Heat Persists in the South Central U.S. and Southwest; Heavy rains in the Desert Southwest and Central Plains

Sweltering heat remains across the South-Central Plains, Lower/Middle Mississippi Valley, and the Southwest this week with limited nighttime relief. Thunderstorms will bring heavy rainfall leading to localized flash flooding in portions of the Desert Southwest and central Plains. Isolated strong to severe thunderstorms are possible across portions of the central Plains into the Northeast. Read More >

Hazardous Weather Conditions

Heat Advisory in effect from September 9, 12:00 PM CDT until September 9, 07:00 PM CDT

Current conditions at

St. Louis Downtown Airport (KCPS)

Lat: 38.56°NLon: 90.15°WElev: 410ft.

Fair

71°F

22°C

Humidity	84%
Wind Speed	Calm
Barometer	30.04 in (1016.7 mb)
Dewpoint	66°F (19°C)
Visibility	10.00 mi
Last update	9 Sep 5:53 am CDT

More Information:

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

Extended Forecast for

Maeystown IL

Heat Advisory September 9, 12:00pm until September 9, 07:00pm

Click here for hazard details and duration

Heat Advisory

Today
High: 97 °F
Slight Chance
Showers then
Chance
T-storms
Tonight
Low: 71 °F
T-storms
Likely then
T-storms
Thursday
High: 79 °F
Showers then
Chance
T-storms
Thursday Night
Low: 64 °F
Mostly Cloudy
Friday
High: 84 °F
Partly Sunny
then Slight
Chance
Showers
Friday Night
Low: 66 °F
Partly Cloudy
Saturday
High: 90 °F
Chance
Showers
Saturday Night
Low: 68 °F
Chance
Showers
Sunday
High: 90 °F
Slight Chance
Showers

Detailed Forecast

Today

A slight chance of showers between 8am and 1pm, then a chance of showers and thunderstorms after 1pm. Increasing clouds and hot, with a high near 97. Heat index values as high as 105. Light and variable wind becoming southwest 5 to 8 mph in the morning. Chance of precipitation is 40%.

Tonight

Showers and thunderstorms likely, then showers and possibly a thunderstorm after 1am. Low around 71. Light and variable wind. Chance of precipitation is 90%.

Thursday

Showers and possibly a thunderstorm before noon, then a chance of showers and thunderstorms, mainly between noon and 5pm. High near 79. Calm wind becoming northwest around 5 mph in the morning. Chance of precipitation is 90%.

Thursday Night

Mostly cloudy, with a low around 64. Light north wind.

Friday

A 20 percent chance of showers after 1pm. Mostly sunny, with a high near 84. Light and variable wind.

Friday Night

Partly cloudy, with a low around 66.

Saturday

A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 90. Chance of precipitation is 40%.

Saturday Night

A 40 percent chance of showers and thunderstorms, mainly before 1am. Mostly cloudy, with a low around 68.

Sunday

A 20 percent chance of showers before 1pm. Mostly sunny, with a high near 90.