10-Day Weather Forecast for O'Fallon, St. Louis, Missouri - The Weather Channel | weather.com
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10 Day Weather-

As of 6:27 pm CDT

Tonight

Windy Partly Cloudy/Wind
--/37°
Rain drop 3%
Subtract

Night

37°
Windy
Mixed precipitation
3%
N 25 mph

Partly cloudy. Gusty winds diminishing after midnight. Low 37F. Winds N at 25 to 35 mph. Higher wind gusts possible.

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  • Humidity
    Humidity57%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise8:45 am
  • Moonset
    Moonset--
  • Moon Phase - Day 4 Waxing Crescent

Mon 23

Partly Cloudy Day Partly Cloudy
56°/37°
Rain drop 3%
Add

Day

56°
Partly Cloudy Day
Rain drop
3%
NNE 11 mph

Partly cloudy skies. High 56F. Winds NNE at 10 to 15 mph.

  • Humidity
    Humidity45%
  • UV index
    UV Index5 of 11
  • Sunrise
    Sunrise6:59 am
  • Sunset
    Sunset7:15 pm

Night

37°
Cloudy
Mixed precipitation
1%
E 8 mph

Cloudy. Low 37F. Winds E at 5 to 10 mph.

  • Humidity
    Humidity48%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise9:28 am
  • Moonset
    Moonset12:02 am
  • Moon Phase - Day 5 Waxing Crescent

Tue 24

Partly Cloudy Day AM Clouds/PM Sun
64°/41°
Rain drop 1%
Add

Day

64°
Partly Cloudy Day
Rain drop
1%
SE 9 mph

Cloudy skies early will become partly cloudy later in the day. High 64F. Winds SE at 5 to 10 mph.

  • Humidity
    Humidity38%
  • UV index
    UV Index6 of 11
  • Sunrise
    Sunrise6:58 am
  • Sunset
    Sunset7:16 pm

Night

41°
Partly Cloudy Night
Rain drop
3%
SE 8 mph

A few clouds from time to time. Low 41F. Winds SE at 5 to 10 mph.

  • Humidity
    Humidity51%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise10:21 am
  • Moonset
    Moonset1:16 am
  • Moon Phase - Day 6 Waxing Crescent

Wed 25

Partly Cloudy Day Partly Cloudy
78°/62°
Rain drop 4%
Add

Day

78°
Partly Cloudy Day
Rain drop
4%
S 12 mph

Partly cloudy. High 78F. Winds S at 10 to 15 mph.

  • Humidity
    Humidity46%
  • UV index
    UV Index5 of 11
  • Sunrise
    Sunrise6:56 am
  • Sunset
    Sunset7:17 pm

Night

62°
Partly Cloudy Night
Rain drop
6%
SSW 11 mph

A few clouds. Low 62F. Winds SSW at 10 to 15 mph.

  • Humidity
    Humidity61%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise11:23 am
  • Moonset
    Moonset2:23 am
  • Moon Phase - Day 7 First Quarter

Thu 26

Mostly Clear Day Mostly Sunny
92°/45°
Rain drop 18%
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Day

92°
Mostly Clear Day
Rain drop
18%
SW 13 mph

Sunshine and some clouds. High 92F. Winds SW at 10 to 20 mph.

  • Humidity
    Humidity50%
  • UV index
    UV Index6 of 11
  • Sunrise
    Sunrise6:54 am
  • Sunset
    Sunset7:18 pm

Night

45°
Scattered Thunderstorms Night
Rain drop
57%
N 14 mph

Variable clouds with showers and scattered thunderstorms. Storms more numerous during the evening. Low near 45F. Winds N at 10 to 20 mph. Chance of rain 60%.

  • Humidity
    Humidity61%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise12:33 pm
  • Moonset
    Moonset3:19 am
  • Moon Phase - Day 8 Waxing Gibbous

Fri 27

Scattered Showers Day AM Showers
53°/34°
Rain drop 51%
Add

Day

53°
Scattered Showers Day
Rain drop
51%
NNE 14 mph

Rain showers early with overcast skies later in the day. High 53F. Winds NNE at 10 to 20 mph. Chance of rain 50%.

