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.

Fog/Mist

55°F

13°C

Humidity 100%
Wind Speed E 5 mph
Barometer 29.63 in
Dewpoint 55°F (13°C)
Visibility 2.50 mi
Wind Chill54°F (12°C)
Last update 19 Feb 7:35 am CST
Extended Forecast for

Altamont IL

  • Today

    Today: Showers and thunderstorms, mainly before 4pm, then showers likely and possibly a thunderstorm after 4pm. Areas of fog before 10am. High near 66. South southeast wind 6 to 10 mph, with gusts as high as 17 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    High: 66 °F

    Chance
    T-storms and
    Areas Fog
    then T-storms

  • Tonight

    Tonight: A 20 percent chance of showers and thunderstorms before 9pm. Partly cloudy, with a low around 35. Breezy, with a west wind 10 to 15 mph increasing to 16 to 21 mph after midnight. Winds could gust as high as 36 mph.

    Low: 35 °F

    Slight Chance
    T-storms then
    Mostly Clear
    and Breezy

  • Friday

    Friday: Mostly sunny, with a high near 45. Breezy, with a west wind 16 to 21 mph decreasing to 8 to 13 mph in the afternoon. Winds could gust as high as 32 mph.

    High: 45 °F

    Mostly Sunny
    and Breezy
    then Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 27. Northwest wind 3 to 6 mph.

    Low: 27 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 43. North northwest wind 5 to 10 mph, with gusts as high as 15 mph.

    High: 43 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 23. Northwest wind 7 to 13 mph, with gusts as high as 22 mph.

    Low: 23 °F

    Mostly Clear

  • Sunday

    Sunday: Partly sunny, with a high near 35. Northwest wind 14 to 18 mph, with gusts as high as 26 mph.

    High: 35 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 18.

    Low: 18 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 34.

    High: 34 °F

    Sunny

Detailed Forecast

Today
Showers and thunderstorms, mainly before 4pm, then showers likely and possibly a thunderstorm after 4pm. Areas of fog before 10am. High near 66. South southeast wind 6 to 10 mph, with gusts as high as 17 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Tonight
A 20 percent chance of showers and thunderstorms before 9pm. Partly cloudy, with a low around 35. Breezy, with a west wind 10 to 15 mph increasing to 16 to 21 mph after midnight. Winds could gust as high as 36 mph.
Friday
Mostly sunny, with a high near 45. Breezy, with a west wind 16 to 21 mph decreasing to 8 to 13 mph in the afternoon. Winds could gust as high as 32 mph.
Friday Night
Partly cloudy, with a low around 27. Northwest wind 3 to 6 mph.
Saturday
Mostly sunny, with a high near 43. North northwest wind 5 to 10 mph, with gusts as high as 15 mph.
Saturday Night
Mostly clear, with a low around 23. Northwest wind 7 to 13 mph, with gusts as high as 22 mph.
Sunday
Partly sunny, with a high near 35. Northwest wind 14 to 18 mph, with gusts as high as 26 mph.
Sunday Night
Mostly clear, with a low around 18.
Monday
Sunny, with a high near 34.
Monday Night
Mostly clear, with a low around 17.
Tuesday
Mostly sunny, with a high near 43.
Tuesday Night
Mostly cloudy, with a low around 34.
Wednesday
Mostly cloudy, with a high near 54.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Altamont IL
 39.06°N 88.73°W (Elev. 600 ft)
Last Update:
6:36 am CST Feb 19, 2026
Forecast Valid:
7am CST Feb 19, 2026-6pm CST Feb 25, 2026
 
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Additional Resources

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Chance of Precipitation