Hourly Weather Forecast for O'Fallon, Missouri 63366 - The Weather Channel | Weather.com

Advertisement

Advertisement

Advertisement

Advertisement

Hourly Weather-

As of 11:00 am CDT

Friday, March 13

11 am

Partly Cloudy

57°

0%

WNW 17 mph

Partly Cloudy

Feels Like53°
WindWNW 17 mph
Humidity35%
UV Index3 of 11
Cloud Cover35%
Rain Amount0 in

11:15 am

Partly Cloudy

57°

0%

WNW 17 mph

11:30 am

Partly Cloudy

57°

0%

WNW 16 mph

11:45 am

Partly Cloudy

58°

0%

WNW 16 mph

12 pm

Partly Cloudy

58°

0%

WNW 16 mph

Partly Cloudy

Feels Like54°
WindWNW 16 mph
Humidity32%
UV Index4 of 11
Cloud Cover32%
Rain Amount0 in

1 pm

Partly Cloudy

58°

0%

WNW 15 mph

Partly Cloudy

Feels Like55°
WindWNW 15 mph
Humidity29%
UV Index5 of 11
Cloud Cover30%
Rain Amount0 in

2 pm

Partly Cloudy

58°

0%

WNW 14 mph

Partly Cloudy

Feels Like56°
WindWNW 14 mph
Humidity29%
UV Index5 of 11
Cloud Cover49%
Rain Amount0 in

3 pm

Partly Cloudy

59°

0%

WNW 14 mph

Partly Cloudy

Feels Like56°
WindWNW 14 mph
Humidity28%
UV Index3 of 11
Cloud Cover56%
Rain Amount0 in

4 pm

Partly Cloudy

59°

0%

WNW 12 mph

Partly Cloudy

Feels Like57°
WindWNW 12 mph
Humidity27%
UV Index2 of 11
Cloud Cover56%
Rain Amount0 in

Advertisement

5 pm

Mostly Cloudy

58°

0%

NW 11 mph

Mostly Cloudy

Feels Like56°
WindNW 11 mph
Humidity28%
UV Index1 of 11
Cloud Cover60%
Rain Amount0 in

6 pm

Mostly Cloudy

57°

0%

NW 9 mph

Mostly Cloudy

Feels Like55°
WindNW 9 mph
Humidity29%
UV Index0 of 11
Cloud Cover63%
Rain Amount0 in

7 pm

Mostly Cloudy

54°

0%

NNW 6 mph

Mostly Cloudy

Feels Like53°
WindNNW 6 mph
Humidity33%
UV Index0 of 11
Cloud Cover68%
Rain Amount0 in

8 pm

Partly Cloudy

51°

0%

NNW 4 mph

Partly Cloudy

Feels Like50°
WindNNW 4 mph
Humidity38%
UV Index0 of 11
Cloud Cover51%
Rain Amount0 in

9 pm

Partly Cloudy

48°

0%

N 4 mph

Partly Cloudy

Feels Like47°
WindN 4 mph
Humidity43%
UV Index0 of 11
Cloud Cover52%
Rain Amount0 in

10 pm

Mostly Cloudy

46°

1%

NNE 3 mph

Mostly Cloudy

Feels Like46°
WindNNE 3 mph
Humidity47%
UV Index0 of 11
Cloud Cover62%
Rain Amount0 in

11 pm

Partly Cloudy

44°

1%

NNE 3 mph

Partly Cloudy

Feels Like44°
WindNNE 3 mph
Humidity52%
UV Index0 of 11
Cloud Cover41%
Rain Amount0 in

Saturday, March 14

12 am

Partly Cloudy

43°

2%

NE 3 mph

Partly Cloudy

Feels Like43°
WindNE 3 mph
Humidity54%
UV Index0 of 11
Cloud Cover34%
Rain Amount0 in

1 am

Partly Cloudy

42°

2%

NE 2 mph

Partly Cloudy

Feels Like42°
WindNE 2 mph
Humidity56%
UV Index0 of 11
Cloud Cover33%
Rain Amount0 in

2 am

Mostly Clear

41°

2%

NE 3 mph

Mostly Clear

Feels Like39°
WindNE 3 mph
Humidity59%
UV Index0 of 11
Cloud Cover26%
Rain Amount0 in

