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

84°F

29°C

Humidity 66%
Wind Speed NA
Barometer 30.10 in
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Heat Index89°F (32°C)
Last update 12 Jul 1:52 pm CDT
Extended Forecast for

Gorham IL

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 84. North wind around 9 mph.

    High: 84 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 68. North wind 5 to 8 mph.

    Low: 68 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 85. North northeast wind 5 to 10 mph.

    High: 85 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 68. North northeast wind 3 to 7 mph.

    Low: 68 °F

    Mostly Clear

  • Tuesday

    Tuesday: A 20 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 87. East northeast wind 3 to 8 mph.

    High: 87 °F

    Sunny then
    Slight Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 70. East northeast wind around 5 mph becoming calm in the evening.

    Low: 70 °F

    Mostly Clear

  • Wednesday

    Wednesday: A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 88. Light northeast wind.

    High: 88 °F

    Sunny then
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 71. Calm wind.

    Low: 71 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 90. Light and variable wind.

    High: 90 °F

    Sunny

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 84. North wind around 9 mph.
Tonight
Mostly clear, with a low around 68. North wind 5 to 8 mph.
Monday
Sunny, with a high near 85. North northeast wind 5 to 10 mph.
Monday Night
Mostly clear, with a low around 68. North northeast wind 3 to 7 mph.
Tuesday
A 20 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 87. East northeast wind 3 to 8 mph.
Tuesday Night
Mostly clear, with a low around 70. East northeast wind around 5 mph becoming calm in the evening.
Wednesday
A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 88. Light northeast wind.
Wednesday Night
Mostly clear, with a low around 71. Calm wind.
Thursday
Sunny, with a high near 90. Light and variable wind.
Thursday Night
Mostly clear, with a low around 72. Calm wind.
Friday
Sunny, with a high near 91. Calm wind becoming west around 5 mph in the afternoon.
Friday Night
Mostly clear, with a low around 73. South wind around 5 mph becoming calm in the evening.
Saturday
Sunny, with a high near 91. West southwest wind 3 to 6 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Gorham IL
 37.71°N 89.48°W
Last Update:
1:26 pm CDT Jul 12, 2026
Forecast Valid:
2pm CDT Jul 12, 2026-6pm CDT Jul 18, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation