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 90%
Wind Speed SE 9 mph
Barometer 29.68 in
Dewpoint 67°F (19°C)
Visibility 10.00 mi
Last update 17 Jun 8:35 am CDT
Extended Forecast for

Mason IL

Wind Advisory June 17, 01:00pm until June 17, 07:00pm
Click here for hazard details and duration
Wind Advisory

  • Today

    Today: A 30 percent chance of showers and thunderstorms, mainly before 3pm. Mostly cloudy, then becoming sunny during the afternoon, with a high near 87. Breezy, with a south southwest wind 8 to 18 mph increasing to 19 to 29 mph in the afternoon. Winds could gust as high as 48 mph.

    High: 87 °F

    Chance
    T-storms and
    Breezy

  • Tonight

    Tonight: Showers and thunderstorms, mainly before midnight. Low around 67. Breezy, with a west southwest wind 19 to 24 mph decreasing to 9 to 14 mph after midnight. Winds could gust as high as 34 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 67 °F

    T-storms and
    Breezy then
    Chance
    T-storms

  • Thursday

    Thursday: Mostly sunny, with a high near 79. West northwest wind 8 to 10 mph, with gusts as high as 17 mph.

    High: 79 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 58. North northwest wind 5 to 7 mph becoming calm in the evening.

    Low: 58 °F

    Decreasing
    Clouds

  • Juneteenth

    Juneteenth: Sunny, with a high near 80. Calm wind becoming northwest 5 to 7 mph in the morning.

    High: 80 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 61. Light and variable wind.

    Low: 61 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 84. Calm wind becoming southwest around 6 mph in the morning.

    High: 84 °F

    Sunny

  • Saturday Night

    Saturday Night: A 30 percent chance of showers after 1am. Partly cloudy, with a low around 64.

    Low: 64 °F

    Partly Cloudy
    then Chance
    Showers

  • Sunday

    Sunday: Showers likely, with thunderstorms also possible after 1pm. Some of the storms could produce heavy rainfall. Partly sunny, with a high near 82. Chance of precipitation is 70%.

    High: 82 °F

    Heavy Rain

Detailed Forecast

Today
A 30 percent chance of showers and thunderstorms, mainly before 3pm. Mostly cloudy, then becoming sunny during the afternoon, with a high near 87. Breezy, with a south southwest wind 8 to 18 mph increasing to 19 to 29 mph in the afternoon. Winds could gust as high as 48 mph.
Tonight
Showers and thunderstorms, mainly before midnight. Low around 67. Breezy, with a west southwest wind 19 to 24 mph decreasing to 9 to 14 mph after midnight. Winds could gust as high as 34 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.
Thursday
Mostly sunny, with a high near 79. West northwest wind 8 to 10 mph, with gusts as high as 17 mph.
Thursday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 58. North northwest wind 5 to 7 mph becoming calm in the evening.
Juneteenth
Sunny, with a high near 80. Calm wind becoming northwest 5 to 7 mph in the morning.
Friday Night
Mostly clear, with a low around 61. Light and variable wind.
Saturday
Sunny, with a high near 84. Calm wind becoming southwest around 6 mph in the morning.
Saturday Night
A 30 percent chance of showers after 1am. Partly cloudy, with a low around 64.
Sunday
Showers likely, with thunderstorms also possible after 1pm. Some of the storms could produce heavy rainfall. Partly sunny, with a high near 82. Chance of precipitation is 70%.
Sunday Night
Showers and possibly a thunderstorm before 1am, then showers likely. Low around 66. Chance of precipitation is 80%.
Monday
A chance of showers. Partly sunny, with a high near 79.
Monday Night
Partly cloudy, with a low around 60.
Tuesday
Mostly sunny, with a high near 80.
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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:
8:16 am CDT Jun 17, 2026
Forecast Valid:
8am CDT Jun 17, 2026-6pm CDT Jun 23, 2026
 
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