Severe Weather and Heavy Rain Threat over the Central U.S.; Dangerous Heat In the South

Widespread strong to severe storms and heavy rain remain possible tonight across parts of the central and southern Plains into southern Missouri. The threat will move over parts of the middle Mississippi Valley and Ohio Valley from Sunday into Monday morning. A dangerous early-season heat wave continues over south Texas and southern Florida. Read More >

Hazardous Weather Conditions

Current conditions at

St. Louis Regional Airport (KALN)

Lat: 38.89°NLon: 90.03°WElev: 518ft.

Light Rain

77°F

25°C

Humidity	69%
Wind Speed	SW 12 mph
Barometer	29.58 in
Dewpoint	66°F (19°C)
Visibility	10.00 mi
Heat Index	79°F (26°C)
Last update	26 May 3:50 pm CDT

More Information:

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

Extended Forecast for

2 Miles SW Alton IL

Flood Watch May 26, 04:15pm until May 27, 01:00am

Tornado Watch until May 26, 11:00pm

Click here for hazard details and duration

Flood Watch

Tornado Watch

Flood Watch May 26, 04:15pm until May 27, 01:00am
Tornado Watch until May 26, 11:00pm
NOW: Multiple hazards in effect
Click HERE for Details
This Afternoon
High: 85 °F
Severe
Thunderstorms
Tonight
Low: 62 °F
Severe
Thunderstorms
then Slight
Chance
T-storms
Memorial Day
High: 80 °F
Sunny
Monday Night
Low: 61 °F
Mostly Clear
Tuesday
High: 80 °F
Sunny
Tuesday Night
Low: 57 °F
Mostly Clear
Wednesday
High: 76 °F
Sunny
Wednesday Night
Low: 54 °F
Mostly Clear

Detailed Forecast

This Afternoon

Showers and thunderstorms. Some of the storms could be severe. High near 85. South wind around 14 mph, with gusts as high as 23 mph. Chance of precipitation is 100%.

Tonight

Showers and thunderstorms, mainly before 11pm. Some of the storms could be severe. Low around 62. West wind 6 to 10 mph. Chance of precipitation is 80%.

Memorial Day

Sunny, with a high near 80. West wind 8 to 13 mph, with gusts as high as 20 mph.

Monday Night

Mostly clear, with a low around 61. West wind 5 to 10 mph.

Tuesday

Sunny, with a high near 80. Northwest wind 6 to 13 mph, with gusts as high as 21 mph.

Tuesday Night

Mostly clear, with a low around 57.

Wednesday

Sunny, with a high near 76.

Wednesday Night

Mostly clear, with a low around 54.