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Excessive Rainfall Potential for the Southeast; Heat Expands for Center of the Nation; Critical Fire Weather for Pacific Northwest

Flash flooding threatens areas from the Tennessee Valley to the Carolinas as storms repeat along a stalled front. Monsoonal storms may trigger flooding in the Southwest. Dangerous heat expands across the Desert Southwest, Plains, mid-Mississippi Valley and Southern Tier. Critical fire weather for interior Pacific Northwest. Cooler, drier air brings brief relief to the Great Lakes and Northeast. Read More >

Hazardous Weather Conditions

Current conditions at

University of Illinois - Willard (KCMI)

Lat: 40.03°NLon: 88.28°WElev: 741ft.

Fair

78°F

26°C

Humidity 48%
Wind Speed Calm
Barometer 30.15 in (1020.4 mb)
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Heat Index79°F (26°C)
Last update 24 Jul 12:53 pm CDT
Extended Forecast for

Tolono IL

  • This Afternoon

    This Afternoon: Cloudy, with a high near 79. Light south wind.

    High: 79 °F

    Cloudy

  • Tonight

    Tonight: Isolated showers between 4am and 5am. Mostly cloudy, with a low around 61. Light south southeast wind. Chance of precipitation is 20%.

    Low: 61 °F

    Mostly Cloudy
    then Isolated
    Showers

  • Saturday

    Saturday: Isolated showers between 7am and 1pm. Partly sunny, with a high near 82. South wind 3 to 8 mph. Chance of precipitation is 20%.

    High: 82 °F

    Isolated
    Showers

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 68. South southwest wind around 5 mph becoming calm in the evening.

    Low: 68 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 90. Calm wind becoming southwest 5 to 7 mph in the afternoon.

    High: 90 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 72. Southwest wind 5 to 8 mph.

    Low: 72 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 93. Southwest wind 9 to 16 mph, with gusts as high as 24 mph.

    High: 93 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 74.

    Low: 74 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 92.

    High: 92 °F

    Sunny

Detailed Forecast

This Afternoon
Cloudy, with a high near 79. Light south wind.
Tonight
Isolated showers between 4am and 5am. Mostly cloudy, with a low around 61. Light south southeast wind. Chance of precipitation is 20%.
Saturday
Isolated showers between 7am and 1pm. Partly sunny, with a high near 82. South wind 3 to 8 mph. Chance of precipitation is 20%.
Saturday Night
Partly cloudy, with a low around 68. South southwest wind around 5 mph becoming calm in the evening.
Sunday
Mostly sunny, with a high near 90. Calm wind becoming southwest 5 to 7 mph in the afternoon.
Sunday Night
Partly cloudy, with a low around 72. Southwest wind 5 to 8 mph.
Monday
Mostly sunny, with a high near 93. Southwest wind 9 to 16 mph, with gusts as high as 24 mph.
Monday Night
Mostly clear, with a low around 74.
Tuesday
Sunny, with a high near 92.
Tuesday Night
Mostly clear, with a low around 68.
Wednesday
Sunny, with a high near 88.
Wednesday Night
Mostly clear, with a low around 66.
Thursday
Sunny, with a high near 89.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Tolono IL
 39.99°N 88.27°W (Elev. 725 ft)
Last Update:
12:56 pm CDT Jul 24, 2026
Forecast Valid:
1pm CDT Jul 24, 2026-6pm CDT Jul 30, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation