PORTAGE DES SIOUX, MO 63373 Weather Forecast & Current Conditions

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ST. CHARLES, MO
Current Weather

3:54 PM CDT AUG 3, 2026
Clear
84°F
Feels Like: 85°F
Dewpoint: 63°F
Rel. Hum.: 49%
Visibility: 10 miles
Wind: Calm
Pressure: 29.96 inches
Last 72 hours

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PORTAGE DES SIOUX, MO 63373
Weather Forecast

Snowfall Forecast pages
Snow Depth pages
TONIGHT
Mostly clear. Lows in the mid 60s. Southeast winds around 5 mph.
TUESDAY
Sunny. Highs in the upper 80s. Southeast winds around 5 mph.
TUESDAY NIGHT
Mostly clear. Lows in the upper 60s. Southeast winds around 5 mph.
WEDNESDAY
Sunny. Highs in the upper 80s. South winds around 5 mph.
WEDNESDAY NIGHT
Partly cloudy with a slight chance of showers and thunderstorms in the evening, then mostly cloudy with showers likely with a chance of thunderstorms after midnight. Lows around 70. South winds around 5 mph. Chance of rain 70 percent.
THURSDAY
Becoming partly sunny in the afternoon. A slight chance of thunderstorms. Showers likely, mainly in the morning. Highs in the mid 80s. Chance of rain 70 percent.
THURSDAY NIGHT
Mostly cloudy with a chance of showers. A chance of thunderstorms, mainly in the evening. Lows in the upper 60s. Chance of rain 50 percent.
FRIDAY
Partly sunny with a slight chance of showers and thunderstorms. Highs in the mid 80s. Chance of rain 20 percent.
FRIDAY NIGHT AND SATURDAY
Partly cloudy. A slight chance of showers and thunderstorms. Lows in the upper 60s. Highs in the upper 80s. Chance of rain 20 percent.
SATURDAY NIGHT THROUGH SUNDAY NIGHT
Mostly clear. Lows in the lower 70s. Highs in the lower 90s. Heat index values up to 100.
MONDAY
Mostly sunny. Highs in the lower 90s. Heat index values up to 105.

Visible Weather Satellite
PORTAGE DES SIOUX, MO 63373
Infrared Weather Satellite
PORTAGE DES SIOUX, MO 63373
NEXRAD Weather Radar
PORTAGE DES SIOUX, MO 63373

ST. CHARLES, MO 3 hourly weather forecast

weather forecast created  7:00 AM CDT  8/ 3/2026
Monday
3 AUG 2026
PORTAGE DES SIOUX, MO 63373 weather forecast Day 1, 12 hours 1 PM 84° 86° Partly Cloudy 0%

0% Thunder
( 2% severe)
ENE   2 53% 65°
High 87° PORTAGE DES SIOUX, MO 63373 weather forecast Day 1, 15 hours 4 PM 86° 87° Partly Cloudy ESE   3 48% 64°
Partly Cloudy



PORTAGE DES SIOUX, MO 63373 weather forecast Day 1, 18 hours 7 PM 84° 86° Partly Cloudy 0%

0% Thunder
( 2% severe)
ESE   3 55% 66°
PORTAGE DES SIOUX, MO 63373 weather forecast Day 1, 21 hours 10 PM 74° 74° Clear E   5 76% 66°
Tuesday
4 AUG 2026
PORTAGE DES SIOUX, MO 63373 weather forecast Day 2, 0 hours 1 AM 70° 70° Clear 0%

0% Thunder
( 1% severe)
E   5 84% 65°
Low 66° PORTAGE DES SIOUX, MO 63373 weather forecast Day 2, 3 hours 4 AM 68° 68° Partly Cloudy E   3 90% 65°
High 90° PORTAGE DES SIOUX, MO 63373 weather forecast Day 2, 6 hours 7 AM 69° 69° Partly Cloudy 0%

0% Thunder
( 1% severe)
ESE   3 93% 67°

Partly Cloudy



PORTAGE DES SIOUX, MO 63373 weather forecast Day 2, 9 hours 10 AM 82° 85° Partly Cloudy S   6 63% 68°
PORTAGE DES SIOUX, MO 63373 weather forecast Day 2, 12 hours 1 PM 88° 91° Clear 0%

0% Thunder
( 3% severe)
S   5 50% 67°
PORTAGE DES SIOUX, MO 63373 weather forecast Day 2, 15 hours 4 PM 90° 92° Clear SE   5 45% 66°
PORTAGE DES SIOUX, MO 63373 weather forecast Day 2, 18 hours 7 PM 86° 89° Partly Cloudy 0%

0% Thunder
( 4% severe)
ESE   5 55% 68°
PORTAGE DES SIOUX, MO 63373 weather forecast Day 2, 21 hours 10 PM 77° 79° Clear SE   7 71% 67°
Wednesday
5 AUG 2026
PORTAGE DES SIOUX, MO 63373 weather forecast Day 3, 0 hours 1 AM 73° 73° Clear 0%

0% Thunder
( 4% severe)
SSE   6 76% 65°
Low 68° PORTAGE DES SIOUX, MO 63373 weather forecast Day 3, 3 hours 4 AM 71° 71° Clear SSE   5 81% 65°
High 90° PORTAGE DES SIOUX, MO 63373 weather forecast Day 3, 6 hours 7 AM 72° 72° Partly Cloudy 1%

0% Thunder
( 6% severe)
SSE   5 81% 66°

Partly Cloudy



PORTAGE DES SIOUX, MO 63373 weather forecast Day 3, 9 hours 10 AM 82° 85° Partly Cloudy S   6 61% 67°
PORTAGE DES SIOUX, MO 63373 weather forecast Day 3, 15 hours 1 PM 88° 93° Partly Cloudy 5%

0% Thunder
( 15% severe)
S   6 54% 69°
PORTAGE DES SIOUX, MO 63373 weather forecast Day 3, 18 hours 4 PM 90° 94° Partly Cloudy S   6 49% 68°
PORTAGE DES SIOUX, MO 63373 weather forecast Day 3, 21 hours 7 PM 86° 91° Partly Cloudy     SSE   8 59% 70°

ST. CHARLES, MO extended weather forecast

Thursday
6 AUG 2026
Friday
7 AUG 2026
Saturday
8 AUG 2026
Sunday
9 AUG 2026
Monday
10 AUG 2026
Low 72° Low 70° Low 70° Low 71° Low 69°
High 86° High 90° High 92° High 93° High 87°
PORTAGE DES SIOUX, MO 63373 weather forecast Day 4 PORTAGE DES SIOUX, MO 63373 weather forecast Day 5 PORTAGE DES SIOUX, MO 63373 weather forecast Day 6 PORTAGE DES SIOUX, MO 63373 weather forecast Day 7 <!--SEARCHED_TOWN_NAME--> weather forecast Day 8
Overcast
61% Rain
Mostly Cloudy
50% Rain
Partly Cloudy
44% Rain
Partly Cloudy
20% Rain
Partly Cloudy
25% Rain
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