Excessive Rainfall and Severe Thunderstorms Threaten the Southern U.S. Again Thursday

A Moderate Risk (Level 3 of 4) Excessive Rainfall Outlook and Flood Watches have been issued for portions of east Texas into Louisiana Thursday where flash, urban, and riverine flooding is possible. A Slight Risk (Level 2 of 5) for scattered severe thunderstorms has been issued from west Texas to the lower Mississippi Valley Thursday afternoon into Thursday night. Read More >

Hazardous Weather Conditions

Hazardous Weather Outlook

Current conditions at

St. Louis Regional Airport (KALN)

Lat: 38.89°NLon: 90.03°WElev: 518ft.

Fog/Mist

59°F

15°C

Humidity	98%
Wind Speed	Calm
Barometer	29.85 in
Dewpoint	58°F (14°C)
Visibility	4.00 mi
Last update	16 May 6:15 am CDT

More Information:

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

Extended Forecast for

2 Miles WNW Chesterfield IL

Today
High: 74 °F
Showers
Likely
Tonight
Low: 61 °F
Chance
T-storms then
Chance
Showers
Friday
High: 76 °F
Chance
Showers then
Chance
T-storms
Friday Night
Low: 59 °F
Slight Chance
T-storms
Saturday
High: 80 °F
Slight Chance
T-storms
Saturday Night
Low: 61 °F
Mostly Clear
Sunday
High: 86 °F
Sunny
Sunday Night
Low: 65 °F
Partly Cloudy
Monday
High: 86 °F
Chance
Showers then
Chance
T-storms

Detailed Forecast

Today

A chance of showers before 10am, then a chance of showers and thunderstorms between 10am and noon, then showers likely and possibly a thunderstorm after noon. Cloudy, with a high near 74. Light and variable wind becoming south 5 to 10 mph in the morning. Chance of precipitation is 60%.

Tonight

A 40 percent chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 61. Southwest wind 3 to 7 mph.

Friday

A chance of showers, with thunderstorms also possible after 10am. Mostly cloudy, with a high near 76. Calm wind becoming south 5 to 7 mph in the afternoon. Chance of precipitation is 50%.

Friday Night

A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 59. Southeast wind around 5 mph becoming calm in the evening.

Saturday

A slight chance of showers, with thunderstorms also possible after 10am. Mostly sunny, with a high near 80. Calm wind becoming southeast around 6 mph in the morning. Chance of precipitation is 20%.

Saturday Night

Mostly clear, with a low around 61.

Sunday

Sunny, with a high near 86.

Sunday Night

Partly cloudy, with a low around 65.

Monday

A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 86.

Monday Night

A 50 percent chance of showers and thunderstorms. Partly cloudy, with a low around 68.

Tuesday

A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 87.