National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Marion - Williamson County Regional Airport (KMWA)

Lat: 37.77°NLon: 89.01°WElev: 486ft.

Partly Cloudy

43°F

6°C

Humidity 80%
Wind Speed Calm
Barometer 30.05 in
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Last update 10 Jan 1:15 am CST
Extended Forecast for

3 Miles NW Tunnel Hill IL

  • Overnight

    Overnight: A 20 percent chance of showers after 4am. Mostly cloudy, with a steady temperature around 46. Calm wind.

    Low: 46 °F

    Slight Chance
    Showers

  • Saturday

    Saturday: A 30 percent chance of showers, mainly before 10am. Cloudy, then gradual clearing during the afternoon, with a temperature rising to near 46 by 10am, then falling to around 42 during the remainder of the day. Light northwest wind increasing to 9 to 14 mph in the morning. Winds could gust as high as 24 mph.

    High: 46 °F⇓

    Chance
    Showers then
    Mostly Sunny

  • Saturday Night

    Saturday Night: A slight chance of showers between 9pm and midnight. Mostly clear, with a low around 27. West northwest wind 5 to 11 mph, with gusts as high as 23 mph. Chance of precipitation is 20%.

    Low: 27 °F

    Slight Chance
    Showers then
    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 38. Northwest wind 6 to 11 mph becoming light west northwest in the afternoon. Winds could gust as high as 24 mph.

    High: 38 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 25. Calm wind becoming south southwest around 5 mph after midnight.

    Low: 25 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 48. South southwest wind 6 to 10 mph, with gusts as high as 18 mph.

    High: 48 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 36. South southwest wind 6 to 8 mph, with gusts as high as 18 mph.

    Low: 36 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 56. Southwest wind 9 to 14 mph, with gusts as high as 24 mph.

    High: 56 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 40. West southwest wind 5 to 9 mph.

    Low: 40 °F

    Mostly Cloudy

Detailed Forecast

Overnight
A 20 percent chance of showers after 4am. Mostly cloudy, with a steady temperature around 46. Calm wind.
Saturday
A 30 percent chance of showers, mainly before 10am. Cloudy, then gradual clearing during the afternoon, with a temperature rising to near 46 by 10am, then falling to around 42 during the remainder of the day. Light northwest wind increasing to 9 to 14 mph in the morning. Winds could gust as high as 24 mph.
Saturday Night
A slight chance of showers between 9pm and midnight. Mostly clear, with a low around 27. West northwest wind 5 to 11 mph, with gusts as high as 23 mph. Chance of precipitation is 20%.
Sunday
Sunny, with a high near 38. Northwest wind 6 to 11 mph becoming light west northwest in the afternoon. Winds could gust as high as 24 mph.
Sunday Night
Mostly clear, with a low around 25. Calm wind becoming south southwest around 5 mph after midnight.
Monday
Sunny, with a high near 48. South southwest wind 6 to 10 mph, with gusts as high as 18 mph.
Monday Night
Mostly clear, with a low around 36. South southwest wind 6 to 8 mph, with gusts as high as 18 mph.
Tuesday
Mostly sunny, with a high near 56. Southwest wind 9 to 14 mph, with gusts as high as 24 mph.
Tuesday Night
Mostly cloudy, with a low around 40. West southwest wind 5 to 9 mph.
Wednesday
A slight chance of showers after noon. Mostly cloudy, with a high near 46. North northwest wind 6 to 10 mph, with gusts as high as 20 mph.
Wednesday Night
Mostly cloudy, with a low around 23. North wind 6 to 8 mph.
Thursday
Mostly sunny, with a high near 36. North wind 5 to 7 mph becoming light and variable in the afternoon.
Thursday Night
Mostly cloudy, with a low around 26. South southwest wind 3 to 6 mph.
Friday
Partly sunny, with a high near 45. West southwest wind 6 to 10 mph, with gusts as high as 18 mph.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NW Tunnel Hill IL
 37.6°N 88.9°W
Last Update:
12:31 am CST Jan 10, 2026
Forecast Valid:
1am CST Jan 10, 2026-6pm CST Jan 16, 2026
 
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Additional Resources

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Chance of Precipitation