3 am

Partly Cloudy

40°

1%

ENE 4 mph

Partly Cloudy

Feels Like37°
WindENE 4 mph
Humidity60%
UV Index0 of 11
Cloud Cover43%
Precip Amount0 in

4 am

Partly Cloudy

38°

1%

ENE 4 mph

Partly Cloudy

Feels Like35°
WindENE 4 mph
Humidity62%
UV Index0 of 11
Cloud Cover36%
Precip Amount0 in

Advertisement

5 am

Partly Cloudy

37°

2%

ENE 4 mph

Partly Cloudy

Feels Like33°
WindENE 4 mph
Humidity63%
UV Index0 of 11
Cloud Cover58%
Precip Amount0 in

6 am

Mostly Cloudy

37°

2%

ENE 5 mph

Mostly Cloudy

Feels Like33°
WindENE 5 mph
Humidity64%
UV Index0 of 11
Cloud Cover67%
Precip Amount0 in

7 am

Mostly Cloudy

37°

2%

E 5 mph

Mostly Cloudy

Feels Like33°
WindE 5 mph
Humidity64%
UV Index0 of 11
Cloud Cover62%
Precip Amount0 in

8 am

Mostly Cloudy

37°

1%

E 6 mph

Mostly Cloudy

Feels Like32°
WindE 6 mph
Humidity64%
UV Index0 of 11
Cloud Cover77%
Precip Amount0 in

9 am

Mostly Cloudy

40°

1%

E 8 mph

Mostly Cloudy

Feels Like35°
WindE 8 mph
Humidity58%
UV Index1 of 11
Cloud Cover69%
Rain Amount0 in

10 am

Partly Cloudy

44°

0%

ESE 10 mph

Partly Cloudy

Feels Like39°
WindESE 10 mph
Humidity51%
UV Index2 of 11
Cloud Cover59%
Rain Amount0 in

11 am

Partly Cloudy

48°

0%

ESE 12 mph

Partly Cloudy

Feels Like43°
WindESE 12 mph
Humidity44%
UV Index3 of 11
Cloud Cover59%
Rain Amount0 in

12 pm

Mostly Sunny

51°

0%

ESE 12 mph

Mostly Sunny

Feels Like47°
WindESE 12 mph
Humidity40%
UV Index4 of 11
Cloud Cover29%
Rain Amount0 in

1 pm

Sunny

55°

0%

SE 13 mph

Sunny

Feels Like51°
WindSE 13 mph
Humidity37%
UV Index5 of 11
Cloud Cover13%
Rain Amount0 in

2 pm

Sunny

58°

0%

SE 13 mph

Sunny

Feels Like55°
WindSE 13 mph
Humidity34%
UV Index5 of 11
Cloud Cover14%
Rain Amount0 in

3 pm

Sunny

60°

0%

SE 13 mph

Sunny

Feels Like57°
WindSE 13 mph
Humidity33%
UV Index4 of 11
Cloud Cover14%
Rain Amount0 in

4 pm

Sunny

62°

0%

SE 13 mph

Sunny

Feels Like60°
WindSE 13 mph
Humidity34%
UV Index2 of 11
Cloud Cover17%
Rain Amount0 in

Advertisement

5 pm

Mostly Sunny

62°

0%

SE 13 mph

Mostly Sunny

Feels Like61°
WindSE 13 mph
Humidity35%
UV Index1 of 11
Cloud Cover20%
Rain Amount0 in

6 pm

Mostly Sunny

62°

0%

SE 12 mph

Mostly Sunny

Feels Like61°
WindSE 12 mph
Humidity37%
UV Index0 of 11
Cloud Cover26%
Rain Amount0 in

7 pm

Partly Cloudy

60°

1%

SE 9 mph

Partly Cloudy

Feels Like59°
WindSE 9 mph
Humidity43%
UV Index0 of 11
Cloud Cover34%
Rain Amount0 in

8 pm

Partly Cloudy

59°

2%

SE 9 mph

Partly Cloudy

Feels Like57°
WindSE 9 mph
Humidity50%
UV Index0 of 11
Cloud Cover40%
Rain Amount0 in

9 pm

Partly Cloudy

58°

3%

SE 9 mph

Partly Cloudy

Feels Like56°
WindSE 9 mph
Humidity56%
UV Index0 of 11
Cloud Cover39%
Rain Amount0 in

