Dangerous Heat and Heavy Rainfall into the Weekend

Hot temperatures and high humidity are forecast to continue across the mid-Mississippi Valley into this weekend. Heat Advisories remain in effect. Heavy to excessive rainfall occurring at times through the weekend could bring areas of flooding to parts of the northern Rockies, upper Midwest, central Great Lakes, and southern New England. Read More >

Hazardous Weather Conditions

Heat Advisory until September 18, 08:00 PM CDT

Current conditions at

St. Charles, St. Charles County Smartt Airport (KSET)

Lat: 38.93°NLon: 90.43°WElev: 436ft.

Fair

76°F

24°C

Humidity	91%
Wind Speed	NE 6 mph
Barometer	30.16 in (1020.7 mb)
Dewpoint	73°F (23°C)
Visibility	10.00 mi
Heat Index	76°F (24°C)
Last update	18 Sep 7:54 am CDT

More Information:

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

Extended Forecast for

6 Miles WSW Elsberry MO

Heat Advisory September 18, 07:58am until September 18, 08:00pm

Click here for hazard details and duration

Heat Advisory

Heat Advisory September 18, 07:58am until September 18, 08:00pm
NOW until 8:00pm Fri
Heat Advisory
Today
High: 91 °F
Mostly Sunny
then Slight
Chance
Showers
Tonight
Low: 71 °F
Partly Cloudy
Saturday
High: 92 °F
Increasing
Clouds
Saturday Night
Low: 70 °F
Partly Cloudy
then Chance
Showers
Sunday
High: 87 °F
Chance
Showers
Sunday Night
Low: 64 °F
Chance
T-storms then
Showers
Likely
Monday
High: 74 °F
Showers
Likely
Monday Night
Low: 57 °F
Chance
Showers

Detailed Forecast

Today

A slight chance of showers between 3pm and 4pm. Sunny, with a high near 91. Heat index values as high as 102. Light and variable wind becoming northeast around 6 mph. Chance of precipitation is 20%.

Tonight

Partly cloudy, with a low around 71. Light and variable wind becoming southeast 5 to 7 mph in the evening.

Saturday

Increasing clouds, with a high near 92. South wind 6 to 8 mph becoming west in the morning.

Saturday Night

A 30 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 70. Light south wind.

Sunday

A chance of showers, with thunderstorms also possible after 4pm. Partly sunny, with a high near 87. Calm wind becoming west around 5 mph in the afternoon. Chance of precipitation is 40%.

Sunday Night

A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 64. Chance of precipitation is 70%.

Monday

Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 74. Chance of precipitation is 70%.

Monday Night

A chance of showers and thunderstorms before 1am, then a slight chance of showers. Mostly cloudy, with a low around 57. Chance of precipitation is 30%.

Tuesday

Mostly cloudy, with a high near 68.

Tuesday Night

Mostly cloudy, with a low around 52.

Wednesday

Mostly sunny, with a high near 72.

Wednesday Night

Partly cloudy, with a low around 53.

Thursday

Mostly sunny, with a high near 74.