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

Hazardous Weather Conditions

Current conditions at

Morris Muni-James R Washburn Field Airport (KC09)

Lat: 41.43°NLon: 88.42°WElev: 584ft.

Fair

77°F

25°C

Humidity 44%
Wind Speed S 16 mph
Barometer 29.83 in
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 15 May 4:21 pm CDT
Extended Forecast for

Mazon IL

  • Tonight

    Tonight: A chance of showers and thunderstorms between 2am and 3am, then periods of showers and possibly a thunderstorm after 3am. Low around 62. South wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 62 °F

    Mostly Clear
    then Showers

  • Saturday

    Saturday: Scattered showers and thunderstorms, mainly between 1pm and 5pm. Cloudy, then gradually becoming mostly sunny, with a high near 86. Southeast wind 10 to 15 mph becoming southwest in the morning. Winds could gust as high as 20 mph. Chance of precipitation is 40%.

    High: 86 °F

    Chance
    T-storms then
    Scattered
    Showers

  • Saturday Night

    Saturday Night: A 40 percent chance of showers and thunderstorms, mainly after 8pm. Mostly cloudy, with a low around 61. South wind around 5 mph.

    Low: 61 °F

    Chance
    Showers

  • Sunday

    Sunday: Mostly sunny, with a high near 88. 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: 88 °F

    Partly Sunny
    then Mostly
    Sunny and
    Breezy

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 67. South wind around 15 mph, with gusts as high as 30 mph.

    Low: 67 °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 88. Breezy. Chance of precipitation is 70%.

    High: 88 °F

    Breezy.
    Chance
    T-storms then
    Showers
    Likely

  • Monday Night

    Monday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 67. Chance of precipitation is 60%.

    Low: 67 °F

    Showers
    Likely

  • Tuesday

    Tuesday: A chance of showers, then showers and possibly a thunderstorm after 1pm. Partly sunny, with a high near 81. Breezy.

    High: 81 °F

    Showers and
    Breezy

  • Tuesday Night

    Tuesday Night: A chance of showers before 1am. Mostly cloudy, with a low around 54.

    Low: 54 °F

    Chance
    Showers

Detailed Forecast

Tonight
A chance of showers and thunderstorms between 2am and 3am, then periods of showers and possibly a thunderstorm after 3am. Low around 62. South wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday
Scattered showers and thunderstorms, mainly between 1pm and 5pm. Cloudy, then gradually becoming mostly sunny, with a high near 86. Southeast wind 10 to 15 mph becoming southwest in the morning. Winds could gust as high as 20 mph. Chance of precipitation is 40%.
Saturday Night
A 40 percent chance of showers and thunderstorms, mainly after 8pm. Mostly cloudy, with a low around 61. South wind around 5 mph.
Sunday
Mostly sunny, with a high near 88. 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 67. South wind around 15 mph, with gusts as high as 30 mph.
Monday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Mostly sunny, with a high near 88. Breezy. Chance of precipitation is 70%.
Monday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 67. Chance of precipitation is 60%.
Tuesday
A chance of showers, then showers and possibly a thunderstorm after 1pm. Partly sunny, with a high near 81. Breezy.
Tuesday Night
A chance of showers before 1am. Mostly cloudy, with a low around 54.
Wednesday
Mostly sunny, with a high near 69.
Wednesday Night
Partly cloudy, with a low around 48.
Thursday
Mostly sunny, with a high near 71.
Thursday Night
Partly cloudy, with a low around 50.
Friday
Mostly sunny, with a high near 76.
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ABOUT THIS FORECAST

 
Point Forecast:
Mazon IL
 41.25°N 88.42°W
Last Update:
1:45 pm CDT May 15, 2026
Forecast Valid:
4pm CDT May 15, 2026-6pm CDT May 22, 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