10 pm

Partly Cloudy

57°

4%

SE 9 mph

Partly Cloudy

Feels Like55°
WindSE 9 mph
Humidity58%
UV Index0 of 11
Cloud Cover49%
Rain Amount0 in

11 pm

Partly Cloudy

56°

4%

SSE 10 mph

Partly Cloudy

Feels Like54°
WindSSE 10 mph
Humidity62%
UV Index0 of 11
Cloud Cover54%
Rain Amount0 in

Sunday, March 15

12 am

Mostly Cloudy

56°

4%

SSE 10 mph

Mostly Cloudy

Feels Like53°
WindSSE 10 mph
Humidity63%
UV Index0 of 11
Cloud Cover63%
Rain Amount0 in

1 am

Mostly Cloudy

55°

4%

SSE 9 mph

Mostly Cloudy

Feels Like53°
WindSSE 9 mph
Humidity64%
UV Index0 of 11
Cloud Cover63%
Rain Amount0 in

2 am

Mostly Cloudy

55°

4%

SSE 9 mph

Mostly Cloudy

Feels Like52°
WindSSE 9 mph
Humidity64%
UV Index0 of 11
Cloud Cover68%
Rain Amount0 in

3 am

Cloudy

55°

4%

SSE 10 mph

Cloudy

Feels Like52°
WindSSE 10 mph
Humidity66%
UV Index0 of 11
Cloud Cover84%
Rain Amount0 in

4 am

Cloudy

55°

4%

SSE 11 mph

Cloudy

Feels Like52°
WindSSE 11 mph
Humidity67%
UV Index0 of 11
Cloud Cover92%
Rain Amount0 in

Advertisement

5 am

Cloudy

56°

8%

SSE 11 mph

Cloudy

Feels Like53°
WindSSE 11 mph
Humidity68%
UV Index0 of 11
Cloud Cover94%
Rain Amount0 in

6 am

Cloudy

56°

11%

SSE 12 mph

Cloudy

Feels Like53°
WindSSE 12 mph
Humidity70%
UV Index0 of 11
Cloud Cover94%
Rain Amount0 in

7 am

Mostly Cloudy

57°

13%

S 13 mph

Mostly Cloudy

Feels Like54°
WindS 13 mph
Humidity72%
UV Index0 of 11
Cloud Cover74%
Rain Amount0 in

8 am

Cloudy

57°

13%

S 14 mph

Cloudy

Feels Like54°
WindS 14 mph
Humidity73%
UV Index0 of 11
Cloud Cover93%
Rain Amount0 in

9 am

Cloudy

60°

18%

S 15 mph

Cloudy

Feels Like57°
WindS 15 mph
Humidity72%
UV Index0 of 11
Cloud Cover91%
Rain Amount0 in

10 am

Cloudy

62°

9%

S 17 mph

Cloudy

Feels Like60°
WindS 17 mph
Humidity68%
UV Index1 of 11
Cloud Cover85%
Rain Amount0 in

Advertisement

Radar

© 2026 Mapbox © OpenStreetMap|Improve this map

Lonely Planet

7 Top Hikes In Kyoto For Scenic Views And Cultural Encounters

10 Of The Best Places For Stargazing In The USA

16 Of The Best Things To Do In London

The Best Time To Visit Europe

Advertisement

Advertisement

Don't Miss

Winter Storm In Upper Midwest Could Bring Blizzard Conditions, Record Snow To Parts Of Wisconsin, Michigan

Another Severe Outbreak Ahead With Damaging Winds

Caught On Camera: Man Saves Dog From Icy Central Park Pond

El Niño Coming This Summer, Says NOAA In Update

Advertisement

We Love Our Critters

Retreat! Penguins’ Instant Regret After Jumping On Ice Floe

Newly Identified Tick-Borne Bacterium In US Dogs

Hibernating Bears Wake Up From Winter

Hibernating Bears Wake Up From Winter

Travel

And The Best State For An Adventure Vacation Is ...

California Wildflower Superblooms Are Back In 2026

3 Big Changes Coming To National Parks In 2026

‘Rare And Remarkable’: Lake Superior Ice Caves Reopen

Seasonal Hub

St. Patrick's Day Parades: NYC, Chicago, Boston And Savannah Celebrate In Four Different Seasons

When Are The Average Last Freezes In The US?

Allergy Season Grows Longer – Especially In These Places

Record Warmth Is Almost Tripling Record Cold This Year

Advertisement