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.

N/A

Humidity NA
Wind Speed NA
Barometer NA
Dewpoint N/A
Visibility NA
Last update *** Not a current observation ***
Extended Forecast for

Gorham IL

  • Today

    Today: Patchy fog before 8am. Otherwise, sunny, with a high near 84. North northeast wind 3 to 5 mph.

    High: 84 °F

    Patchy Fog
    then Sunny

  • Tonight

    Tonight: Patchy fog after 4am. Otherwise, mostly clear, with a low around 64. Light east wind.

    Low: 64 °F

    Mostly Clear
    then Patchy
    Fog

  • Tuesday

    Tuesday: Areas of fog before 9am. Otherwise, sunny, with a high near 87. Calm wind.

    High: 87 °F

    Areas Fog
    then Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 65. Calm wind.

    Low: 65 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 89. Calm wind.

    High: 89 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 69. Light south wind.

    Low: 69 °F

    Mostly Clear

  • Thursday

    Thursday: A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 88. South wind 3 to 5 mph.

    High: 88 °F

    Slight Chance
    T-storms

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Partly cloudy, with a low around 70. Light south southwest wind.

    Low: 70 °F

    Chance
    T-storms then
    Showers
    Likely

  • Friday

    Friday: A chance of showers and thunderstorms. Partly sunny, with a high near 87. Light southwest wind.

    High: 87 °F

    Chance
    T-storms

Detailed Forecast

Today
Patchy fog before 8am. Otherwise, sunny, with a high near 84. North northeast wind 3 to 5 mph.
Tonight
Patchy fog after 4am. Otherwise, mostly clear, with a low around 64. Light east wind.
Tuesday
Areas of fog before 9am. Otherwise, sunny, with a high near 87. Calm wind.
Tuesday Night
Mostly clear, with a low around 65. Calm wind.
Wednesday
Sunny, with a high near 89. Calm wind.
Wednesday Night
Mostly clear, with a low around 69. Light south wind.
Thursday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 88. South wind 3 to 5 mph.
Thursday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Partly cloudy, with a low around 70. Light south southwest wind.
Friday
A chance of showers and thunderstorms. Partly sunny, with a high near 87. Light southwest wind.
Friday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 70. Calm wind.
Saturday
A chance of showers and thunderstorms. Mostly sunny, with a high near 88. Calm wind becoming south southwest around 5 mph in the afternoon.
Saturday Night
Partly cloudy, with a low around 71. Calm wind.
Sunday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 90. Calm wind becoming south southwest 5 to 7 mph in the morning.
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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:
4:31 am CDT Aug 3, 2026
Forecast Valid:
7am CDT Aug 3, 2026-6pm CDT Aug 9, 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