Bloomington, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Bloomington, a city in Mclean County, Illinois.
Overnight
57°F
Slight Chance Light Rain
A slight chance of rain. Mostly cloudy, with a low around 57. South southwest wind around 14 mph, with gusts as high as 24 mph. Chance of precipitation is 20%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast for Bloomington
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 57°F | Slight Chance Light Rain | 14 mph SSW | 24% |
| Wednesday | 60°F | Slight Chance Drizzle | 13 to 16 mph SW | 14% |
| Wednesday Night | 46°F | Slight Chance Drizzle then Mostly Cloudy | 13 mph SW | 10% |
| Thursday | 58°F | Mostly Cloudy then Slight Chance Light Rain | 12 to 16 mph WSW | 18% |
| Thursday Night | 43°F | Chance Light Rain | 7 to 10 mph NW | 35% |
| Friday | 52°F | Partly Sunny | 13 mph NNW | 8% |
| Friday Night | 34°F | Partly Cloudy | 5 to 9 mph NNW | 0% |
| Saturday | 53°F | Sunny | 7 mph NW | 0% |
| Saturday Night | 33°F | Mostly Clear | 5 mph WNW | 2% |
| Sunday | 58°F | Sunny | 5 to 10 mph W | 1% |
| Sunday Night | 35°F | Clear | 6 mph W | 0% |
| Monday | 63°F | Sunny | 3 to 9 mph SW | 0% |
| Monday Night | 41°F | Clear | 5 to 8 mph SW | 0% |
| Tuesday | 66°F | Sunny | 7 mph WNW | 0% |
Forecast source: National Weather Service (api.weather.gov) for Bloomington (40.476, -88.970). Updated through the day.
Growing snapshot for Bloomington
Last spring frost
Apr 21
First fall frost
Oct 20
Growing season
181 days
Hardiness zone
6a
More local growing data for Bloomington: nearby ZIP 61701 weather · frost dates · planting calendar · Illinois frost dates
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Climate data from the nearest NOAA station, Bloomington 5W, Il (5 mi from Bloomington). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.