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.

Overcast

31°F

-1°C

Humidity 69%
Wind Speed E 6 mph
Barometer 30.36 in
Dewpoint 22°F (-6°C)
Visibility 10.00 mi
Wind Chill25°F (-4°C)
Last update 29 Nov 1:15 am CST
Extended Forecast for

Altamont IL

Winter Weather Advisory November 29, 06:00am until November 30, 06:00am
Click here for hazard details and duration
Winter Weather Advisory

  • Overnight

    Overnight: Snow likely, mainly after 5am. Cloudy, with a low around 27. East southeast wind 6 to 9 mph, with gusts as high as 20 mph. Chance of precipitation is 70%. Total nighttime snow accumulation of less than a half inch possible.

    Low: 27 °F

    Snow Likely

  • Saturday

    Saturday: Snow before 2pm, then rain and snow. Patchy blowing snow between 2pm and 4pm. High near 36. Southeast wind 11 to 18 mph, with gusts as high as 31 mph. Chance of precipitation is 100%. New snow accumulation of 3 to 7 inches possible.

    High: 36 °F

    Rain/Snow and
    Patchy
    Blowing Snow

  • Saturday Night

    Saturday Night: Rain and snow, becoming all rain after 9pm, then gradually ending. Low around 23. Breezy, with a south wind 17 to 22 mph becoming west after midnight. Winds could gust as high as 34 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.

    Low: 23 °F

    Breezy.
    Rain/Snow
    then Cloudy

  • Sunday

    Sunday: Mostly cloudy, with a high near 26. West northwest wind 10 to 18 mph, with gusts as high as 26 mph.

    High: 26 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 16. Northwest wind 5 to 8 mph becoming calm in the evening.

    Low: 16 °F

    Mostly Cloudy

  • Monday

    Monday: Cloudy, with a high near 29. Light and variable wind.

    High: 29 °F

    Cloudy

  • Monday Night

    Monday Night: Snow likely. Cloudy, with a low around 20. Light and variable wind. Chance of precipitation is 70%.

    Low: 20 °F

    Snow Likely

  • Tuesday

    Tuesday: Partly sunny, with a high near 27.

    High: 27 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 12.

    Low: 12 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Snow likely, mainly after 5am. Cloudy, with a low around 27. East southeast wind 6 to 9 mph, with gusts as high as 20 mph. Chance of precipitation is 70%. Total nighttime snow accumulation of less than a half inch possible.
Saturday
Snow before 2pm, then rain and snow. Patchy blowing snow between 2pm and 4pm. High near 36. Southeast wind 11 to 18 mph, with gusts as high as 31 mph. Chance of precipitation is 100%. New snow accumulation of 3 to 7 inches possible.
Saturday Night
Rain and snow, becoming all rain after 9pm, then gradually ending. Low around 23. Breezy, with a south wind 17 to 22 mph becoming west after midnight. Winds could gust as high as 34 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.
Sunday
Mostly cloudy, with a high near 26. West northwest wind 10 to 18 mph, with gusts as high as 26 mph.
Sunday Night
Mostly cloudy, with a low around 16. Northwest wind 5 to 8 mph becoming calm in the evening.
Monday
Cloudy, with a high near 29. Light and variable wind.
Monday Night
Snow likely. Cloudy, with a low around 20. Light and variable wind. Chance of precipitation is 70%.
Tuesday
Partly sunny, with a high near 27.
Tuesday Night
Mostly cloudy, with a low around 12.
Wednesday
Mostly sunny, with a high near 33.
Wednesday Night
Mostly cloudy, with a low around 13.
Thursday
Partly sunny, with a high near 24.
Thursday Night
Mostly cloudy, with a low around 12.
Friday
Mostly cloudy, with a high near 34.
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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:
1:28 am CST Nov 29, 2025
Forecast Valid:
1am CST Nov 29, 2025-6pm CST Dec 5, 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