10-Day Weather Forecast for O'Fallon, Missouri 63366 - The Weather Channel | weather.com
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10 Day Weather-

As of 2:33 pm CDT

Today

Windy Partly Cloudy/Wind
90°/35°
Rain drop 1%
Subtract

Day

90°
Windy
Rain drop
1%
NNW 22 mph

Windy with a mix of clouds and sun. High around 90F. Winds NNW at 20 to 30 mph. Higher wind gusts possible.

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  • Humidity
    Humidity36%
  • UV index
    UV Index5 of 11
  • Sunrise
    Sunrise7:02 am
  • Sunset
    Sunset7:16 pm

Night

35°
Windy
Mixed precipitation
3%
N 20 mph

Partly cloudy. Windy this evening. Low around 35F. Winds N at 20 to 30 mph. Higher wind gusts possible.

  • Humidity
    Humidity59%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise8:47 am
  • Moonset
    Moonset--
  • Moon Phase - Day 4 Waxing Crescent

Mon 23

Partly Cloudy Day Partly Cloudy
55°/37°
Rain drop 3%
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Day

55°
Partly Cloudy Day
Rain drop
3%
NE 9 mph

Some sun in the morning with increasing clouds during the afternoon. High near 55F. Winds NE at 5 to 10 mph.

  • Humidity
    Humidity46%
  • UV index
    UV Index5 of 11
  • Sunrise
    Sunrise7:01 am
  • Sunset
    Sunset7:17 pm

Night

37°
Cloudy
Mixed precipitation
1%
E 6 mph

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

  • Humidity
    Humidity48%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise9:29 am
  • Moonset
    Moonset12:04 am
  • Moon Phase - Day 5 Waxing Crescent

Tue 24

Partly Cloudy Day Partly Cloudy
65°/41°
Rain drop 1%
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Day

65°
Partly Cloudy Day
Rain drop
1%
SE 8 mph

Intervals of clouds and sunshine. High around 65F. Winds SE at 5 to 10 mph.

  • Humidity
    Humidity39%
  • UV index
    UV Index6 of 11
  • Sunrise
    Sunrise6:59 am
  • Sunset
    Sunset7:18 pm

Night

41°
Partly Cloudy Night
Rain drop
2%
SE 6 mph

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

  • Humidity
    Humidity49%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise10:22 am
  • Moonset
    Moonset1:18 am
  • Moon Phase - Day 6 Waxing Crescent

Wed 25

Partly Cloudy Day Partly Cloudy
81°/62°
Rain drop 3%
Add

Day

81°
Partly Cloudy Day
Rain drop
3%
S 10 mph

Sunshine and clouds mixed. High 81F. Winds S at 10 to 15 mph.

  • Humidity
    Humidity46%
  • UV index
    UV Index5 of 11
  • Sunrise
    Sunrise6:58 am
  • Sunset
    Sunset7:19 pm

Night

62°
Partly Cloudy Night
Rain drop
4%
SSW 10 mph

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

  • Humidity
    Humidity58%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise11:24 am
  • Moonset
    Moonset2:25 am
  • Moon Phase - Day 7 First Quarter

Thu 26

Mostly Clear Day Mostly Sunny
92°/42°
Rain drop 19%
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Day

92°
Mostly Clear Day
Rain drop
19%
SW 13 mph

Generally sunny despite a few afternoon clouds. High 92F. Winds SW at 10 to 15 mph.

  • Humidity
    Humidity47%
  • UV index
    UV Index6 of 11
  • Sunrise
    Sunrise6:56 am
  • Sunset
    Sunset7:20 pm

Night

42°
Showers
Rain drop
65%
N 13 mph

Showers likely and possibly a thunderstorm during the evening, then some lingering showers still possible overnight. Low 42F. Winds N at 10 to 20 mph. Chance of rain 70%.

  • Humidity
    Humidity60%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise12:34 pm
  • Moonset
    Moonset3:21 am
  • Moon Phase - Day 8 Waxing Gibbous

Fri 27

Scattered Showers Day AM Showers
53°/31°
Rain drop 54%
Add

Day

53°
Scattered Showers Day
Rain drop
54%
NNE 13 mph

Showers in the morning with some clearing in the afternoon. High 53F. Winds NNE at 10 to 15 mph. Chance of rain 50%.

  • Humidity
    Humidity58%
  • UV index
    UV Index4 of 11
  • Sunrise
    Sunrise6:55 am
  • Sunset
    Sunset7:21 pm

Night

31°
Partly Cloudy Night
Mixed precipitation
4%
N 8 mph

A few clouds. Low 31F. Winds N at 5 to 10 mph.

  • Humidity
    Humidity63%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise1:47 pm
  • Moonset
    Moonset4:07 am
  • Moon Phase - Day 9 Waxing Gibbous

Sat 28

Mostly Clear Day Mostly Sunny
59°/39°
Rain drop 4%
Add

Day

59°
Mostly Clear Day
Rain drop
4%
SSE 6 mph

Except for a few afternoon clouds, mainly sunny. High 59F. Winds SSE at 5 to 10 mph.

  • Humidity
    Humidity47%
  • UV index
    UV Index6 of 11
  • Sunrise
    Sunrise6:53 am
  • Sunset
    Sunset7:22 pm

Night

39°
Partly Cloudy Night
Mixed precipitation
4%
SSE 5 mph

Partly cloudy. Low 39F. Winds light and variable.

