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

South Bend, Indiana Weather

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

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

South Bend, IN
Sunday, August 2 at 10:59 AM
72
°
Mostly Clear
Feels like
73°
Humidity
80%
Wind
12 mph
Sunrise
2:40 AM
Sunset
5:01 PM
South Bend, IN
Hour by hour · 24h
24-Hour ForecastSouth Bend, IN: 24-hour forecast. Temperatures range from 61 to 80 degrees Fahrenheit.
L 61°H 80°
South Bend, IN
7-day forecast
  1. Today
    Aug 2
    Overcast
    18%
    —
    80°67°—
  2. Monday
    Aug 3
    Mostly Clear
    —
    —
    83°61°+3°
  3. Tuesday
    Aug 4
    Clear
    —
    —
    81°60°-2°
  4. Wednesday
    Aug 5
    Overcast
    21%
    —
    81°58°0°
  5. Thursday
    Aug 6
    Rain
    52%
    0.30″
    80°64°-1°
  6. Friday
    Aug 7
    Overcast
    20%
    —
    81°61°+1°
  7. Saturday
    Aug 8
    Light Drizzle
    21%
    0.02″
    87°69°+6°
South Bend, IN
Next 24 hours · Mild now
56°70°84°12p6p12a6anow 72°high 80°low 61°
South Bend, IN
Anemometer · 24h winds · from true
NESW
From · True
N
006° · backing 101°
Direction
N
006°
Sustained
12
mph
Gust
21
mph
Peak 24h
33
avg 9 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 9 mph · pk 33 mph @ 10:00p
01020MPHB1B2B3B4B5-21h-18h-15h-12h-9h-6h-3h-24hNOWpk 224SUSTGUST
−24h−18h−12h−6hnow
Light breeze backing 101° from the n.
South Bend, IN
Barometer · 24h pressure · mb
STORMRAINCHANGEFAIRDRY9901000101010201030
Pressure · mb
984.1
+1.6 mb in 3h · rising · 29.06 inHg
Now
984.1
mb
3h
+1.6
mb
12h
+2.1
mb
24h
+1.5
mb
Regime · STORM
STORM
RAIN
CHANGE
FAIR
DRY
24h · Pressure · mb
range 981–984
975980985990-21h-18h-15h-12h-9h-6h-3h-24hNOW983.3980.7983.3
The low is filling — pressure climbing out of storm territory.
South Bend, IN
Air quality
35
AQI
Good
→+2 in 6h▲Peak ~46 @ 9 PM

AQI 35 (Good), driven by PM2.5. AQI flat over the last 6 hours (within ±3 points). PM2.5 at 10.0 µg/m³, PM10 at 10.4 µg/m³ — typical background levels with no transport signature.

OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion during the projected peak around 9 PM.

PM 2.5DRIVERGood
10.0μg/m³
PM 10Good
10μg/m³
NO₂Good
3μg/m³
OzoneModerate
71μg/m³
UV IndexLow
2.0

What's driving it

Ozone × UV × Sky

Ozone at AQI 34 now. With UV 2.8 peaking around 1 PM under partly cloudy skies, surface ozone likely climbs to AQI 9.

Present
AQI 34
UV peak
2.8 at 1 PM
Sky at peak
partly cloudy
Projected peak
AQI 9

PM × Wind × Precip

PM2.5 at 10.0 µg/m³, PM10 at 10.4 µg/m³ — typical background levels with no transport signature.

PM2.5/PM10
0.96
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/m³310
South Bend, IN
Sky cover · visibility · 24h
Cloud cover
24%
CLEAR
100%0%−24h−18h−12h−6hnow
Visibility
35.7mi
UNLIMITED
37 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 · South Bend, IN · 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 · South Bend, IN · NOAA NESDIS / STAR · 5-min cadence · up to 10000 px
South Bend, IN
Satellite · infrared · animated
South Bend, IN
Loading IR frames…
IR · cloud-top temp© RainViewer · Carto
South Bend, IN
Almanac · Sunday, August 2
Red sky at night, sailor's delight.
Civil dawn
6:10 AM
Sunrise
2:40 AM
Daylight
14h 21m
Sunset
5:01 PM
Civil dusk
9:34 PM
Planting note
Sow fall peas. Start kale and collard seedlings for fall.
South Bend, IN
The moon
Waning Gibbous
84% illuminated
Moonrise
10:29 PM
Moonset
10:50 AM
In sign
♓︎ Pisces
South Bend, IN
Microseason
Aug 1–5

Night falls a minute earlier

celestial
Jan 159% of the yearDec 31

Read this microseason across nine climate regions →

South Bend at a glance

  • Today vs. normal: 11°F above the seasonal normal for this latitude
  • Last frost: April 26 (climatological average for this latitude)
  • Microseason: Aug 1–5
  • Planting window: Sow fall peas. Start kale and collard seedlings for fall.

