National Weather Service Forecast for: Bloomington IL
Issued by: National Weather Service Lincoln, IL
Updated: 2:52 am CDT Aug 26, 2026
 
Overnight

Overnight: Mostly cloudy, with a low around 65. South wind around 7 mph.
Mostly Cloudy

Wednesday

Wednesday: A slight chance of showers, then a chance of showers and thunderstorms after 1pm.  Mostly sunny, with a high near 84. South southwest wind 7 to 13 mph becoming west in the afternoon. Winds could gust as high as 20 mph.  Chance of precipitation is 30%.
Mostly Sunny
then Chance
T-storms
Wednesday
Night
Wednesday Night: Mostly clear, with a low around 64. Northwest wind 5 to 8 mph.
Mostly Clear

Thursday

Thursday: Sunny, with a high near 82. North northwest wind 5 to 8 mph.
Sunny

Thursday
Night
Thursday Night: Mostly clear, with a low around 61. North northwest wind 5 to 7 mph becoming light and variable  after midnight.
Mostly Clear

Friday

Friday: Sunny, with a high near 81. Light northeast wind.
Sunny

Friday
Night
Friday Night: Mostly clear, with a low around 60. East southeast wind 3 to 5 mph.
Mostly Clear

Saturday

Saturday: Mostly sunny, with a high near 82.
Mostly Sunny

Saturday
Night
Saturday Night: Partly cloudy, with a low around 65.
Partly Cloudy

Lo 65 °F Hi 84 °F Lo 64 °F Hi 82 °F Lo 61 °F Hi 81 °F Lo 60 °F Hi 82 °F Lo 65 °F

Hazardous Weather Outlook
 

Overnight
 
Mostly cloudy, with a low around 65. South wind around 7 mph.
Wednesday
 
A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 84. South southwest wind 7 to 13 mph becoming west in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 30%.
Wednesday Night
 
Mostly clear, with a low around 64. Northwest wind 5 to 8 mph.
Thursday
 
Sunny, with a high near 82. North northwest wind 5 to 8 mph.
Thursday Night
 
Mostly clear, with a low around 61. North northwest wind 5 to 7 mph becoming light and variable after midnight.
Friday
 
Sunny, with a high near 81. Light northeast wind.
Friday Night
 
Mostly clear, with a low around 60. East southeast wind 3 to 5 mph.
Saturday
 
Mostly sunny, with a high near 82.
Saturday Night
 
Partly cloudy, with a low around 65.
Sunday
 
Mostly sunny, with a high near 87.
Sunday Night
 
Partly cloudy, with a low around 71.
Monday
 
Mostly sunny, with a high near 89.
Monday Night
 
Partly cloudy, with a low around 72.
Tuesday
 
Mostly sunny, with a high near 88.

 

Forecast from NOAA-NWS for Bloomington IL.