National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Joliet Regional Airport (KJOT)

Lat: 41.52°NLon: 88.18°WElev: 572ft.

Partly Cloudy

74°F

23°C

Humidity 97%
Wind Speed Calm
Barometer 29.98 in
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Last update 2 Sep 5:55 am CDT
Extended Forecast for

Manhattan IL

Heat Advisory September 2, 12:00pm until September 2, 09:00pm
Click here for hazard details and duration
Heat Advisory

  • Today

    Today: Sunny, with a high near 93. Heat index values as high as 105. West southwest wind 5 to 15 mph, with gusts as high as 20 mph.

    High: 93 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 74. South southwest wind around 5 mph, with gusts as high as 15 mph.

    Low: 74 °F

    Mostly Clear

  • Thursday

    Thursday: A 30 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 91. Heat index values as high as 101. South wind around 5 mph becoming west in the afternoon. Winds could gust as high as 10 mph.

    High: 91 °F

    Chance
    T-storms

  • Thursday Night

    Thursday Night: A 40 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 72. East wind around 5 mph becoming south after midnight.

    Low: 72 °F

    Mostly Clear
    then Chance
    T-storms

  • Friday

    Friday: A 40 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 89. Calm wind becoming east southeast around 5 mph in the morning.

    High: 89 °F

    Chance
    T-storms

  • Friday Night

    Friday Night: A 50 percent chance of showers and thunderstorms, mainly after 1am. Partly cloudy, with a low around 72.

    Low: 72 °F

    Slight Chance
    T-storms then
    Chance
    T-storms

  • Saturday

    Saturday: A 30 percent chance of showers and thunderstorms, mainly before 1pm. Mostly sunny, with a high near 86.

    High: 86 °F

    Chance
    T-storms

  • Saturday Night

    Saturday Night: A chance of showers after 1am. Partly cloudy, with a low around 68.

    Low: 68 °F

    Partly Cloudy
    then Chance
    Showers

  • Sunday

    Sunday: Mostly sunny, with a high near 84.

    High: 84 °F

    Mostly Sunny

Detailed Forecast

Today
Sunny, with a high near 93. Heat index values as high as 105. West southwest wind 5 to 15 mph, with gusts as high as 20 mph.
Tonight
Mostly clear, with a low around 74. South southwest wind around 5 mph, with gusts as high as 15 mph.
Thursday
A 30 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 91. Heat index values as high as 101. South wind around 5 mph becoming west in the afternoon. Winds could gust as high as 10 mph.
Thursday Night
A 40 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 72. East wind around 5 mph becoming south after midnight.
Friday
A 40 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 89. Calm wind becoming east southeast around 5 mph in the morning.
Friday Night
A 50 percent chance of showers and thunderstorms, mainly after 1am. Partly cloudy, with a low around 72.
Saturday
A 30 percent chance of showers and thunderstorms, mainly before 1pm. Mostly sunny, with a high near 86.
Saturday Night
A chance of showers after 1am. Partly cloudy, with a low around 68.
Sunday
Mostly sunny, with a high near 84.
Sunday Night
Partly cloudy, with a low around 65.
Labor Day
Mostly sunny, with a high near 82.
Monday Night
Mostly cloudy, with a low around 64.
Tuesday
Partly sunny, with a high near 83.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Manhattan IL
 41.43°N 88°W
Last Update:
5:56 am CDT Sep 2, 2026
Forecast Valid:
6am CDT Sep 2, 2026-6pm CDT Sep 8, 2026
 
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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