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

Joliet Regional Airport (KJOT)

Lat: 41.52°NLon: 88.18°WElev: 572ft.

Mostly Cloudy

55°F

13°C

Humidity 57%
Wind Speed Calm
Barometer 29.95 in
Dewpoint 40°F (4°C)
Visibility 10.00 mi
Last update 15 May 3:55 am CDT
Extended Forecast for

Manhattan IL

  • Today

    Today: A 20 percent chance of showers before 8am. Cloudy, then gradually becoming mostly sunny, with a high near 72. South wind 10 to 15 mph, with gusts as high as 30 mph.

    High: 72 °F

    Slight Chance
    Showers then
    Mostly Sunny

  • Tonight

    Tonight: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 4am. Partly cloudy, with a low around 58. South southeast wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 58 °F

    Partly Cloudy
    then Showers
    Likely

  • Saturday

    Saturday: A chance of showers and thunderstorms before 11am, then a slight chance of showers between 11am and 1pm, then a slight chance of showers and thunderstorms after 1pm. Cloudy through mid morning, then becoming mostly sunny, with a high near 81. West southwest wind around 10 mph, with gusts as high as 15 mph. Chance of precipitation is 40%.

    High: 81 °F

    Chance
    T-storms

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 60. South wind around 5 mph, with gusts as high as 10 mph. Chance of precipitation is 40%.

    Low: 60 °F

    Chance
    Showers

  • Sunday

    Sunday: Mostly sunny, with a high near 85. Breezy, with a south wind 10 to 15 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph.

    High: 85 °F

    Partly Sunny
    then Mostly
    Sunny and
    Breezy

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 65.

    Low: 65 °F

    Mostly Clear

  • Monday

    Monday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Mostly sunny, with a high near 84. Breezy. Chance of precipitation is 70%.

    High: 84 °F

    Breezy.
    Chance
    T-storms then
    Showers
    Likely

  • Monday Night

    Monday Night: Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 66. Breezy.

    Low: 66 °F

    Showers
    Likely and
    Breezy

  • Tuesday

    Tuesday: A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 84. Breezy.

    High: 84 °F

    Showers
    Likely and
    Breezy

Detailed Forecast

Today
A 20 percent chance of showers before 8am. Cloudy, then gradually becoming mostly sunny, with a high near 72. South wind 10 to 15 mph, with gusts as high as 30 mph.
Tonight
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 4am. Partly cloudy, with a low around 58. South southeast wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday
A chance of showers and thunderstorms before 11am, then a slight chance of showers between 11am and 1pm, then a slight chance of showers and thunderstorms after 1pm. Cloudy through mid morning, then becoming mostly sunny, with a high near 81. West southwest wind around 10 mph, with gusts as high as 15 mph. Chance of precipitation is 40%.
Saturday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 60. South wind around 5 mph, with gusts as high as 10 mph. Chance of precipitation is 40%.
Sunday
Mostly sunny, with a high near 85. Breezy, with a south wind 10 to 15 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph.
Sunday Night
Mostly clear, with a low around 65.
Monday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Mostly sunny, with a high near 84. Breezy. Chance of precipitation is 70%.
Monday Night
Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 66. Breezy.
Tuesday
A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 84. Breezy.
Tuesday Night
Showers likely, mainly before 1am. Mostly cloudy, with a low around 55.
Wednesday
Partly sunny, with a high near 70.
Wednesday Night
Partly cloudy, with a low around 48.
Thursday
Partly sunny, with a high near 68.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Manhattan IL
 41.43°N 87.97°W
Last Update:
3:46 am CDT May 15, 2026
Forecast Valid:
4am CDT May 15, 2026-6pm CDT May 21, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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