Isolated Severe Storms in the Midwest; Fire Weather Concerns in the Northern Plains; Record Heat in the West

Isolated severe storms are possible across parts of the Florida Peninsula and the Great Lakes to Lower Missouri Valley and south-central Plains late this afternoon and early evening. Elevated to critical fire weather concerns continue over much of the northern Great Plains. Above average temperatures persist across portions of the West today. Read More >

Hazardous Weather Conditions

Hazardous Weather Outlook

Current conditions at

Marion - Williamson County Regional Airport (KMWA)

Lat: 37.77°NLon: 89.01°WElev: 486ft.

Fair

73°F

23°C

Humidity	38%
Wind Speed	SW 9 mph
Barometer	30.15 in
Dewpoint	46°F (8°C)
Visibility	10.00 mi
Last update	12 May 10:47 am CDT

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Extended Forecast for

Simpson IL

Today
High: 81 °F
Sunny
Tonight
Low: 59 °F
Increasing
Clouds
Wednesday
High: 77 °F
Becoming
Sunny
Wednesday Night
Low: 48 °F
Clear
Thursday
High: 76 °F
Sunny
Thursday Night
Low: 54 °F
Partly Cloudy
Friday
High: 86 °F
Slight Chance
T-storms
Friday Night
Low: 68 °F
Partly Cloudy
Saturday
High: 89 °F
Chance
T-storms

Detailed Forecast

Today

Sunny, with a high near 81. Southwest wind 6 to 9 mph.

Tonight

Increasing clouds, with a low around 59. South southwest wind around 6 mph becoming calm in the evening.

Wednesday

Partly sunny, then gradually becoming sunny, with a high near 77. Light north northwest wind becoming northwest 8 to 13 mph in the morning. Winds could gust as high as 23 mph.

Wednesday Night

Clear, with a low around 48. North northwest wind 5 to 7 mph becoming calm in the evening.

Thursday

Sunny, with a high near 76. Calm wind.

Thursday Night

Partly cloudy, with a low around 54. Calm wind becoming south southeast around 5 mph after midnight.

Friday

A 20 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 86. South wind 6 to 13 mph, with gusts as high as 25 mph.

Friday Night

Partly cloudy, with a low around 68. South southwest wind 6 to 8 mph, with gusts as high as 20 mph.

Saturday

A chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 89. South southwest wind 5 to 9 mph, with gusts as high as 20 mph.

Saturday Night

Partly cloudy, with a low around 68. South wind 3 to 6 mph.

Sunday

Mostly sunny, with a high near 90. Light south wind increasing to 8 to 13 mph in the morning. Winds could gust as high as 24 mph.

Sunday Night

Partly cloudy, with a low around 70. South wind 7 to 9 mph, with gusts as high as 21 mph.

Monday

A chance of showers and thunderstorms. Mostly sunny, with a high near 91. South southwest wind 7 to 14 mph, with gusts as high as 24 mph.