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

49°F

9°C

Humidity 65%
Wind Speed E 10 mph
Barometer 29.76 in
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Wind Chill45°F (7°C)
Last update 15 Mar 1:55 am CDT
Extended Forecast for

Mason IL

Wind Advisory March 15, 10:00am until March 16, 07:00am
Click here for hazard details and duration
Wind Advisory

  • Overnight

    Overnight: Mostly cloudy, with a low around 49. South southeast wind 10 to 13 mph, with gusts as high as 22 mph.

    Low: 49 °F

    Mostly Cloudy

  • Sunday

    Sunday: A slight chance of rain before 1pm, then a chance of rain and thunderstorms between 1pm and 4pm, then rain likely and possibly a thunderstorm after 4pm. Mostly cloudy, with a high near 67. Breezy, with a south wind 18 to 23 mph increasing to 24 to 29 mph in the afternoon. Winds could gust as high as 44 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

    High: 67 °F

    Breezy.
    Slight Chance
    Rain then
    Rain Likely

  • Sunday Night

    Sunday Night: Rain and snow before 1am, then a slight chance of snow after 4am. Some thunder is also possible. Low around 23. Blustery, with a west wind 24 to 28 mph, with gusts as high as 41 mph. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.

    Low: 23 °F

    Rain and
    Breezy then
    Chance Snow
    and Blustery

  • Monday

    Monday: Mostly cloudy, with a high near 28. Blustery, with a west northwest wind 24 to 28 mph, with gusts as high as 40 mph.

    High: 28 °F

    Mostly Cloudy
    and Blustery

  • Monday Night

    Monday Night: Partly cloudy, with a low around 13. Blustery, with a west northwest wind 13 to 20 mph, with gusts as high as 28 mph.

    Low: 13 °F

    Mostly Cloudy
    and Blustery
    then Partly
    Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 32. Northwest wind 6 to 10 mph, with gusts as high as 16 mph.

    High: 32 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A 40 percent chance of snow after 1am. Mostly cloudy, with a low around 25. Light south wind increasing to 9 to 14 mph in the evening. Winds could gust as high as 22 mph.

    Low: 25 °F

    Mostly Cloudy
    then Chance
    Snow

  • Wednesday

    Wednesday: Partly sunny, with a high near 55.

    High: 55 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 38.

    Low: 38 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 49. South southeast wind 10 to 13 mph, with gusts as high as 22 mph.
Sunday
A slight chance of rain before 1pm, then a chance of rain and thunderstorms between 1pm and 4pm, then rain likely and possibly a thunderstorm after 4pm. Mostly cloudy, with a high near 67. Breezy, with a south wind 18 to 23 mph increasing to 24 to 29 mph in the afternoon. Winds could gust as high as 44 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Sunday Night
Rain and snow before 1am, then a slight chance of snow after 4am. Some thunder is also possible. Low around 23. Blustery, with a west wind 24 to 28 mph, with gusts as high as 41 mph. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.
Monday
Mostly cloudy, with a high near 28. Blustery, with a west northwest wind 24 to 28 mph, with gusts as high as 40 mph.
Monday Night
Partly cloudy, with a low around 13. Blustery, with a west northwest wind 13 to 20 mph, with gusts as high as 28 mph.
Tuesday
Mostly sunny, with a high near 32. Northwest wind 6 to 10 mph, with gusts as high as 16 mph.
Tuesday Night
A 40 percent chance of snow after 1am. Mostly cloudy, with a low around 25. Light south wind increasing to 9 to 14 mph in the evening. Winds could gust as high as 22 mph.
Wednesday
Partly sunny, with a high near 55.
Wednesday Night
Partly cloudy, with a low around 38.
Thursday
Mostly sunny, with a high near 64.
Thursday Night
Partly cloudy, with a low around 41.
Friday
Mostly sunny, with a high near 69.
Friday Night
Mostly cloudy, with a low around 46.
Saturday
Partly sunny, with a high near 62.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Mason IL
 38.94°N 88.62°W (Elev. 564 ft)
Last Update:
1:26 am CDT Mar 15, 2026
Forecast Valid:
2am CDT Mar 15, 2026-6pm CDT Mar 21, 2026
 
Forecast Discussion
 
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Additional Resources

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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