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

Hazardous Weather Conditions

Current conditions at

Southern Illinois Airport (KMDH)

Lat: 37.78°NLon: 89.25°WElev: 400ft.

Mostly Cloudy

73°F

23°C

Humidity 62%
Wind Speed S 7 mph
Barometer 29.90 in (1012.2 mb)
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Last update 15 Apr 9:52 pm CDT
Extended Forecast for

6 Miles NNE Gorham IL

  • Tonight

    Tonight: Showers and thunderstorms likely before 3am, then showers and possibly a thunderstorm between 3am and 4am, then showers likely after 4am. Low around 62. Southwest wind 8 to 10 mph. Chance of precipitation is 80%.

    Low: 62 °F

    Chance
    T-storms then
    Showers

  • Thursday

    Thursday: A chance of showers before 11am, then a slight chance of showers and thunderstorms after 4pm. Mostly cloudy, then gradually becoming sunny, with a high near 80. Southwest wind 7 to 9 mph. Chance of precipitation is 30%.

    High: 80 °F

    Chance
    Showers then
    Slight Chance
    T-storms

  • Thursday Night

    Thursday Night: A 30 percent chance of showers and thunderstorms before 7pm. Mostly clear, with a low around 59. South wind 3 to 6 mph.

    Low: 59 °F

    Chance
    T-storms then
    Mostly Clear

  • Friday

    Friday: A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 84. South wind 5 to 13 mph, with gusts as high as 22 mph.

    High: 84 °F

    Mostly Sunny
    then Chance
    T-storms

  • Friday Night

    Friday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 57. South wind 11 to 13 mph, with gusts as high as 21 mph. Chance of precipitation is 60%.

    Low: 57 °F

    Chance
    Showers then
    Showers
    Likely

  • Saturday

    Saturday: Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 69. Southwest wind 11 to 14 mph becoming northwest in the afternoon. Winds could gust as high as 23 mph. Chance of precipitation is 60%.

    High: 69 °F

    Showers
    Likely

  • Saturday Night

    Saturday Night: A 20 percent chance of showers before 1am. Partly cloudy, with a low around 40. Northwest wind 6 to 11 mph, with gusts as high as 18 mph.

    Low: 40 °F

    Slight Chance
    Showers

  • Sunday

    Sunday: Sunny, with a high near 65. West northwest wind 5 to 9 mph, with gusts as high as 18 mph.

    High: 65 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 42. North northwest wind 5 to 7 mph becoming south southeast after midnight.

    Low: 42 °F

    Clear

Detailed Forecast

Tonight
Showers and thunderstorms likely before 3am, then showers and possibly a thunderstorm between 3am and 4am, then showers likely after 4am. Low around 62. Southwest wind 8 to 10 mph. Chance of precipitation is 80%.
Thursday
A chance of showers before 11am, then a slight chance of showers and thunderstorms after 4pm. Mostly cloudy, then gradually becoming sunny, with a high near 80. Southwest wind 7 to 9 mph. Chance of precipitation is 30%.
Thursday Night
A 30 percent chance of showers and thunderstorms before 7pm. Mostly clear, with a low around 59. South wind 3 to 6 mph.
Friday
A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 84. South wind 5 to 13 mph, with gusts as high as 22 mph.
Friday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 57. South wind 11 to 13 mph, with gusts as high as 21 mph. Chance of precipitation is 60%.
Saturday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 69. Southwest wind 11 to 14 mph becoming northwest in the afternoon. Winds could gust as high as 23 mph. Chance of precipitation is 60%.
Saturday Night
A 20 percent chance of showers before 1am. Partly cloudy, with a low around 40. Northwest wind 6 to 11 mph, with gusts as high as 18 mph.
Sunday
Sunny, with a high near 65. West northwest wind 5 to 9 mph, with gusts as high as 18 mph.
Sunday Night
Clear, with a low around 42. North northwest wind 5 to 7 mph becoming south southeast after midnight.
Monday
Sunny, with a high near 71. South wind 5 to 8 mph.
Monday Night
Mostly clear, with a low around 49. South wind around 7 mph.
Tuesday
Sunny, with a high near 75. South southwest wind 7 to 11 mph, with gusts as high as 21 mph.
Tuesday Night
Partly cloudy, with a low around 55. South southwest wind 7 to 9 mph.
Wednesday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 77. South southwest wind 7 to 10 mph, with gusts as high as 18 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
6 Miles NNE Gorham IL
 37.8°N 89.45°W
Last Update:
10:17 pm CDT Apr 15, 2026
Forecast Valid:
10pm CDT Apr 15, 2026-6pm CDT Apr 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