Significant Severe Weather, Dangerous Heat and Extremely Critical Fire Weather Conditions Across the Southern U.S.

Tornadoes (some strong), extreme hail, and widespread wind damage are forecast over parts of the central and southern Plains Saturday afternoon through Saturday night. A Moderate Risk (level 4 of 5) for severe storms has been issued. Strong winds and low relative humidity will contribute to extremely critical fire weather Saturday in the Southwest. Dangerous heat continues in South Texas. Read More >

Hazardous Weather Conditions

Current conditions at

St. Louis Regional Airport (KALN)

Lat: 38.89°NLon: 90.03°WElev: 518ft.

Fair

75°F

24°C

Humidity	47%
Wind Speed	Vrbl 5 mph
Barometer	29.90 in
Dewpoint	54°F (12°C)
Visibility	10.00 mi
Last update	25 May 1:50 pm CDT

More Information:

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

Extended Forecast for

5 Miles SSE Donnellson IL

Flood Watch May 26, 01:00am until May 27, 01:00am

Click here for hazard details and duration

Flood Watch

This Afternoon
High: 78 °F
Sunny
Tonight
Low: 63 °F
Increasing
Clouds
Sunday
High: 82 °F
T-storms
Sunday Night
Low: 61 °F
T-storms then
Showers
Likely
Memorial Day
High: 77 °F
Mostly Sunny
Monday Night
Low: 58 °F
Mostly Clear
Tuesday
High: 75 °F
Sunny
Tuesday Night
Low: 55 °F
Mostly Clear
Wednesday
High: 76 °F
Sunny

Detailed Forecast

This Afternoon

Sunny, with a high near 78. Northeast wind 3 to 5 mph.

Tonight

Increasing clouds, with a low around 63. Calm wind becoming southeast 5 to 8 mph after midnight.

Sunday

Showers and thunderstorms. High near 82. Southeast wind 10 to 17 mph becoming southwest in the morning. Winds could gust as high as 25 mph. Chance of precipitation is 100%.

Sunday Night

Showers and thunderstorms before 10pm, then showers likely and possibly a thunderstorm between 10pm and 1am. Low around 61. Southwest wind 7 to 11 mph, with gusts as high as 20 mph. Chance of precipitation is 80%.

Memorial Day

Mostly sunny, with a high near 77. Northwest wind 10 to 14 mph, with gusts as high as 21 mph.

Monday Night

Mostly clear, with a low around 58.

Tuesday

Sunny, with a high near 75.

Tuesday Night

Mostly clear, with a low around 55.

Wednesday

Sunny, with a high near 76.

Wednesday Night

Mostly clear, with a low around 52.