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.

A Few Clouds

81°F

27°C

Humidity 39%
Wind Speed NW 7 mph
Barometer 30.08 in
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Heat Index81°F (27°C)
Last update 23 Aug 12:45 pm CDT
Extended Forecast for

2 Miles SE Frankfort Heights IL

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 84. Northwest wind around 8 mph.

    High: 84 °F

    Mostly Sunny

  • Tonight

    Tonight: Patchy fog after 5am. Otherwise, partly cloudy, with a low around 58. Light north wind.

    Low: 58 °F

    Partly Cloudy
    then Patchy
    Fog

  • Monday

    Monday: Patchy fog before 8am. Otherwise, mostly sunny, with a high near 86. Light and variable wind.

    High: 86 °F

    Patchy Fog
    then Mostly
    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 62. Light east wind.

    Low: 62 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 88. Calm wind becoming east around 5 mph in the afternoon.

    High: 88 °F

    Sunny

  • Tuesday Night

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

    Low: 65 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 91. Calm wind becoming southwest around 6 mph in the afternoon.

    High: 91 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A slight chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 68. Calm wind.

    Low: 68 °F

    Slight Chance
    T-storms

  • Thursday

    Thursday: Sunny, with a high near 90. Calm wind becoming northwest 5 to 9 mph in the morning.

    High: 90 °F

    Sunny

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 84. Northwest wind around 8 mph.
Tonight
Patchy fog after 5am. Otherwise, partly cloudy, with a low around 58. Light north wind.
Monday
Patchy fog before 8am. Otherwise, mostly sunny, with a high near 86. Light and variable wind.
Monday Night
Mostly clear, with a low around 62. Light east wind.
Tuesday
Sunny, with a high near 88. Calm wind becoming east around 5 mph in the afternoon.
Tuesday Night
Mostly clear, with a low around 65. East wind around 5 mph becoming calm in the evening.
Wednesday
Mostly sunny, with a high near 91. Calm wind becoming southwest around 6 mph in the afternoon.
Wednesday Night
A slight chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 68. Calm wind.
Thursday
Sunny, with a high near 90. Calm wind becoming northwest 5 to 9 mph in the morning.
Thursday Night
Mostly clear, with a low around 65. North northwest wind around 5 mph becoming calm in the evening.
Friday
Sunny, with a high near 89. Calm wind becoming north around 6 mph in the afternoon.
Friday Night
Mostly clear, with a low around 66. Light and variable wind.
Saturday
Mostly sunny, with a high near 90. Calm wind becoming south southeast around 6 mph in the afternoon.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SE Frankfort Heights IL
 37.88°N 88.8°W
Last Update:
1:26 pm CDT Aug 23, 2026
Forecast Valid:
1pm CDT Aug 23, 2026-6pm CDT Aug 29, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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