SAINT CHARLES, MO 63301 Weather Forecast & Current Conditions

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ST. CHARLES, MO
Current Weather

7:54 PM CDT JUN 29, 2026
Clear
88°F
Feels Like: 98°F
Dewpoint: 75°F
Rel. Hum.: 66%
Visibility: 10 miles
Wind: S at 8 mph
Pressure: 29.91 inches
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SAINT CHARLES, MO 63301
Weather Forecast

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TONIGHT
Partly cloudy this evening, then clearing. Lows in the mid 70s. South winds 10 to 15 mph. Heat index values up to 108 early this evening.
TUESDAY
Sunny, hot with highs in the upper 90s. Southwest winds 5 to 10 mph. Heat index values up to 110.
TUESDAY NIGHT
Clear with lows in the mid 70s. South winds 5 to 10 mph. Heat index values up to 109 early in the evening.
WEDNESDAY
Sunny, hot with highs in the mid 90s. South winds 5 to 10 mph. Heat index values up to 109.
WEDNESDAY NIGHT
Clear with lows in the upper 70s. South winds 5 to 10 mph. Heat index values up to 109 early in the evening.
THURSDAY AND THURSDAY NIGHT
Mostly clear. A slight chance of showers and thunderstorms. Hot. Highs in the mid 90s. Lows in the mid 70s. Chance of rain 20 percent. Heat index values up to 110.
FRIDAY
Sunny. A slight chance of showers and thunderstorms in the morning, then a chance of showers and thunderstorms in the afternoon. Highs in the mid 90s. Chance of rain 40 percent. Heat index values up to 105.
FRIDAY NIGHT
Partly cloudy in the evening, then clearing. Lows in the mid 70s. Heat index values up to 105 early in the evening.
INDEPENDENCE DAY
Mostly sunny. A slight chance of showers and thunderstorms in the afternoon. Highs in the mid 90s. Chance of rain 20 percent. Heat index values up to 105.
SATURDAY NIGHT
Partly cloudy with a slight chance of thunderstorms. A slight chance of showers in the evening, then a chance of showers after midnight. Lows in the mid 70s. Chance of rain 30 percent. Heat index values up to 105 early in the evening.
SUNDAY AND SUNDAY NIGHT
Partly cloudy. A chance of showers and thunderstorms. Highs in the lower 90s. Lows in the lower 70s. Chance of rain 50 percent. Heat index values up to 105.
MONDAY
Mostly sunny with a slight chance of thunderstorms. A slight chance of showers in the morning, then a chance of showers in the afternoon. Highs in the upper 80s. Chance of rain 30 percent.

Visible Weather Satellite
SAINT CHARLES, MO 63301
Infrared Weather Satellite
SAINT CHARLES, MO 63301
NEXRAD Weather Radar
SAINT CHARLES, MO 63301

ST. CHARLES, MO 3 hourly weather forecast

weather forecast created  7:00 AM CDT  6/29/2026
Monday
29 JUN 2026
SAINT CHARLES, MO 63301 weather forecast Day 1, 12 hours 1 PM 93° 103° Mostly Cloudy 1%

0% Thunder
( 6% severe)
S   13 54% 74°
High 97° SAINT CHARLES, MO 63301 weather forecast Day 1, 15 hours 4 PM 96° 106° Mostly Cloudy SSW   14 48% 73°
Mostly Cloudy



SAINT CHARLES, MO 63301 weather forecast Day 1, 18 hours 7 PM 94° 105° Mostly Cloudy 1%

0% Thunder
( 7% severe)
S   13 53% 74°
SAINT CHARLES, MO 63301 weather forecast Day 1, 21 hours 10 PM 86° 93° Partly Cloudy S   10 65% 73°
Tuesday
30 JUN 2026
SAINT CHARLES, MO 63301 weather forecast Day 2, 0 hours 1 AM 83° 88° Partly Cloudy 0%

0% Thunder
( 4% severe)
S   9 70% 72°
Low 76° SAINT CHARLES, MO 63301 weather forecast Day 2, 3 hours 4 AM 79° 82° Clear SSW   7 77% 71°
High 98° SAINT CHARLES, MO 63301 weather forecast Day 2, 6 hours 7 AM 79° 82° Partly Cloudy 1%

0% Thunder
( 7% severe)
S   7 77% 71°

Partly Cloudy



SAINT CHARLES, MO 63301 weather forecast Day 2, 9 hours 10 AM 89° 95° Clear SW   10 56% 71°
SAINT CHARLES, MO 63301 weather forecast Day 2, 12 hours 1 PM 95° 104° Partly Cloudy 0%

0% Thunder
( 11% severe)
SSW   12 48% 72°
SAINT CHARLES, MO 63301 weather forecast Day 2, 15 hours 4 PM 98° 106° Partly Cloudy SSW   12 41% 70°
SAINT CHARLES, MO 63301 weather forecast Day 2, 18 hours 7 PM 96° 105° Clear 0%

0% Thunder
( 10% severe)
SSW   9 46% 72°
SAINT CHARLES, MO 63301 weather forecast Day 2, 21 hours 10 PM 86° 91° Clear S   8 61% 71°
Wednesday
1 JUL 2026
SAINT CHARLES, MO 63301 weather forecast Day 3, 0 hours 1 AM 82° 86° Clear 0%

0% Thunder
( 9% severe)
SSW   7 69% 71°
Low 76° SAINT CHARLES, MO 63301 weather forecast Day 3, 3 hours 4 AM 79° 82° Clear SSW   6 77% 71°
High 97° SAINT CHARLES, MO 63301 weather forecast Day 3, 6 hours 7 AM 79° 82° Clear 0%

0% Thunder
( 8% severe)
S   6 77% 71°

Clear



SAINT CHARLES, MO 63301 weather forecast Day 3, 9 hours 10 AM 90° 96° Clear SSW   9 54% 71°
SAINT CHARLES, MO 63301 weather forecast Day 3, 15 hours 1 PM 95° 102° Clear 1%

0% Thunder
( 16% severe)
SW   12 45% 70°
SAINT CHARLES, MO 63301 weather forecast Day 3, 18 hours 4 PM 97° 104° Clear SSW   10 42% 70°
SAINT CHARLES, MO 63301 weather forecast Day 3, 21 hours 7 PM 95° 102° Clear     S   9 45% 70°

ST. CHARLES, MO extended weather forecast

Thursday
2 JUL 2026
Friday
3 JUL 2026
Saturday
4 JUL 2026
Sunday
5 JUL 2026
Monday
6 JUL 2026
Low 75° Low 71° Low 73° Low 74° Low 72°
High 97° High 95° High 96° High 94° High 90°
SAINT CHARLES, MO 63301 weather forecast Day 4 SAINT CHARLES, MO 63301 weather forecast Day 5 SAINT CHARLES, MO 63301 weather forecast Day 6 SAINT CHARLES, MO 63301 weather forecast Day 7 <!--SEARCHED_TOWN_NAME--> weather forecast Day 8
Partly Cloudy
54% Rain
Partly Cloudy
39% Rain
Partly Cloudy
26% Rain
Partly Cloudy
29% Rain
Partly Cloudy
34% Rain
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