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
3:54 PM CDT AUG 10, 2026
Clear
91°F
Feels Like: 102°F
Dewpoint: 75°F
Rel. Hum.: 60%
Visibility: 10 miles
Wind: SSW at 8 mph
Pressure: 29.96 inches
Last 72 hours

Local Area Snow Depth

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  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
TONIGHT
Partly cloudy. Lows in the upper 70s. South winds 5 to 10 mph. Heat index values up to 103 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
Partly cloudy. Lows in the upper 70s. Southwest winds around 5 mph. Heat index values up to 111 early in the evening.
WEDNESDAY
Mostly sunny with a slight chance of showers and thunderstorms. Humid with highs in the lower 90s. Southwest winds 5 to 10 mph. Chance of rain 20 percent. Heat index values up to 106.
WEDNESDAY NIGHT
Partly cloudy. A slight chance of showers and thunderstorms after midnight. Humid with lows in the mid 70s. South winds around 5 mph. Chance of rain 20 percent. Heat index values up to 104 early in the evening.
THURSDAY
Mostly sunny with a slight chance of showers and thunderstorms. Highs in the lower 90s. Chance of rain 20 percent. Heat index values up to 110.
THURSDAY 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 50 percent. Heat index values up to 105 early in the evening.
FRIDAY
Partly sunny. Highs in the lower 90s. Heat index values up to 105 in the afternoon.
FRIDAY NIGHT
Partly cloudy. Lows in the mid 70s. Heat index values up to 105 early in the evening.
SATURDAY AND SATURDAY NIGHT
Mostly clear. Hot. Highs in the mid 90s. Lows in the mid 70s. Heat index values up to 105.
SUNDAY
Mostly sunny. Highs in the mid 90s. Heat index values up to 105.
SUNDAY 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 lower 70s. Chance of rain 30 percent. Heat index values up to 100 early in the evening.
MONDAY
Partly sunny. A slight chance of showers in the morning. Highs in the mid 80s. Chance of rain 20 percent.

  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 AM CDT  8/10/2026
Monday
10 AUG 2026		 PORTAGE DES SIOUX, MO 63373 weather forecast Day 1, 12 hours 1 PM 91° 100° Mostly Cloudy 3%

 0% Thunder
( 10% severe)		 SSW   12 56% 73°
High 96° PORTAGE DES SIOUX, MO 63373 weather forecast Day 1, 15 hours 4 PM 95° 105° Mostly Cloudy SSW   10 49% 73°
Mostly Cloudy



 PORTAGE DES SIOUX, MO 63373 weather forecast Day 1, 18 hours 7 PM 93° 103° Partly Cloudy 3%

 0% Thunder
( 16% severe)		 SSW   6 54% 74°
PORTAGE DES SIOUX, MO 63373 weather forecast Day 1, 21 hours 10 PM 85° 91° Partly Cloudy S   8 65% 72°
Tuesday
11 AUG 2026		 PORTAGE DES SIOUX, MO 63373 weather forecast Day 2, 0 hours 1 AM 82° 86° Partly Cloudy 3%

 0% Thunder
( 10% severe)		 SSW   8 67% 70°
Low 77° PORTAGE DES SIOUX, MO 63373 weather forecast Day 2, 3 hours 4 AM 80° 83° Partly Cloudy S   8 72% 70°
High 97° PORTAGE DES SIOUX, MO 63373 weather forecast Day 2, 6 hours 7 AM 80° 83° Partly Cloudy 3%

 0% Thunder
( 7% severe)		 S   8 72% 70°

Partly Cloudy



 PORTAGE DES SIOUX, MO 63373 weather forecast Day 2, 9 hours 10 AM 89° 96° Partly Cloudy SW   12 57% 72°
PORTAGE DES SIOUX, MO 63373 weather forecast Day 2, 12 hours 1 PM 95° 105° Partly Cloudy 10%
RAIN
<.01 in		 0% Thunder
( 13% severe)		 SW   12 49% 73°
PORTAGE DES SIOUX, MO 63373 weather forecast Day 2, 15 hours 4 PM 97° 107° Partly Cloudy SW   10 46% 73°
PORTAGE DES SIOUX, MO 63373 weather forecast Day 2, 18 hours 7 PM 93° 103° Mostly Cloudy 2%

 0% Thunder
( 16% severe)		 SW   7 54% 74°
PORTAGE DES SIOUX, MO 63373 weather forecast Day 2, 21 hours 10 PM 85° 91° Partly Cloudy SSW   7 65% 72°
Wednesday
12 AUG 2026		 PORTAGE DES SIOUX, MO 63373 weather forecast Day 3, 0 hours 1 AM 82° 86° Partly Cloudy 29%
RAIN
***		 0% Thunder
( 17% severe)		 SSW   8 69% 71°
Low 76° PORTAGE DES SIOUX, MO 63373 weather forecast Day 3, 3 hours 4 AM 79° 82° Partly Cloudy SW   8 74% 70°
High 95° PORTAGE DES SIOUX, MO 63373 weather forecast Day 3, 6 hours 7 AM 80° 83° Partly Cloudy 14%
RAIN
<.01 in		 0% Thunder
( 21% severe)		 SW   8 72% 70°

Partly Cloudy



 PORTAGE DES SIOUX, MO 63373 weather forecast Day 3, 9 hours 10 AM 88° 95° Partly Cloudy SW   10 59% 72°
PORTAGE DES SIOUX, MO 63373 weather forecast Day 3, 15 hours 1 PM 93° 103° Partly Cloudy 8%

 0% Thunder
( 33% severe)		 W   10 54% 74°
PORTAGE DES SIOUX, MO 63373 weather forecast Day 3, 18 hours 4 PM 95° 105° Partly Cloudy W   10 49% 73°
PORTAGE DES SIOUX, MO 63373 weather forecast Day 3, 21 hours 7 PM 91° 102° Partly Cloudy     SSW   6 60% 75°

ST. CHARLES, MO extended weather forecast
Thursday
13 AUG 2026		 Friday
14 AUG 2026		 Saturday
15 AUG 2026		 Sunday
16 AUG 2026		 Monday
17 AUG 2026
Low 70° Low 74° Low 70° Low 72° Low 69°
High 100° High 94° High 101° High 94° High 89°
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
Partly Cloudy
27% Rain		 Overcast
25% Rain		 Partly Cloudy
19% Rain		 Partly Cloudy
23% Rain		 Overcast
34% Rain
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