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

73°F

23°C

Humidity	94%
Wind Speed	Calm
Barometer	30.14 in (1019.9 mb)
Dewpoint	71°F (22°C)
Visibility	10.00 mi
Last update	18 Sep 5:54 am CDT

More Information:

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

Extended Forecast for

6 Miles NNE Moscow Mills MO

Heat Advisory September 18, 06:39am until September 18, 08:00pm

Click here for hazard details and duration

Heat Advisory

Heat Advisory September 18, 06:39am until September 18, 08:00pm
NOW until 8:00pm Fri
Heat Advisory
Today
High: 92 °F
Sunny then
Slight Chance
T-storms
Tonight
Low: 71 °F
Slight Chance
T-storms then
Partly Cloudy
Saturday
High: 93 °F
Increasing
Clouds
Saturday Night
Low: 70 °F
Partly Cloudy
then Slight
Chance
T-storms
Sunday
High: 89 °F
Chance
Showers
Sunday Night
Low: 65 °F
Chance
T-storms then
Showers
Likely
Monday
High: 76 °F
Showers
Likely
Monday Night
Low: 58 °F
Chance
Showers

Detailed Forecast

Today

A slight chance of showers between 3pm and 4pm, then a slight chance of showers and thunderstorms after 4pm. Sunny, with a high near 92. Heat index values as high as 105. Northeast wind around 5 mph becoming calm in the morning. Chance of precipitation is 20%.

Tonight

A 20 percent chance of showers and thunderstorms, mainly between 8pm and 10pm. Partly cloudy, with a low around 71. Calm wind becoming southeast 5 to 7 mph in the evening.

Saturday

Increasing clouds, with a high near 93. South wind 5 to 8 mph becoming west in the morning.

Saturday Night

A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 70. Calm wind.

Sunday

A chance of showers, with thunderstorms also possible after 4pm. Partly sunny, with a high near 89. Light northwest wind. Chance of precipitation is 30%.

Sunday Night

A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 65. Chance of precipitation is 70%.

Monday

Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 76. 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 58. Chance of precipitation is 30%.

Tuesday

Mostly cloudy, with a high near 69.

Tuesday Night

Mostly cloudy, with a low around 53.

Wednesday

Mostly sunny, with a high near 73.

Wednesday Night

Partly cloudy, with a low around 53.

Thursday

Mostly sunny, with a high near 75.