. Fri98°73°32%
  14. Sat97°74°38%
  15. Sun97°73°48%
  16. Mon95°73°32%

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

Live wind & temperature near Cary

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 — Cary

SPC includes Cary in the general thunderstorm area today — no severe risk, but storms are possible.

  • TODAYTSTMGeneral Thunderstorms
  • TOMORROWTSTMGeneral Thunderstorms
  • DAY 3TSTMGeneral Thunderstorms

Thunderstorms possible. Not severe, but capable of producing lightning and brief heavy rain.

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 Cary

Cary sits in Wake County, where the year’s longest day runs 14h 35m of daylight and its shortest just 9h 44m — a swing of +4h 51m between the June and December solstices. Clocks spring forward on Sunday, March 8, 2026 and fall back on Sunday, November 1, 2026.

Charlotte, the state’s largest city, lies about 120 miles to the WSW. The nearest town Cary tracks is Raleigh, roughly 10 miles to the ENE.

Air quality in Cary’s county has held roughly steady since 2020; its cleanest year on record was 2025 (median AQI 43). See the full air-quality history for Cary.

January 1–5: Frost quiets the live oaks.January 6–10: Still water thickens with ice.January 11–15: Springs begin to move beneath ice.January 16–20: Cardinal dawn calls grow bolder.January 21–25: Late January thaw pulses.January 26–31: Last freeze locks the land.February 1–5: February's lengthening light.February 6–10: Warming winds thaw the margin.February 11–15: Magnolia blooms break the gray.February 16–20: Mockingbirds resume the dawn chorus.February 21–25: Rain replaces the last snow.February 26–28: Mist clings to greening valleys.March 1–5: The green pulse awakens.March 6–10: Hibernators emerge to call.March 11–15: Dogwood and redbud ignite.March 16–20: Swallowtails emerge from winter silk.March 21–25: Light crowns the dogwood canopy.March 26–31: Redbud cascades over the thaw.April 1–5: Thunder announces the wet season.April 6–10: Barn swallows carve the warming sky.April 11–15: Magnolia blooms and falls in a breath.April 16–20: First rainbows arch over thunderheads.April 21–25: Reeds push through marsh water.April 26–30: Frost retreats; seedlings rise free.May 1–5: Warblers flood the canopy in waves.May 6–10: Tulip poplar lights the forest crown.May 11–15: Shad pulse upstream through rapids.May 16–20: Roses open on the Piedmont edge.May 21–25: Fireflies scout the humid dusk.May 26–31: Frog choruses rise from every wetland.June 1–5: Fireflies pulse through the magnolias.June 6–10: Kudzu climbs deeper into green.June 11–15: Sun climbs to its northern throne.June 16–20: Heat settles and the rain begins.June 21–25: The longest day turns toward shadow.June 26–30: Fireflies drift through Spanish moss.July 1–5: Cicadas claim the scorching afternoon.July 6–10: Thunderheads boil and break at dusk.July 11–15: Thunder builds each drowsy afternoon.July 16–20: Cicadas claim the long noon.July 21–25: Dog days drape the earth in haze.July 26–31: Katydids begin their rasping chorus.August 1–5: Dusk arrives one minute earlier each night.August 6–10: Meteorological summer's turning page.August 11–15: Cool winds gather at the margins.August 16–20: Dog-day cicadas rise.August 21–25: Heat breaks in creek beds.August 26–31: Monarchs gather strength.September 1–5: Harvests begin in earnest.September 6–10: Dew beads on resurrection fern.September 11–15: Raptors trail the thermals.September 16–20: Day and dark find balance.September 21–25: Thunder quiets the land.September 26–30: Insects retreat below.October 1–5: Swamp waters recede.October 6–10: Maples ignite the ridge.October 11–15: Asters crown the meadows.October 16–20: Crickets sing at dusk.October 21–25: Frost paints the garden.October 26–31: Light rains whisper down.November 1–5: Sweetgum Turns Crimson.November 6–10: Camellia Blooms Break Through.November 11–15: Earth Stiffens Underfoot.November 16–20: Bare Limbs Hold the Light.November 21–25: First Frost Grips the High Ground.November 26–30: North Wind Strips the Last Leaves.December 1–5: Darkness Falls Before Dinner.December 6–10: Winter Locks the Land.December 11–15: Wildlife Retreats to Shelter.December 16–20: Ice Edges Deepen Inward.December 21–25: The Sun Begins its 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

Dusk arrives one minute earlier each night

Sunset slides back toward 8 PM; darkness creeps in, signaling summer's decline though heat persists.

