Areas of Excessive Rainfall and Severe Thunderstorms; Fire Weather Concerns in the Northern Plains and Four Corners Region

Widespread showers and thunderstorms may bring areas of flash flooding across much of the Southern Plains into the Gulf Coast region and the upper Ohio River Valley into the Mid-Atlantic. A large Pacific storm will bring widespread rain, gusty winds, and mountain snow to California and the Great Basin. Fire weather concerns expected in the Northern Plains and the Four Corners region. Read More >

Hazardous Weather Conditions

Current conditions at

Marion - Williamson County Regional Airport (KMWA)

Lat: 37.77°NLon: 89.01°WElev: 486ft.

Overcast

68°F

20°C

Humidity 98%
Wind Speed SW 5 mph
Barometer 29.97 in
Dewpoint 67°F (19°C)
Visibility 7.00 mi
Last update 27 May 5:35 am CDT
Extended Forecast for

2 Miles ENE Frankfort Heights IL

  • Overnight

    Overnight: A 20 percent chance of showers.  Mostly cloudy, with a steady temperature around 68. Southwest wind around 5 mph.

    Low: 68 °F

    Slight Chance
    Showers

  • Wednesday

    Wednesday: A slight chance of showers before 7am, then a chance of showers and thunderstorms after 2pm.  Cloudy, then gradually becoming mostly sunny, with a high near 83. Light and variable wind becoming west southwest around 6 mph in the morning.  Chance of precipitation is 30%.

    High: 83 °F

    Slight Chance
    Showers then
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: Increasing clouds, with a low around 65. Calm wind.

    Low: 65 °F

    Increasing
    Clouds

  • Thursday

    Thursday: Partly sunny, with a high near 84. Calm wind becoming east northeast 5 to 9 mph in the morning.

    High: 84 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 65. East northeast wind around 6 mph.

    Low: 65 °F

    Mostly Cloudy

  • Friday

    Friday: A slight chance of showers, with thunderstorms also possible after 4pm.  Mostly cloudy, with a high near 79. East wind around 7 mph.  Chance of precipitation is 20%.

    High: 79 °F

    Slight Chance
    Showers then
    Slight Chance
    T-storms

  • Friday Night

    Friday Night: A slight chance of showers and thunderstorms.  Mostly cloudy, with a low around 63. East northeast wind around 6 mph becoming calm  in the evening.  Chance of precipitation is 20%.

    Low: 63 °F

    Slight Chance
    T-storms then
    Slight Chance
    Showers

  • Saturday

    Saturday: A slight chance of showers and thunderstorms after 1pm.  Mostly sunny, with a high near 82. Calm wind becoming east northeast 5 to 7 mph in the morning.

    High: 82 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 62. East northeast wind around 6 mph.

    Low: 62 °F

    Partly Cloudy

Detailed Forecast

Overnight
A 20 percent chance of showers. Mostly cloudy, with a steady temperature around 68. Southwest wind around 5 mph.
Wednesday
A slight chance of showers before 7am, then a chance of showers and thunderstorms after 2pm. Cloudy, then gradually becoming mostly sunny, with a high near 83. Light and variable wind becoming west southwest around 6 mph in the morning. Chance of precipitation is 30%.
Wednesday Night
Increasing clouds, with a low around 65. Calm wind.
Thursday
Partly sunny, with a high near 84. Calm wind becoming east northeast 5 to 9 mph in the morning.
Thursday Night
Mostly cloudy, with a low around 65. East northeast wind around 6 mph.
Friday
A slight chance of showers, with thunderstorms also possible after 4pm. Mostly cloudy, with a high near 79. East wind around 7 mph. Chance of precipitation is 20%.
Friday Night
A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 63. East northeast wind around 6 mph becoming calm in the evening. Chance of precipitation is 20%.
Saturday
A slight chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 82. Calm wind becoming east northeast 5 to 7 mph in the morning.
Saturday Night
Partly cloudy, with a low around 62. East northeast wind around 6 mph.
Sunday
Mostly sunny, with a high near 79. East northeast wind 7 to 9 mph.
Sunday Night
Mostly clear, with a low around 59. East northeast wind 5 to 7 mph becoming calm in the evening.
Monday
Sunny, with a high near 81. Light northeast wind increasing to 5 to 9 mph in the morning.
Monday Night
Mostly clear, with a low around 59. Northeast wind 5 to 7 mph becoming calm in the evening.
Tuesday
Sunny, with a high near 81. Light northeast wind becoming east northeast 5 to 10 mph in the morning.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles ENE Frankfort Heights IL
 37.93°N 88.82°W
4:56 am CDT May 27, 2026
5am CDT May 27, 2026-6pm CDT Jun 2, 2026
 
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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