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.

Fair

50°F

10°C

Humidity 100%
Wind Speed SW 5 mph
Barometer 29.88 in
Dewpoint 50°F (10°C)
Visibility 10.00 mi
Wind Chill48°F (9°C)
Last update 5 Nov 12:55 am CST
Extended Forecast for

2 Miles N Simpson IL

  • Overnight

    Overnight: Patchy fog. Otherwise, mostly clear, with a low around 47. Calm wind.

    Low: 47 °F

    Patchy Fog

  • Thursday

    Thursday: Patchy fog before 8am. Otherwise, sunny, with a high near 65. Calm wind becoming west 5 to 7 mph.

    High: 65 °F

    Patchy Fog
    then Sunny

  • Thursday Night

    Thursday Night: Increasing clouds, with a low around 45. Light northwest wind.

    Low: 45 °F

    Increasing
    Clouds

  • Friday

    Friday: Partly sunny, with a high near 57. Light north northwest wind becoming north 5 to 9 mph in the morning.

    High: 57 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 33. North wind around 5 mph becoming calm in the evening.

    Low: 33 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 55. Calm wind becoming north around 5 mph.

    High: 55 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 33. Calm wind.

    Low: 33 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 58. Light and variable wind.

    High: 58 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 35. Calm wind.

    Low: 35 °F

    Clear

Detailed Forecast

Overnight
Patchy fog. Otherwise, mostly clear, with a low around 47. Calm wind.
Thursday
Patchy fog before 8am. Otherwise, sunny, with a high near 65. Calm wind becoming west 5 to 7 mph.
Thursday Night
Increasing clouds, with a low around 45. Light northwest wind.
Friday
Partly sunny, with a high near 57. Light north northwest wind becoming north 5 to 9 mph in the morning.
Friday Night
Mostly clear, with a low around 33. North wind around 5 mph becoming calm in the evening.
Saturday
Sunny, with a high near 55. Calm wind becoming north around 5 mph.
Saturday Night
Mostly clear, with a low around 33. Calm wind.
Sunday
Sunny, with a high near 58. Light and variable wind.
Sunday Night
Clear, with a low around 35. Calm wind.
Monday
Sunny, with a high near 63. Light and variable wind.
Monday Night
Clear, with a low around 39. Calm wind.
Tuesday
Sunny, with a high near 65. Calm wind becoming west around 5 mph.
Tuesday Night
Mostly clear, with a low around 40. Calm wind.
Veterans Day
Sunny, with a high near 65. Calm wind becoming northwest around 5 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles N Simpson IL
 37.5°N 88.76°W
Last Update:
12:26 am CST Nov 5, 2026
Forecast Valid:
1am CST Nov 5, 2026-6pm CST Nov 11, 2026
 
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Additional Resources

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