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——
Marchlettuce, peas, spinach, radishes—
Aprillettuce, peas, spinach, radishes, tomatoes, peppers, beans, squash—
Maytomatoes, peppers, beans, squashlettuce, peas, radishes
Junetomatoes, peppers, beans, squashlettuce, peas, radishes
July—tomatoes, beans, summer squash
August—tomatoes, beans, summer squash
September—tomatoes, beans, summer squash
Octoberfall brassicas, garlic (overwinter), carrotswinter squash, tomatoes (last)
Novemberfall brassicas, garlic (overwinter), carrots—
December——

A year in weather

Cary peaks at about 80°F in July and bottoms near 42°F in January; September brings the heaviest rain (5.7 inches) and February the least (2.9 inches).

MonthMean tempPrecipRainy days
January42°3.6″7
February44°2.9″6
March51°4.2″7
April61°3.6″6
May69°4.0″6
June77°4.9″7
July80°4.7″7
August79°4.7″7
September73°5.7″6
October62°3.9″5
November52°3.5″5
December45°3.7″6

Regional context

By the nearest station's NOAA NCEI 1991-2020 normals, Cary sees 42°F Januarys and 80°F Julys, a 39°F range, plus around 49.4 inches of precipitation across 74 days.

No season owns Cary's rain: September reaches 5.7 inches across 5.9 days and February keeps 2.9 inches on 6.0, an even spread through Cary's year. It is a balanced pattern Cary shares with places like Morrisville, NC, Apex, NC and Holly Springs, NC.

The cool-season window in Cary starts at mid-March, when nights stop freezing — think peas, lettuce, spinach, and radishes. In Cary, warm-season transplants — tomatoes, peppers, basil — wait two weeks past Cary's frost date. Around mid-December, freezing nights resume in Cary and tender crops must come in. Within Cary, cold-air pooling chills low spots by 5-10°F, shifting Cary's local frost dates.

Similar climates: Morrisville, NC, Apex, NC, Holly Springs, NC, Raleigh, NC, Carolina Meadows, NC.

Naturalist notes

Late May brings the arrival of migrating ruby-throated hummingbirds to North Carolina feeders and flowering plants.

Dogwood trees typically finish their spectacular white bloom period by early May across the Piedmont region.

Frequently asked

When does it freeze in Cary?
In Cary, expect the last spring frost near mid-March; Cary's first autumn frost comes around mid-December.
What is the rainy season in Cary?
September is the wettest month in Cary, about 5.7 inches on average; the year totals roughly 49 inches.
What is the warmest month in Cary?
July is Cary's warmest month, averaging about 80°F.
What is the coldest month in Cary?
Cary bottoms out in January, with a mean near 42°F.
When can I start a vegetable garden in Cary?
Time tomatoes in Cary for two weeks after mid-March; peas and greens start at Cary's frost line.
How many rainy days does Cary get?
Expect roughly 74 wet days a year in Cary.
What hardiness zone is Cary?
Cary sits in the USDA zone set by January lows near 42°F; the USDA ZIP tool gives the band.
What is the 10-day forecast for Cary?
Cary'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 Cary?
See this week's day-by-day rain chances for Cary in the daily forecast above, and the next 24 hours in the hourly chart.
What is the weather like right now in Cary?
Current conditions for Cary and the next 24 hours — temperature, precipitation chance, and wind by the hour — are in the hourly forecast chart above.
How often is the Cary forecast updated?
The Cary forecast on this page is built from Open-Meteo weather-model data and refreshes regularly through the day.
When are sunrise and sunset in Cary?
Today's sunrise and sunset times for Cary 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 Cary?
The next few days in Cary's forecast are the most reliable; accuracy declines beyond about a week as weather-model uncertainty grows.

Climate

Cary, North Carolina has a humid subtropical climate: January averages roughly 42°F, July about 80°F, 38°F between them.

Across the year, Cary collects about 49 inches of precipitation over roughly 74 days with measurable rain or snow.

Latitude 35.8°N gives Cary its 38°F swing, and with it the rhythm of Cary's growing season.

All cities in North Carolina →

Raleigh, NC weather →

ZIP codes in Cary

  • 27560
  • 27518
  • 27519
  • 27511
  • 27513
  • 27512

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.