ZIP codes: 46601, 46613, 46614, 46615, 46616, 46617, 46619, 46624 +3 more

16-Day Forecast — South Bend

  1. Sun80°67°18%
  2. Mon83°61°0%
  3. Tue81°60°0%
  4. Wed81°58°21%
  5. Thu80°64°52%
  6. Fri81°61°20%
  7. Sat87°69°21%
  8. Sun91°73°21%
  9. Mon82°67°22%
  10. Tue78°66°25%
  11. Wed88°69°25%
  12. Thu89°70°31%
  13. Fri91°75°32%
  14. Sat86°68°29%
  15. Sun83°63°23%
  16. Mon83°66°25%

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

Live wind & temperature near South Bend

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.

Sun & seasons in South Bend

South Bend sits in St. Joseph County, where the year’s longest day runs 15h 12m of daylight and its shortest just 9h 9m — a swing of +6h 3m between the June and December solstices. Clocks spring forward on Sunday, March 8, 2026 and fall back on Sunday, November 1, 2026.

Indianapolis, the state’s largest city, lies about 131 miles to the S. The nearest town South Bend tracks is Elkhart, roughly 16 miles to the E.

Air quality in South Bend’s county has trended cleaner since 2020; its cleanest year on record was 2025 (median AQI 43). See the full air-quality history for South Bend.

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

South Bend's warmest month is July (~75°F mean) and its coldest is January (~24°F). Rainfall peaks in May (4.3 inches) and bottoms out in January (2.2 inches).

MonthMean tempPrecipRainy days
January24°2.2″21
February27°2.3″17
March37°3.1″19
April49°3.8″18
May59°4.3″17
June69°4.2″16
July75°3.5″15
August74°3.2″14
September67°3.6″14
October54°3.1″14
November41°3.3″18
December29°2.8″20

Regional context

In South Bend, NOAA NCEI 1991-2020 normals put January near 24°F and July near 75°F — a 50°F seasonal arc — with about 39.3 inches of precipitation over 203 rainy or snowy days.

Rainfall in South Bend stays even across the calendar: May tops out at 4.3 inches over 17.5 rainy days, and January still logs 2.2 inches across 20.9 — a narrow range for South Bend. It is a balanced pattern South Bend shares with places like Notre Dame, IN, Ardmore, IN and Roseland, IN.

Around mid-April, South Bend sheds its freezing nights — kale, peas, spinach, and parsnips go into South Bend's beds. South Bend's heat-lovers — tomatoes, peppers, squash — hold off until South Bend's frost risk clears, 10-14 days on. By mid-November, frost is back in South Bend — protect or harvest anything tender. South Bend's low ground holds frost later into spring than South Bend's benches, which run 3-5 days ahead.

Similar climates: Notre Dame, IN, Ardmore, IN, Roseland, IN, Indian Village, IN, Gilmer Park, IN.

Naturalist notes

Late May brings the return of ruby-throated hummingbirds to South Bend's gardens and feeders after their long migration north.

Apple trees typically finish blooming by mid-May, marking the transition from spring's delicate petals to summer's developing fruit.

Frequently asked

When does it freeze in South Bend?
In South Bend, expect the last spring frost near mid-April; South Bend's first autumn frost comes around mid-November.
What is the rainy season in South Bend?
May is the wettest month in South Bend, about 4.3 inches on average; the year totals roughly 39 inches.
What is the warmest month in South Bend?
On average July tops the year in South Bend at about 75°F.
What is the coldest month in South Bend?
The coldest stretch in South Bend falls in January, around 24°F on average.
When can I start a vegetable garden in South Bend?
Hardy spring crops go in near mid-April in South Bend; tender peppers and squash wait 10–14 days.
How many rainy days does South Bend get?
South Bend averages about 203 days with measurable rain or snow each year.
What hardiness zone is South Bend?
With January around 24°F, South Bend's zone reflects that minimum — the USDA ZIP map confirms South Bend's band.
What is the 10-day forecast for South Bend?
South Bend'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 South Bend?
See this week's day-by-day rain chances for South Bend in the daily forecast above, and the next 24 hours in the hourly chart.
What is the weather like right now in South Bend?
Current conditions for South Bend and the next 24 hours — temperature, precipitation chance, and wind by the hour — are in the hourly forecast chart above.
How often is the South Bend forecast updated?
The South Bend forecast on this page is built from Open-Meteo weather-model data and refreshes regularly through the day.
When are sunrise and sunset in South Bend?
Today's sunrise and sunset times for South Bend 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 South Bend?
The next few days in South Bend'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 South Bend, Indiana carries typical Januarys near 24°F and Julys around 75°F — 51°F of seasonal travel.

Rain and snow bring South Bend roughly 39 inches a year across approximately 203 measurable-precipitation days.

From 41.7°N, South Bend sees a 51°F seasonal swing that governs South Bend's planting and frost windows.

All cities in Indiana →

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ZIP codes in South Bend

  • 46616
  • 46635
  • 46628
  • 46601
  • 46613
  • 46617
  • 46619
  • 46614
  • 46615
  • 46626
  • 46634
  • 46660
  • 46680
  • 46699

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.