  • Humidity
    Humidity60%
  • UV index
    UV Index4 of 11
  • Sunrise
    Sunrise6:53 am
  • Sunset
    Sunset7:19 pm

Night

34°
Partly Cloudy Night
Mixed precipitation
3%
NNE 10 mph

Partly cloudy skies. Low 34F. Winds NNE at 5 to 10 mph.

  • Humidity
    Humidity60%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise1:45 pm
  • Moonset
    Moonset4:04 am
  • Moon Phase - Day 9 Waxing Gibbous

Sat 28

Sunny Sunny
58°/41°
Rain drop 3%
Add

Day

58°
Sunny
Rain drop
3%
E 7 mph

Sunny skies. High 58F. Winds E at 5 to 10 mph.

  • Humidity
    Humidity45%
  • UV index
    UV Index6 of 11
  • Sunrise
    Sunrise6:51 am
  • Sunset
    Sunset7:20 pm

Night

41°
Partly Cloudy Night
Rain drop
4%
SSE 6 mph

A few clouds from time to time. Low 41F. Winds SSE at 5 to 10 mph.

  • Humidity
    Humidity53%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise2:57 pm
  • Moonset
    Moonset4:41 am
  • Moon Phase - Day 10 Waxing Gibbous

Sun 29

Partly Cloudy Day Partly Cloudy
68°/51°
Rain drop 12%
Add

Day

68°
Partly Cloudy Day
Rain drop
12%
S 10 mph

Partly cloudy. High 68F. Winds S at 10 to 15 mph.

  • Humidity
    Humidity42%
  • UV index
    UV Index6 of 11
  • Sunrise
    Sunrise6:50 am
  • Sunset
    Sunset7:21 pm

Night

51°
Partly Cloudy Night
Rain drop
13%
S 9 mph

Mostly cloudy skies early, then partly cloudy after midnight. Low 51F. Winds S at 5 to 10 mph.

  • Humidity
    Humidity50%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise4:06 pm
  • Moonset
    Moonset5:10 am
  • Moon Phase - Day 11 Waxing Gibbous

Mon 30

Mostly Cloudy Day Mostly Cloudy
79°/59°
Rain drop 12%
Add

Day

79°
Mostly Cloudy Day
Rain drop
12%
SSW 12 mph

Partly cloudy skies in the morning will give way to cloudy skies during the afternoon. High 79F. Winds SSW at 10 to 15 mph.

  • Humidity
    Humidity45%
  • UV index
    UV Index5 of 11
  • Sunrise
    Sunrise6:48 am
  • Sunset
    Sunset7:22 pm

Night

59°
Mostly Cloudy Night
Rain drop
24%
SSW 10 mph

Mostly cloudy. Low 59F. Winds SSW at 10 to 15 mph.

  • Humidity
    Humidity58%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise5:13 pm
  • Moonset
    Moonset5:36 am
  • Moon Phase - Day 12 Waxing Gibbous

Tue 31

Showers Showers
79°/61°
Rain drop 53%
Add

Day

79°
Showers
Rain drop
53%
SSW 12 mph

Cloudy with showers. High 79F. Winds SSW at 10 to 15 mph. Chance of rain 50%.

  • Humidity
    Humidity57%
  • UV index
    UV Index4 of 11
  • Sunrise
    Sunrise6:47 am
  • Sunset
    Sunset7:23 pm

Night

61°
Scattered Showers Night
Rain drop
32%
SSW 11 mph

Partly cloudy skies early giving way to a few showers after midnight. Low 61F. Winds SSW at 10 to 15 mph. Chance of rain 30%.

