South Bend, Indiana Weather
Day 93 of summer. Read today’s microseason across nine climate regions →
South Bend weather forecast — hour by hour, 7-day outlook, NOAA radar
Conditions updated 10:22 AM EDT · Open-Meteo
- TodaySep 21Overcast24%—64°56°—
- TuesdaySep 22Overcast——60°49°-4°
- WednesdaySep 23Overcast——60°55°0°
- ThursdaySep 24Overcast——70°56°+10°
- FridaySep 25Overcast——67°52°-3°
- SaturdaySep 26Overcast——60°56°-7°
- SundaySep 27Light Drizzle—0.01″73°57°+13°
Air quality now AQI 26 · Good
AQI 26 (Good), driven by Ozone. AQI flat over the last 6 hours (within ±3 points).
OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion.
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).
September dries up ditches or breaks down bridges.
- Moonrise
- 5:23 PM
- Moonset
- 2:00 AM
- In sign
- ♑︎ Capricorn
South Bend at a glance
- Today vs. normal: Today averages 60°F (high 64°F, low 56°F), 4°F below the 64°F normal for Sep 21
- Last frost: April 23 (1991–2020 median, NOAA station 3 km away)
- Microseason: Sep 21–25
- Planting calendar: September — plant garlic (overwinter); harvest tomatoes, peppers, beans, summer squash, winter squash
16-Day Forecast — South Bend
- Mon64°56°24%
- Tue60°49°3%
- Wed60°55°4%
- Thu70°56°1%
- Fri67°52°1%
- Sat60°56°3%
- Sun73°57°6%
- Mon77°60°6%
- Tue75°64°20%
- Wed72°56°22%
- Thu64°51°16%
- Fri55°48°10%
- Sat80°55°23%
- Sun63°53°19%
- Mon56°45°19%
- Tue57°40°19%
Forecast data from Open-Meteo (CC BY 4.0).
Live wind & temperature near South Bend
Interactive wind and temperature map centered on South Bend — it loads in your browser. Open the full weather map.
Right now in the garden
Fall planting + final harvests
As of September 21, the season's first frost (typically October 23) is approaching. Pick what frost-tender plants still carry before the next cold front. This city's planting calendar for September: plant garlic (overwinter); harvest tomatoes, peppers, beans, summer squash, and winter squash.
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
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.
Planting calendar
| Month | Plant | Harvest |
|---|---|---|
| April | lettuce, peas, spinach, radishes | radishes |
| May | lettuce, peas, spinach, radishes, tomatoes, peppers, beans, squash | lettuce, peas, spinach, radishes |
| June | tomatoes, peppers, beans, squash | lettuce, peas, spinach, radishes |
| July | tomatoes, peppers, beans, squash | lettuce, peas, beans, summer squash, garlic |
| August | beans, squash, fall brassicas, carrots | tomatoes, peppers, beans, summer squash |
| September | garlic (overwinter) | tomatoes, peppers, beans, summer squash, winter squash |
| October | garlic (overwinter) | tomatoes, peppers, beans, summer squash, winter squash, fall brassicas, carrots |
| November | — | fall brassicas, carrots |
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).
| Month | Mean temp | Precip |
|---|---|---|
| January | 24° | 2.2″ |
| February | 27° | 2.3″ |
| March | 37° | 3.1″ |
| April | 49° | 3.8″ |
| May | 59° | 4.3″ |
| June | 69° | 4.2″ |
| July | 75° | 3.5″ |
| August | 74° | 3.2″ |
| September | 67° | 3.6″ |
| October | 54° | 3.1″ |
| November | 41° | 3.3″ |
| December | 29° | 2.8″ |
Regional context
Similar climates Notre Dame, IN, Ardmore, IN, Roseland, IN
In South Bend, modelled 1991-2020 normals (EC_Earth3P_HR model via Open-Meteo) put January near 24°F and July near 75°F — a 50°F seasonal arc — with about 39.3 inches of precipitation.
Rainfall in South Bend splits evenly between the seasons: May tops out at 4.3 inches, and January logs 2.2 inches — neither half of South Bend's year dominates. It is a balanced pattern South Bend shares with places like Notre Dame, IN, Ardmore, IN and Roseland, IN.
Around April 23, 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 October 23, frost is back in South Bend — protect or harvest anything tender. That date is a median: South Bend freezes sooner in half of years.
Similar climates: Notre Dame, IN, Ardmore, IN, Roseland, IN, Indian Village, IN, Gilmer Park, IN.
Frequently asked
- When does it freeze in South Bend?
- In South Bend, expect the last spring frost near April 23; South Bend's first autumn frost comes around October 23.
- 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 April 23 in South Bend; tender peppers and squash wait 10–14 days.
- 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.
South Bend sits at 41.7°N; its climate zone is warm-summer humid continental (Köppen approximation).
ZIP codes in South Bend
- 46601
- 46613
- 46614
- 46615
- 46616
- 46617
- 46619
- 46624
- 46626
- 46628
- 46634
- 46635
- 46637
- 46660
- 46680
- 46699