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Bloomington, IL Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for Bloomington, a city in Mclean County, Illinois.

This Afternoon
82°F
Slight Chance Rain Showers
A slight chance of rain showers. Mostly cloudy, with a high near 82. South wind around 8 mph. Chance of precipitation is 20%.

7-day forecast for Bloomington

WhenTempForecastWindPrecip
This Afternoon 82°F Slight Chance Rain Showers 8 mph S 17%
Tonight 68°F Mostly Cloudy then Slight Chance Showers And Thunderstorms 8 mph SSW 20%
Sunday 78°F Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms 8 to 14 mph NNE 45%
Sunday Night 58°F Chance Showers And Thunderstorms 12 to 15 mph NE 48%
Monday 67°F Rain Showers Likely 15 mph ENE 64%
Monday Night 54°F Chance Rain Showers 13 to 16 mph ENE 51%
Tuesday 65°F Chance Rain Showers 14 mph NE 51%
Tuesday Night 52°F Mostly Cloudy 8 to 15 mph NNE 14%
Wednesday 67°F Partly Sunny 9 to 13 mph NNE 4%
Wednesday Night 53°F Mostly Cloudy 6 to 13 mph NNE 1%
Thursday 71°F Partly Sunny 8 mph NNE 2%
Thursday Night 55°F Mostly Cloudy 7 mph NNE 7%
Friday 74°F Partly Sunny 8 mph NE 7%
Friday Night 55°F Partly Cloudy 7 mph NE 7%

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 20, 2026.