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St. Charles, MO

86°F
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St. Charles, MO Weather
Today WinterCast Local {stormName} Tracker Hourly 10-Day Radar MinuteCast® Monthly Air Quality Health & Activities

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September 12 - September 26

Sat 9/12

93° /69°
55%
Partly cloudy, warm and humid; a thunderstorm in spots late

RealFeel®70°

Cloud Cover29%

WindNW 6 mph

Wind Gusts7 mph

Total Hours of Precipitation0.5

Total Hours of Rain0.5

Sun 9/13

83° /64°
62%
Not as hot but humid with sunshine and a few clouds; a passing shower in the morning followed by a thunderstorm in spots in the afternoon

RealFeel®91°

RealFeel Shade™84°

Max UV Index6.0 (High)

WindN 7 mph

Total Hours of Precipitation1

Total Hours of Rain1

Mon 9/14

85° /72°
10%
Mostly sunny and less humid

RealFeel®87°

RealFeel Shade™84°

Max UV Index6.0 (High)

WindESE 9 mph

Tue 9/15

98° /70°
55%
Near-record temperatures with lots of sun; a thunderstorm late in the afternoon; danger of dehydration and heatstroke if outside for extended periods of time

RealFeel®105°

RealFeel Shade™101°

Max UV Index6.0 (High)

WindS 8 mph

Total Hours of Precipitation0.5

Total Hours of Rain0.5

Wed 9/16

96° /71°
25%
Humid with the temperature near the record of 98 with some sun; danger of dehydration and heatstroke if outside for extended periods of time

RealFeel®104°

RealFeel Shade™100°

Max UV Index3.0 (Moderate)

WindS 6 mph

Thu 9/17

92° /71°
55%
Partly sunny with a thunderstorm; hot and humid

RealFeel®102°

RealFeel Shade™97°

Max UV Index6.0 (High)

WindWNW 5 mph

Total Hours of Precipitation1.5

Total Hours of Rain1.5

Fri 9/18

89° /67°
75%
Mainly cloudy and very warm; periods of rain and a thunderstorm in the afternoon

RealFeel®95°

RealFeel Shade™91°

Max UV Index6.0 (High)

WindSSW 7 mph

Total Hours of Precipitation2

Total Hours of Rain2

Sat 9/19

86° /63°
60%
Rain most of the time

RealFeel®86°

RealFeel Shade™84°

Max UV Index4.0 (Moderate)

WindWNW 9 mph

Total Hours of Precipitation3.5

Total Hours of Rain3.5

Sun 9/20

78° /58°
1%
Mostly sunny and humid

RealFeel®84°

RealFeel Shade™81°

Max UV Index5.0 (Moderate)

WindNNE 10 mph

Mon 9/21

74° /56°
0%
Less humid with plenty of sunshine

RealFeel®78°

RealFeel Shade™72°

Max UV Index5.0 (Moderate)

WindNE 5 mph

Tue 9/22

78° /56°
2%
Mostly cloudy

RealFeel®80°

RealFeel Shade™76°

Max UV Index3.0 (Moderate)

WindE 5 mph

Wed 9/23

77° /55°
3%
Plenty of sunshine

RealFeel®81°

RealFeel Shade™76°

Max UV Index5.0 (Moderate)

WindE 4 mph

Thu 9/24

78° /54°
2%
Mostly sunny

RealFeel®81°

RealFeel Shade™76°

Max UV Index5.0 (Moderate)

WindSSE 6 mph

Fri 9/25

77° /54°
20%
Plenty of sunshine

RealFeel®79°

RealFeel Shade™75°

Max UV Index5.0 (Moderate)

WindSSE 7 mph

Sat 9/26

82° /59°
25%
Mostly cloudy

RealFeel®83°

RealFeel Shade™82°

Max UV Index2.0 (Low)

WindS 4 mph

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World North America United States Missouri St. Charles

Weather Near St. Charles:

  • O'Fallon, MO
  • Springfield, IL
  • St. Louis, MO
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