  • Humidity
    Humidity65%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise6:17 pm
  • Moonset
    Moonset5:59 am
  • Moon Phase - Day 13 Waxing Gibbous

Wed 01

Showers Showers
78°/58°
Rain drop 48%
Add

Day

78°
Showers
Rain drop
48%
SSW 14 mph

Overcast with rain showers at times. High 78F. Winds SSW at 10 to 20 mph. Chance of rain 50%.

  • Humidity
    Humidity57%
  • UV index
    UV Index4 of 11
  • Sunrise
    Sunrise6:45 am
  • Sunset
    Sunset7:24 pm

Night

58°
Showers
Rain drop
59%
SSW 12 mph

Overcast with rain showers at times. Low 58F. Winds SSW at 10 to 15 mph. Chance of rain 60%.

  • Humidity
    Humidity69%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise7:20 pm
  • Moonset
    Moonset6:22 am
  • Moon Phase - Day 14 Full Moon

Thu 02

Showers Showers
75°/54°
Rain drop 59%
Add

Day

75°
Showers
Rain drop
59%
SSW 13 mph

Overcast with rain showers at times. High around 75F. Winds SSW at 10 to 15 mph. Chance of rain 60%.

  • Humidity
    Humidity64%
  • UV index
    UV Index5 of 11
  • Sunrise
    Sunrise6:44 am
  • Sunset
    Sunset7:25 pm

Night

54°
Showers
Rain drop
51%
SSE 10 mph

Considerable cloudiness with occasional rain showers. Low 54F. Winds SSE at 10 to 15 mph. Chance of rain 50%.

  • Humidity
    Humidity67%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise8:23 pm
  • Moonset
    Moonset6:44 am
  • Moon Phase - Day 15 Full Moon

Fri 03

Scattered Showers Day AM Showers
73°/57°
Rain drop 36%
Add

Day

73°
Scattered Showers Day
Rain drop
36%
SSE 12 mph

Showers in the morning with some clearing in the afternoon. High 73F. Winds SSE at 10 to 15 mph. Chance of rain 40%.

  • Humidity
    Humidity60%
  • UV index
    UV Index5 of 11
  • Sunrise
    Sunrise6:42 am
  • Sunset
    Sunset7:26 pm

Night

57°
Showers
Rain drop
57%
SSE 11 mph

Cloudy with occasional rain showers. Low 57F. Winds SSE at 10 to 15 mph. Chance of rain 60%.

  • Humidity
    Humidity70%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise9:26 pm
  • Moonset
    Moonset7:08 am
  • Moon Phase - Day 16 Waning Gibbous

Sat 04

Showers Showers
76°/56°
Rain drop 59%
Add

Day

76°
Showers
Rain drop
59%
S 13 mph

Cloudy with showers. High 76F. Winds S at 10 to 15 mph. Chance of rain 60%.

  • Humidity
    Humidity65%
  • UV index
    UV Index4 of 11
  • Sunrise
    Sunrise6:41 am
  • Sunset
    Sunset7:27 pm

Night

56°
Showers
Rain drop
59%
S 11 mph

Considerable cloudiness with occasional rain showers. Low 56F. Winds S at 10 to 15 mph. Chance of rain 60%.

  • Humidity
    Humidity74%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise10:30 pm
  • Moonset
    Moonset7:35 am
  • Moon Phase - Day 17 Waning Gibbous

Sun 05

Showers Showers
70°/50°
Rain drop 46%
Add

Day

70°
Showers
Rain drop
46%
WSW 13 mph

Showers early becoming less numerous later in the day. High around 70F. Winds WSW at 10 to 20 mph. Chance of rain 50%.

  • Humidity
    Humidity64%
  • UV index
    UV Index6 of 11
  • Sunrise
    Sunrise6:39 am
  • Sunset
    Sunset7:28 pm

Night

50°
Showers
Rain drop
58%
W 11 mph

Considerable cloudiness with occasional rain showers. Low around 50F. Winds W at 10 to 15 mph. Chance of rain 60%.

  • Humidity
    Humidity74%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise11:31 pm
  • Moonset
    Moonset8:06 am
  • Moon Phase - Day 18 Waning Gibbous
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