PORTAGE DES SIOUX, MO 63373 Weather Forecast & Current Conditions

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ST. CHARLES, MO
Current Weather

10:54 PM CST JAN 18, 2026
Overcast
30°F
Feels Like: 20°F
Dewpoint: 14°F
Rel. Hum.: 48%
Visibility: 10 miles
Wind: NW at 13 mph, gusts to 22
Pressure: 30.05 inches
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PORTAGE DES SIOUX, MO 63373
Weather Forecast

Snowfall Forecast pages
Snow Depth pages
TONIGHT
Partly cloudy. Lows around 11. West winds 5 to 10 mph with gusts up to 20 mph, increasing to northwest 15 to 20 mph with gusts up to 35 mph after midnight. Wind chill values as low as 3 below after midnight.
MARTIN LUTHER KING JR DAY
Sunny, cooler with highs in the lower 20s. Northwest winds 15 to 20 mph with gusts up to 30 mph. Wind chill values as low as 6 below in the morning.
MONDAY NIGHT
Mostly clear. Lows around 12. Southwest winds around 5 mph.
TUESDAY
Mostly sunny. Not as cool with highs in the upper 30s. Southwest winds 5 to 10 mph.
TUESDAY NIGHT
Partly cloudy in the evening, then becoming mostly cloudy. Not as cool with lows in the upper 20s. Temperature rising into the mid 30s after midnight. South winds 10 to 15 mph with gusts up to 25 mph.
WEDNESDAY AND WEDNESDAY NIGHT
Partly cloudy. Highs in the mid 40s. Lows in the lower 20s.
THURSDAY
Sunny, cooler with highs in the mid 30s.
THURSDAY NIGHT
Partly cloudy in the evening, then becoming mostly cloudy. Lows in the lower 20s.
FRIDAY
Partly sunny in the morning, then becoming mostly cloudy. Highs in the upper 30s.
FRIDAY NIGHT
Mostly cloudy. A chance of snow and rain in the evening, then a slight chance of snow after midnight. Lows 15 to 20. Chance of precipitation 30 percent. Wind chill values as low as 5 above after midnight.
SATURDAY
Mostly cloudy. A slight chance of snow in the morning, then a chance of snow in the afternoon. Cooler with highs in the mid 20s. Chance of snow 30 percent. Wind chill values as low as zero.
SATURDAY NIGHT
Mostly cloudy. A chance of snow, mainly in the evening. Cooler with lows 5 to 10 above. Chance of snow 40 percent. Wind chill values as low as 5 below after midnight.
SUNDAY
Mostly sunny. A slight chance of snow in the morning. Highs around 20. Chance of snow 20 percent. Wind chill values as low as 5 below in the morning.

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  6:00 PM CST  1/18/2026
Monday
19 JAN 2026
PORTAGE DES SIOUX, MO 63373 weather forecast Day 1, 0 hours 12 AM 23° 11° Mostly Cloudy 0%

0% Thunder
( 0% severe)
NW   14 59% 12°
Low 10° PORTAGE DES SIOUX, MO 63373 weather forecast Day 1, 3 hours 3 AM 17° Partly Cloudy NW   17 49%
High 20° PORTAGE DES SIOUX, MO 63373 weather forecast Day 1, 6 hours 6 AM 12° -5° Clear 0%

0% Thunder
( 0% severe)
NW   17 45% -3°

Partly Cloudy



PORTAGE DES SIOUX, MO 63373 weather forecast Day 1, 9 hours 9 AM 11° -6° Partly Cloudy NW   16 43% -5°
PORTAGE DES SIOUX, MO 63373 weather forecast Day 1, 12 hours 12 PM 16° Partly Cloudy 0%

0% Thunder
( 0% severe)
WNW   15 30% -7°
PORTAGE DES SIOUX, MO 63373 weather forecast Day 1, 15 hours 3 PM 20° Clear WNW   13 24% -7°
PORTAGE DES SIOUX, MO 63373 weather forecast Day 1, 18 hours 6 PM 16° Clear 0%

0% Thunder
( 0% severe)
W   6 33% -5°
PORTAGE DES SIOUX, MO 63373 weather forecast Day 1, 21 hours 9 PM 13° Partly Cloudy W   3 43% -3°
Tuesday
20 JAN 2026
PORTAGE DES SIOUX, MO 63373 weather forecast Day 2, 0 hours 12 AM 11° Clear 0%

0% Thunder
( 0% severe)
WSW   3 50% -2°
Low 9° PORTAGE DES SIOUX, MO 63373 weather forecast Day 2, 3 hours 3 AM 11° Mostly Cloudy SW   3 53% -1°
High 38° PORTAGE DES SIOUX, MO 63373 weather forecast Day 2, 6 hours 6 AM 12° Mostly Cloudy 0%

0% Thunder
( 0% severe)
SSE   5 50% -1°

Partly Cloudy



PORTAGE DES SIOUX, MO 63373 weather forecast Day 2, 9 hours 9 AM 19° 10° Partly Cloudy S   7 42%
PORTAGE DES SIOUX, MO 63373 weather forecast Day 2, 12 hours 12 PM 31° 23° Partly Cloudy 0%

0% Thunder
( 0% severe)
SW   9 29%
PORTAGE DES SIOUX, MO 63373 weather forecast Day 2, 15 hours 3 PM 37° 30° Partly Cloudy SSW   9 29% 10°
PORTAGE DES SIOUX, MO 63373 weather forecast Day 2, 18 hours 6 PM 31° 24° Partly Cloudy 0%

0% Thunder
( 0% severe)
SSE   8 41% 12°
PORTAGE DES SIOUX, MO 63373 weather forecast Day 2, 21 hours 9 PM 30° 21° Partly Cloudy S   10 43% 12°

ST. CHARLES, MO extended weather forecast

BAD DAY
BAD DATE
BAD DAY
BAD DATE
BAD DAY
BAD DATE
BAD DAY
BAD DATE
BAD DAY
BAD DATE
Low 11° Low 23° Low 22° Low 23° Low 23°
High 35° High 45° High 35° High 41° High 24°
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
Partly Cloudy
3% Snow
Partly Cloudy
11% Snow
Clear
10% Snow
Mostly Cloudy
29% Snow
Overcast
64% Rain/Snow
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