Severe Weather and Heavy Rainfall from the Midwest to the Ohio Valley; Mid-Summer Heat Continues

Severe thunderstorm and heavy rainfall threats will persist from the Midwest to Lower Great Lakes through Monday, shifting into the Ohio Valley and Central Appalachians Monday evening into Tuesday. Mid-summer heat will continue across much of the CONUS this week, with record highs possible well into the 100s across the south-central High Plains. Read More >

Hazardous Weather Conditions

Extreme Heat Warning until August 12, 08:00 PM CDT

Current conditions at

St. Louis Lambert International Airport (KSTL)

Lat: 38.75°NLon: 90.37°WElev: 604ft.

A Few Clouds

88°F

31°C

Humidity	63%
Wind Speed	S 13 G 22 mph
Barometer	29.91 in (1011.4 mb)
Dewpoint	74°F (23°C)
Visibility	10.00 mi
Heat Index	97°F (36°C)
Last update	9 Aug 7:51 pm CDT

More Information:

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

Extended Forecast for

Black Jack MO

Extreme Heat Warning August 9, 07:58pm until August 12, 08:00pm

Click here for hazard details and duration

Extreme Heat Warning

Extreme Heat Warning August 9, 07:58pm until August 12, 08:00pm
NOW until 8:00pm Wed
Extreme Heat Warning
Tonight
Low: 78 °F
Mostly Clear
Monday
High: 96 °F
Mostly Sunny
Monday Night
Low: 80 °F
Partly Cloudy
Tuesday
High: 96 °F
Decreasing
Clouds
Tuesday Night
Low: 79 °F
Partly Cloudy
Wednesday
High: 93 °F
Chance
Showers
Wednesday Night
Low: 76 °F
Chance
T-storms
Thursday
High: 87 °F
Showers
Likely

Detailed Forecast

Tonight

Mostly clear, with a low around 78. South wind 7 to 11 mph, with gusts as high as 20 mph.

Monday

Mostly sunny, with a high near 96. Heat index values as high as 106. Southwest wind 6 to 11 mph, with gusts as high as 20 mph.

Monday Night

Partly cloudy, with a low around 80. Southwest wind 7 to 9 mph.

Tuesday

Mostly cloudy, then gradually becoming sunny, with a high near 96. Heat index values as high as 106. Southwest wind around 9 mph.

Tuesday Night

Partly cloudy, with a low around 79. Southwest wind 6 to 9 mph.

Wednesday

A 30 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 93.

Wednesday Night

A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 76.

Thursday

Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 87. Chance of precipitation is 60%.

Thursday Night

A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 72. Chance of precipitation is 60%.

Friday

A 40 percent chance of showers and thunderstorms before 1pm. Mostly cloudy, with a high near 85.

Friday Night

A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 72.

Saturday

A 40 percent chance of showers. Partly sunny, with a high near 88.

Saturday Night

A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 73.

Sunday

A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 86.