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Hazardous Weather Conditions

Current conditions at

Marion - Williamson County Regional Airport (KMWA)

Lat: 37.77°NLon: 89.01°WElev: 486ft.

Fair

50°F

10°C

Humidity 82%
Wind Speed Vrbl 2 mph
Barometer 30.02 in
Dewpoint 45°F (7°C)
Visibility 10.00 mi
Last update 6 Nov 12:15 am CST
Extended Forecast for

3 Miles WNW Simpson IL

Freeze Watch November 7, 11:00pm until November 8, 08:00am
Frost Advisory November 6, 11:00pm until November 7, 08:00am
Click here for hazard details and duration
Freeze Watch
Frost Advisory

  • Overnight

    Overnight: Partly cloudy, with a steady temperature around 50. Calm wind becoming north northwest around 5 mph.

    Low: 50 °F

    Partly Cloudy

  • Friday

    Friday: Mostly cloudy, then gradually becoming sunny, with a high near 56. North wind 5 to 10 mph.

    High: 56 °F

    Decreasing
    Clouds

  • Friday Night

    Friday Night: Patchy frost after 1am. Otherwise, clear, with a low around 31. North wind around 5 mph becoming calm in the evening.

    Low: 31 °F

    Clear then
    Patchy Frost

  • Saturday

    Saturday: Widespread frost, mainly before 7am. Otherwise, sunny, with a high near 55. North wind around 5 mph becoming calm in the afternoon.

    High: 55 °F

    Frost then
    Sunny

  • Saturday Night

    Saturday Night: Widespread frost, mainly after 4am. Otherwise, mostly clear, with a low around 30. Calm wind.

    Low: 30 °F

    Frost

  • Sunday

    Sunday: Widespread frost, mainly before 7am. Otherwise, sunny, with a high near 61. Calm wind becoming west southwest around 5 mph.

    High: 61 °F

    Frost then
    Sunny

  • Sunday Night

    Sunday Night: Patchy frost after 3am. Otherwise, clear, with a low around 36. Calm wind.

    Low: 36 °F

    Clear then
    Patchy Frost

  • Monday

    Monday: Patchy frost before 7am. Otherwise, sunny, with a high near 66. Calm wind becoming southwest around 5 mph.

    High: 66 °F

    Patchy Frost
    then Sunny

  • Monday Night

    Monday Night: Clear, with a low around 40. Calm wind.

    Low: 40 °F

    Clear

Detailed Forecast

Overnight
Partly cloudy, with a steady temperature around 50. Calm wind becoming north northwest around 5 mph.
Friday
Mostly cloudy, then gradually becoming sunny, with a high near 56. North wind 5 to 10 mph.
Friday Night
Patchy frost after 1am. Otherwise, clear, with a low around 31. North wind around 5 mph becoming calm in the evening.
Saturday
Widespread frost, mainly before 7am. Otherwise, sunny, with a high near 55. North wind around 5 mph becoming calm in the afternoon.
Saturday Night
Widespread frost, mainly after 4am. Otherwise, mostly clear, with a low around 30. Calm wind.
Sunday
Widespread frost, mainly before 7am. Otherwise, sunny, with a high near 61. Calm wind becoming west southwest around 5 mph.
Sunday Night
Patchy frost after 3am. Otherwise, clear, with a low around 36. Calm wind.
Monday
Patchy frost before 7am. Otherwise, sunny, with a high near 66. Calm wind becoming southwest around 5 mph.
Monday Night
Clear, with a low around 40. Calm wind.
Tuesday
Sunny, with a high near 67. Calm wind becoming west southwest around 5 mph.
Tuesday Night
Clear, with a low around 42. Calm wind.
Veterans Day
A slight chance of showers. Sunny, with a high near 65. Calm wind becoming west around 5 mph.
Wednesday Night
A slight chance of showers. Partly cloudy, with a low around 44. Calm wind.
Thursday
A slight chance of showers. Mostly sunny, with a high near 61. Calm wind becoming north northwest 5 to 8 mph in the morning.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles WNW Simpson IL
 37.48°N 88.79°W
Last Update:
12:26 am CST Nov 6, 2026
Forecast Valid:
12am CST Nov 6, 2026-6pm CST Nov 12, 2026
 
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