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

Hazardous Weather Conditions

Current conditions at

Effingham, Effingham County Memorial Airport (K1H2)

Lat: 39.07°NLon: 88.53°WElev: 587ft.

Fair

68°F

20°C

Humidity 100%
Wind Speed Calm
Barometer 30.23 in
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Last update 6 Aug 12:35 am CDT
Extended Forecast for

Altamont IL

  • Overnight

    Overnight: Patchy fog after 2am. Otherwise, mostly clear, with a low around 65. Calm wind.

    Low: 65 °F

    Patchy Fog

  • Wednesday

    Wednesday: Patchy fog before 8am. Otherwise, mostly sunny, with a high near 86. Calm wind.

    High: 86 °F

    Patchy Fog
    then Mostly
    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 67. Calm wind.

    Low: 67 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 87. Calm wind.

    High: 87 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 67. Calm wind.

    Low: 67 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 88. Calm wind becoming south around 6 mph in the afternoon.

    High: 88 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 69. Light southeast wind.

    Low: 69 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 88.

    High: 88 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 70.

    Low: 70 °F

    Mostly Clear

Detailed Forecast

Overnight
Patchy fog after 2am. Otherwise, mostly clear, with a low around 65. Calm wind.
Wednesday
Patchy fog before 8am. Otherwise, mostly sunny, with a high near 86. Calm wind.
Wednesday Night
Mostly clear, with a low around 67. Calm wind.
Thursday
Sunny, with a high near 87. Calm wind.
Thursday Night
Mostly clear, with a low around 67. Calm wind.
Friday
Sunny, with a high near 88. Calm wind becoming south around 6 mph in the afternoon.
Friday Night
Mostly clear, with a low around 69. Light southeast wind.
Saturday
Sunny, with a high near 88.
Saturday Night
Mostly clear, with a low around 70.
Sunday
Sunny, with a high near 88.
Sunday Night
Mostly clear, with a low around 71.
Monday
A chance of showers and thunderstorms. Sunny, with a high near 88.
Monday Night
Partly cloudy, with a low around 71.
Tuesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 87.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Altamont IL
 39.06°N 88.76°W (Elev. 636 ft)
Last Update:
12:41 am CDT Aug 6, 2025
Forecast Valid:
12am CDT Aug 6, 2025-6pm CDT Aug 12, 2025
 
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