Bloomington, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Bloomington, a city in Mclean County, Illinois.
Overnight
68°F
Mostly Cloudy
Mostly cloudy, with a low around 68. Southeast wind around 10 mph, with gusts as high as 18 mph.
7-day forecast for Bloomington
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 68°F | Mostly Cloudy | 10 mph SE | 10% |
| Saturday | 86°F | Chance Showers And Thunderstorms | 9 mph SE | 46% |
| Saturday Night | 68°F | Chance Showers And Thunderstorms | 7 mph SW | 47% |
| Sunday | 76°F | Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 5 to 15 mph N | 70% |
| Sunday Night | 58°F | Showers And Thunderstorms Likely then Chance Showers And Thunderstorms | 16 mph NE | 61% |
| Monday | 66°F | Showers And Thunderstorms Likely | 17 mph ENE | 66% |
| Monday Night | 53°F | Chance Rain Showers | 13 to 17 mph NE | 49% |
| Tuesday | 65°F | Chance Rain Showers | 16 mph NE | 29% |
| Tuesday Night | 51°F | Chance Rain Showers then Mostly Cloudy | 9 to 16 mph NNE | 29% |
| Wednesday | 68°F | Mostly Sunny | 13 mph NNE | 4% |
| Wednesday Night | 53°F | Partly Cloudy | 6 to 12 mph NNE | 3% |
| Thursday | 70°F | Partly Sunny | 7 to 10 mph NNE | 3% |
| Thursday Night | 54°F | Partly Cloudy | 6 to 10 mph NE | 3% |
| Friday | 73°F | Mostly Sunny | 7 to 10 mph NE | 3% |
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 Sep 19, 2026.