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

Hazardous Weather Conditions

Current conditions at

Marion - Williamson County Regional Airport (KMWA)

Lat: 37.77°NLon: 89.01°WElev: 486ft.

Fog/Mist

69°F

21°C

Humidity 98%
Wind Speed Calm
Barometer 29.98 in
Dewpoint 69°F (21°C)
Visibility 5.00 mi
Last update 27 Aug 3:15 am CDT
Extended Forecast for

Valier IL

  • Overnight

    Overnight: Mostly clear, with a low around 67. Calm wind.

    Low: 67 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 89. Calm wind becoming north northwest 5 to 9 mph in the morning.

    High: 89 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 65. North wind around 5 mph becoming calm in the evening.

    Low: 65 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 89. Calm wind becoming north northeast 5 to 7 mph in the afternoon.

    High: 89 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 62. North northeast wind around 5 mph becoming calm in the evening.

    Low: 62 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 91. Light and variable wind.

    High: 91 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 66. Calm wind.

    Low: 66 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 96. Light south wind becoming south southwest 9 to 14 mph in the morning.

    High: 96 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 72. South wind 5 to 8 mph.

    Low: 72 °F

    Mostly Clear

Detailed Forecast

Overnight
Mostly clear, with a low around 67. Calm wind.
Thursday
Sunny, with a high near 89. Calm wind becoming north northwest 5 to 9 mph in the morning.
Thursday Night
Mostly clear, with a low around 65. North wind around 5 mph becoming calm in the evening.
Friday
Sunny, with a high near 89. Calm wind becoming north northeast 5 to 7 mph in the afternoon.
Friday Night
Mostly clear, with a low around 62. North northeast wind around 5 mph becoming calm in the evening.
Saturday
Sunny, with a high near 91. Light and variable wind.
Saturday Night
Mostly clear, with a low around 66. Calm wind.
Sunday
Sunny, with a high near 96. Light south wind becoming south southwest 9 to 14 mph in the morning.
Sunday Night
Mostly clear, with a low around 72. South wind 5 to 8 mph.
Monday
Sunny and hot, with a high near 97. South southwest wind 6 to 13 mph.
Monday Night
Mostly clear, with a low around 74. South wind 5 to 9 mph.
Tuesday
Sunny and hot, with a high near 98. Southwest wind 5 to 10 mph.
Tuesday Night
Mostly clear, with a low around 75. South southwest wind 3 to 7 mph.
Wednesday
Sunny and hot, with a high near 98. Light south southwest wind becoming southwest 5 to 9 mph in the morning.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Valier IL
 38.03°N 89.04°W
Last Update:
2:05 am CDT Aug 27, 2026
Forecast Valid:
3am CDT Aug 27, 2026-6pm CDT Sep 2, 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