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

70°F

21°C

Humidity 87%
Wind Speed S 10 G 20 mph
Barometer 29.77 in
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Last update 10 Mar 9:35 pm CDT
Extended Forecast for

5 Miles NNE Altamont IL

  • Tonight

    Tonight: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 3am. Low around 55. South southwest wind around 17 mph, with gusts as high as 29 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 55 °F

    Mostly Cloudy
    then Showers

  • Wednesday

    Wednesday: Rain and possibly a thunderstorm before 3pm, then a slight chance of rain between 3pm and 4pm. Temperature falling to around 47 by 5pm. Breezy, with a southwest wind 17 to 21 mph becoming northwest in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    High: 66 °F⇓

    Rain and
    Breezy

  • Wednesday Night

    Wednesday Night: Cloudy during the early evening, then gradual clearing, with a low around 30. Blustery, with a north northwest wind 10 to 20 mph, with gusts as high as 30 mph.

    Low: 30 °F

    Mostly Cloudy
    and Blustery
    then Partly
    Cloudy

  • Thursday

    Thursday: Increasing clouds, with a high near 50. Northwest wind 5 to 9 mph becoming southwest in the afternoon. Winds could gust as high as 15 mph.

    High: 50 °F

    Increasing
    Clouds

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 40. Breezy, with a south wind 8 to 13 mph increasing to 17 to 22 mph after midnight. Winds could gust as high as 32 mph.

    Low: 40 °F

    Mostly Cloudy
    then Mostly
    Cloudy and
    Breezy

  • Friday

    Friday: Partly sunny, with a high near 58. Breezy, with a southwest wind 14 to 21 mph becoming west northwest in the afternoon. Winds could gust as high as 30 mph.

    High: 58 °F

    Partly Sunny
    and Breezy

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 35. Northwest wind around 6 mph becoming east northeast after midnight.

    Low: 35 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 60.

    High: 60 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 47.

    Low: 47 °F

    Mostly Cloudy

Detailed Forecast

Tonight
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 3am. Low around 55. South southwest wind around 17 mph, with gusts as high as 29 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday
Rain and possibly a thunderstorm before 3pm, then a slight chance of rain between 3pm and 4pm. Temperature falling to around 47 by 5pm. Breezy, with a southwest wind 17 to 21 mph becoming northwest in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday Night
Cloudy during the early evening, then gradual clearing, with a low around 30. Blustery, with a north northwest wind 10 to 20 mph, with gusts as high as 30 mph.
Thursday
Increasing clouds, with a high near 50. Northwest wind 5 to 9 mph becoming southwest in the afternoon. Winds could gust as high as 15 mph.
Thursday Night
Mostly cloudy, with a low around 40. Breezy, with a south wind 8 to 13 mph increasing to 17 to 22 mph after midnight. Winds could gust as high as 32 mph.
Friday
Partly sunny, with a high near 58. Breezy, with a southwest wind 14 to 21 mph becoming west northwest in the afternoon. Winds could gust as high as 30 mph.
Friday Night
Mostly cloudy, with a low around 35. Northwest wind around 6 mph becoming east northeast after midnight.
Saturday
Partly sunny, with a high near 60.
Saturday Night
Mostly cloudy, with a low around 47.
Sunday
Rain. High near 61. Breezy. Chance of precipitation is 80%.
Sunday Night
A chance of rain and snow. Mostly cloudy, with a low around 20. Blustery.
Monday
Mostly sunny, with a high near 31.
Monday Night
Partly cloudy, with a low around 15.
Tuesday
Mostly sunny, with a high near 38.
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles NNE Altamont IL
 39.12°N 88.7°W (Elev. 614 ft)
Last Update:
9:26 pm CDT Mar 10, 2026
Forecast Valid:
9pm CDT Mar 10, 2026-6pm CDT Mar 17, 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