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

Effingham, Effingham County Memorial Airport (K1H2)

Lat: 39.07°NLon: 88.53°WElev: 587ft.

Fog/Mist

40°F

4°C

Humidity 94%
Wind Speed Calm
Barometer 29.96 in
Dewpoint 38°F (3°C)
Visibility 4.00 mi
Last update 11 Nov 4:35 am CST
Extended Forecast for

Altamont IL

  • Veterans Day

    Veterans Day: Patchy fog before 7am. Otherwise, mostly sunny, with a high near 68. Light and variable wind becoming west 11 to 16 mph in the morning. Winds could gust as high as 25 mph.

    High: 68 °F

    Patchy Fog
    then Partly
    Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 41. Northwest wind 8 to 15 mph, with gusts as high as 25 mph.

    Low: 41 °F

    Mostly Cloudy

  • Thursday

    Thursday: A 20 percent chance of showers after 10am. Mostly cloudy, with a high near 48. North northwest wind 9 to 17 mph, with gusts as high as 25 mph.

    High: 48 °F

    Slight Chance
    Showers

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 31. North northwest wind 8 to 13 mph, with gusts as high as 21 mph.

    Low: 31 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 43. North northwest wind 7 to 13 mph, with gusts as high as 18 mph.

    High: 43 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 25. North northwest wind around 5 mph becoming calm in the evening.

    Low: 25 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 46. Light north wind.

    High: 46 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 24.

    Low: 24 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 50.

    High: 50 °F

    Sunny

Detailed Forecast

Veterans Day
Patchy fog before 7am. Otherwise, mostly sunny, with a high near 68. Light and variable wind becoming west 11 to 16 mph in the morning. Winds could gust as high as 25 mph.
Tonight
Mostly cloudy, with a low around 41. Northwest wind 8 to 15 mph, with gusts as high as 25 mph.
Thursday
A 20 percent chance of showers after 10am. Mostly cloudy, with a high near 48. North northwest wind 9 to 17 mph, with gusts as high as 25 mph.
Thursday Night
Partly cloudy, with a low around 31. North northwest wind 8 to 13 mph, with gusts as high as 21 mph.
Friday
Sunny, with a high near 43. North northwest wind 7 to 13 mph, with gusts as high as 18 mph.
Friday Night
Mostly clear, with a low around 25. North northwest wind around 5 mph becoming calm in the evening.
Saturday
Sunny, with a high near 46. Light north wind.
Saturday Night
Mostly clear, with a low around 24.
Sunday
Sunny, with a high near 50.
Sunday Night
Partly cloudy, with a low around 27.
Monday
Sunny, with a high near 51.
Monday Night
Mostly clear, with a low around 27.
Tuesday
Sunny, with a high near 53.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Altamont IL
 39.06°N 88.76°W (Elev. 636 ft)
Last Update:
3:16 am CST Nov 11, 2026
Forecast Valid:
4am CST Nov 11, 2026-6pm CST Nov 17, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation