Dangerous Heat over the South-Central and Southwest U.S. Through Next Week

Dangerous heat persists across the Desert Southwest through this weekend and across the Southern Plains and Lower Mississippi Valley through at least the middle of next week. Numerous daily record high temperatures are expected through at least Tuesday for much of Texas and Oklahoma as well as portions of Louisiana, New Mexico, and Arizona. Read More >

Current conditions at

St. Louis Regional Airport (KALN)

Lat: 38.89°NLon: 90.03°WElev: 518ft.

Partly Cloudy

84°F

29°C

Humidity	48%
Wind Speed	NW 7 mph
Barometer	30.03 in
Dewpoint	63°F (17°C)
Visibility	10.00 mi
Heat Index	85°F (29°C)
Last update	22 Aug 3:45 pm CDT

More Information:

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

Extended Forecast for

2 Miles SSW Alton IL

Tonight
Low: 64 °F
Mostly Clear
Sunday
High: 85 °F
Increasing
Clouds
Sunday Night
Low: 63 °F
Partly Cloudy
Monday
High: 84 °F
Mostly Sunny
Monday Night
Low: 65 °F
Slight Chance
T-storms
Tuesday
High: 86 °F
Mostly Sunny
Tuesday Night
Low: 68 °F
Partly Cloudy
Wednesday
High: 89 °F
Mostly Sunny
Wednesday Night
Low: 69 °F
Slight Chance
T-storms

Detailed Forecast

Tonight

Mostly clear, with a low around 64. North wind 5 to 8 mph becoming calm in the evening.

Sunday

Increasing clouds, with a high near 85. Calm wind becoming northwest 5 to 7 mph in the afternoon.

Sunday Night

Partly cloudy, with a low around 63. North wind around 5 mph becoming calm in the evening.

Monday

Mostly sunny, with a high near 84. Calm wind becoming east around 6 mph in the afternoon.

Monday Night

A slight chance of showers and thunderstorms. Partly cloudy, with a low around 65. East wind around 6 mph becoming calm in the evening. Chance of precipitation is 20%.

Tuesday

Mostly sunny, with a high near 86.

Tuesday Night

Partly cloudy, with a low around 68.

Wednesday

Mostly sunny, with a high near 89.

Wednesday Night

A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 69.

Thursday

Sunny, with a high near 89.

Thursday Night

Mostly clear, with a low around 67.