PORTAGE DES SIOUX, MO 63373 Weather Forecast & Current Conditions
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  63373 WEATHER WARNINGS (SEVERE T-STORM & TORNADO)
 CURRENT WEATHER

ST. CHARLES, MO
Current Weather
9:54 AM CDT JUN 25, 2026
Clear
79°F
Feels Like: 82°F
Dewpoint: 70°F
Rel. Hum.: 74%
Visibility: 10 miles
Wind: SW at 6 mph
Pressure: 29.97 inches
Last 72 hours

Local Area Snow Depth

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(Automated weather data from NWS/FAA)
  63373 WEATHER FORECAST
10-Day model forecast maps
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PORTAGE DES SIOUX, MO 63373
Weather Forecast

 Snowfall Forecast pages
Snow Depth pages
TODAY
Partly sunny with a slight chance of showers and thunderstorms this morning, then mostly cloudy with a chance of showers and thunderstorms this afternoon. Some thunderstorms may produce heavy rainfall this afternoon. Highs in the mid 80s. Southwest winds around 5 mph, becoming north this afternoon. Chance of rain 50 percent.
TONIGHT
Cloudy with a chance of thunderstorms. A chance of showers in the evening, then showers after midnight. Some thunderstorms may produce heavy rainfall. Lows in the upper 60s. East winds around 5 mph. Chance of rain 90 percent.
FRIDAY
Mostly cloudy. Showers with a chance of thunderstorms in the morning, then a chance of showers and thunderstorms in the afternoon. Some thunderstorms may produce heavy rainfall in the morning. Highs in the lower 80s. South winds 5 to 10 mph. Chance of rain 90 percent.
FRIDAY NIGHT
Showers likely with a chance of thunderstorms. Lows in the upper 60s. South winds 5 to 10 mph. Chance of rain 70 percent.
SATURDAY
Mostly cloudy in the morning, then becoming partly sunny. A chance of showers and thunderstorms. Humid with highs in the upper 80s. South winds around 5 mph. Chance of rain 50 percent.
SATURDAY NIGHT
Partly cloudy with a slight chance of showers and thunderstorms. Lows in the lower 70s. Chance of rain 20 percent.
SUNDAY THROUGH MONDAY
Mostly clear. Hot. Highs in the mid 90s. Lows in the mid 70s. Heat index values up to 110.
MONDAY NIGHT
Clear. Lows in the mid 70s. Heat index values up to 110 early in the evening.
TUESDAY
Sunny, hot with highs in the upper 90s. Heat index values up to 110 in the afternoon.
TUESDAY NIGHT
Clear. Lows in the mid 70s. Heat index values up to 115 early in the evening.
WEDNESDAY
Sunny, hot with highs in the upper 90s. Heat index values up to 110 in the afternoon.

  63373 WEATHER SATELLITE LOOPS
Visible Weather Satellite
PORTAGE DES SIOUX, MO 63373
Infrared Weather Satellite
PORTAGE DES SIOUX, MO 63373
  63373 WEATHER RADAR LOOP
NEXRAD Weather Radar
PORTAGE DES SIOUX, MO 63373
 MOS COMPUTER WEATHER FORECAST

ST. CHARLES, MO 3 hourly weather forecast
weather forecast created  7:00 PM CDT  6/24/2026
Thursday
25 JUN 2026		 PORTAGE DES SIOUX, MO 63373 weather forecast Day 1, 0 hours 1 AM 71° 71° Partly Cloudy 35%
RAIN
.25–.5 in		 0% Thunder
( 13% severe)		 W   2 90% 68°
Low 68° PORTAGE DES SIOUX, MO 63373 weather forecast Day 1, 3 hours 4 AM 69° 69° Partly Cloudy   CALM 93% 67°
High 85° PORTAGE DES SIOUX, MO 63373 weather forecast Day 1, 6 hours 7 AM 71° 71° Mostly Cloudy 24%
RAIN
.01–.1 in		 0% Thunder
( 19% severe)		   CALM 90% 68°

Mostly Cloudy

Rain Likely

 PORTAGE DES SIOUX, MO 63373 weather forecast Day 1, 9 hours 10 AM 78° 80° Mostly Cloudy   CALM 71% 68°
PORTAGE DES SIOUX, MO 63373 weather forecast Day 1, 12 hours 1 PM 82° 85° Mostly Cloudy 52%
RAIN
***		 0% Thunder
( 48% severe)		 NW   1 63% 68°
PORTAGE DES SIOUX, MO 63373 weather forecast Day 1, 15 hours 4 PM 83° 86° Mostly Cloudy NNE   3 61% 68°
PORTAGE DES SIOUX, MO 63373 weather forecast Day 1, 18 hours 7 PM 81° 84° Mostly Cloudy 66%
RAIN
***		 0% Thunder
( 45% severe)		 NE   6 65% 68°
PORTAGE DES SIOUX, MO 63373 weather forecast Day 1, 21 hours 10 PM 75° 75° Mostly Cloudy ENE   5 82% 69°
Friday
26 JUN 2026		 PORTAGE DES SIOUX, MO 63373 weather forecast Day 2, 0 hours 1 AM 73° 73° Mostly Cloudy 79%
RAIN
***		 0% Thunder
( 34% severe)		 E   5 84% 68°
Low 67° PORTAGE DES SIOUX, MO 63373 weather forecast Day 2, 3 hours 4 AM 71° 71° Mostly Cloudy E   7 93% 69°
High 81° PORTAGE DES SIOUX, MO 63373 weather forecast Day 2, 6 hours 7 AM 72° 72° Mostly Cloudy 86%
RAIN
***		 0% Thunder
( 24% severe)		 SE   8 90% 69°

Mostly Cloudy

Rain Likely

 PORTAGE DES SIOUX, MO 63373 weather forecast Day 2, 9 hours 10 AM 74° 74° Mostly Cloudy SSE   8 84% 69°
PORTAGE DES SIOUX, MO 63373 weather forecast Day 2, 12 hours 1 PM 77° 79° Mostly Cloudy 70%
RAIN
***		 0% Thunder
( 51% severe)		 S   9 79% 70°
PORTAGE DES SIOUX, MO 63373 weather forecast Day 2, 15 hours 4 PM 81° 85° Mostly Cloudy SSW   9 72% 71°
PORTAGE DES SIOUX, MO 63373 weather forecast Day 2, 18 hours 7 PM 80° 83° Partly Cloudy 39%
RAIN
.5–1 in		 0% Thunder
( 39% severe)		 W   8 72% 70°
PORTAGE DES SIOUX, MO 63373 weather forecast Day 2, 21 hours 10 PM 74° 74° Mostly Cloudy NE   5 87% 70°

ST. CHARLES, MO extended weather forecast
Saturday
27 JUN 2026		 Sunday
28 JUN 2026		 Monday
29 JUN 2026		 Tuesday
30 JUN 2026		 Wednesday
1 JUL 2026
Low 72° Low 71° Low 73° Low 74° Low 77°
High 89° High 99° High 101° High 99° High 96°
PORTAGE DES SIOUX, MO 63373 weather forecast Day 3 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
Overcast
72% Rain		 Partly Cloudy
26% Rain		 Clear
13% Rain		 Clear
19% Rain		 Partly Cloudy
22% Rain
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