Bloomington, IL Weather & Growing Conditions
Tonight
55°F
Light Rain then Rain Showers
Rain and a slight chance of thunderstorms before midnight, then rain showers. Mostly cloudy. Low around 55, with temperatures rising to around 60 overnight. South wind 14 to 17 mph, with gusts as high as 28 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 55°F | Light Rain then Rain Showers | 14 to 17 mph S | 96% |
| Wednesday | 61°F | Slight Chance Light Rain then Mostly Cloudy | 14 to 17 mph SW | 23% |
| Wednesday Night | 46°F | Mostly Cloudy | 12 mph SW | 5% |
| Thursday | 60°F | Partly Sunny | 10 to 15 mph WSW | 7% |
| Thursday Night | 44°F | Mostly Cloudy then Chance Light Rain | 8 mph NW | 25% |
| Friday | 55°F | Slight Chance Light Rain then Partly Sunny | 8 to 12 mph NNW | 18% |
| Friday Night | 37°F | Mostly Cloudy | 3 to 10 mph NNW | 7% |
| Saturday | 54°F | Mostly Sunny | 6 mph WNW | 2% |
| Saturday Night | 35°F | Partly Cloudy | 5 mph W | 3% |
| Sunday | 59°F | Sunny | 5 to 10 mph W | 13% |
| Sunday Night | 36°F | Mostly Clear | 5 to 8 mph W | 7% |
| Monday | 64°F | Sunny | 5 to 13 mph SW | 3% |
| Monday Night | 41°F | Mostly Clear | 6 to 9 mph WSW | 2% |
| Tuesday | 66°F | Sunny | 8 mph W | 1% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Bloomington, IL
Last spring frost
Apr 21
First fall frost
Oct 20
Growing season
181 days
Hardiness zone
6a
Explore more for Bloomington, IL: full frost dates · planting calendar · Illinois frost dates
Climate data from the nearest NOAA station, Bloomington 5W, Il (5 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.