  • Humidity
    Humidity56%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise2:59 pm
  • Moonset
    Moonset4:43 am
  • Moon Phase - Day 10 Waxing Gibbous

Sun 29

Partly Cloudy Day Partly Cloudy
67°/48°
Rain drop 6%
Add

Day

67°
Partly Cloudy Day
Rain drop
6%
S 10 mph

Intervals of clouds and sunshine. High 67F. Winds S at 5 to 10 mph.

  • Humidity
    Humidity44%
  • UV index
    UV Index6 of 11
  • Sunrise
    Sunrise6:52 am
  • Sunset
    Sunset7:23 pm

Night

48°
Partly Cloudy Night
Rain drop
3%
S 7 mph

Partly cloudy skies during the evening will give way to cloudy skies overnight. Low 48F. Winds S at 5 to 10 mph.

  • Humidity
    Humidity52%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise4:08 pm
  • Moonset
    Moonset5:12 am
  • Moon Phase - Day 11 Waxing Gibbous

Mon 30

Mostly Cloudy Day Mostly Cloudy
77°/57°
Rain drop 12%
Add

Day

77°
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 77F. Winds SSW at 10 to 15 mph.

  • Humidity
    Humidity46%
  • UV index
    UV Index4 of 11
  • Sunrise
    Sunrise6:50 am
  • Sunset
    Sunset7:24 pm

Night

57°
Mostly Cloudy Night
Rain drop
24%
SSW 9 mph

Mostly cloudy skies. Low 57F. Winds SSW at 5 to 10 mph.

  • Humidity
    Humidity59%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise5:14 pm
  • Moonset
    Moonset5:38 am
  • Moon Phase - Day 12 Waxing Gibbous

Tue 31

Scattered Thunderstorms Scattered Thunderstorms
78°/59°
Rain drop 51%
Add

Day

78°
Scattered Thunderstorms
Rain drop
51%
SSW 11 mph

Rain showers in the morning with scattered thunderstorms arriving in the afternoon. High 78F. Winds SSW at 10 to 15 mph. Chance of rain 50%.

  • Humidity
    Humidity61%
  • UV index
    UV Index5 of 11
  • Sunrise
    Sunrise6:48 am
  • Sunset
    Sunset7:25 pm

Night

59°
Scattered Showers Night
Rain drop
35%
SSW 9 mph

A few showers in the evening, then clouds lingering overnight. Low 59F. Winds SSW at 5 to 10 mph. Chance of rain 40%.

  • Humidity
    Humidity70%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise6:19 pm
  • Moonset
    Moonset6:01 am
  • Moon Phase - Day 13 Waxing Gibbous

Wed 01

Showers Showers
77°/56°
Rain drop 59%
Add

Day

77°
Showers
Rain drop
59%
SSW 14 mph

Considerable cloudiness with occasional rain showers. High 77F. Winds SSW at 10 to 20 mph. Chance of rain 60%.

  • Humidity
    Humidity60%
  • UV index
    UV Index4 of 11
  • Sunrise
    Sunrise6:47 am
  • Sunset
    Sunset7:26 pm

Night

56°
Showers
Rain drop
59%
SSW 10 mph

Cloudy with showers. Low 56F. Winds SSW at 10 to 15 mph. Chance of rain 60%.

  • Humidity
    Humidity71%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise7:22 pm
  • Moonset
    Moonset6:23 am
  • Moon Phase - Day 14 Full Moon

Thu 02

Showers Showers
75°/52°
Rain drop 59%
Add

Day

75°
Showers
Rain drop
59%
SW 11 mph

Considerable cloudiness with occasional rain showers. High around 75F. Winds SW at 10 to 15 mph. Chance of rain 60%.

  • Humidity
    Humidity62%
  • UV index
    UV Index5 of 11
  • Sunrise
    Sunrise6:45 am
  • Sunset
    Sunset7:27 pm

Night

52°
Showers
Rain drop
59%
ESE 8 mph

Overcast with rain showers at times. Low 52F. Winds ESE at 5 to 10 mph. Chance of rain 60%.

  • Humidity
    Humidity74%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise8:26 pm
  • Moonset
    Moonset6:46 am
  • Moon Phase - Day 15 Full Moon

Fri 03

Scattered Showers Day AM Showers
72°/55°
Rain drop 33%
Add

Day

72°
Scattered Showers Day
Rain drop
33%
SSE 11 mph

A few showers early with mostly cloudy conditions later in the day. High 72F. Winds SSE at 10 to 15 mph. Chance of rain 30%.

  • Humidity
    Humidity64%
  • UV index
    UV Index4 of 11
  • Sunrise
    Sunrise6:44 am
  • Sunset
    Sunset7:28 pm

Night

55°
Showers
Rain drop
49%
SE 9 mph

Considerable cloudiness with occasional rain showers. Low near 55F. Winds SE at 5 to 10 mph. Chance of rain 50%.

  • Humidity
    Humidity73%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise9:28 pm
  • Moonset
    Moonset7:09 am
  • Moon Phase - Day 16 Waning Gibbous

Sat 04

Showers Showers
75°/55°
Rain drop 55%
Add

Day

75°
Showers
Rain drop
55%
S 12 mph

Cloudy with occasional rain showers. High near 75F. Winds S at 10 to 15 mph. Chance of rain 60%.

  • Humidity
    Humidity64%
  • UV index
    UV Index5 of 11
  • Sunrise
    Sunrise6:42 am
  • Sunset
    Sunset7:29 pm

Night

55°
Showers
Rain drop
52%
S 10 mph

Overcast with rain showers at times. Low near 55F. Winds S at 5 to 10 mph. Chance of rain 50%.

  • Humidity
    Humidity72%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise10:32 pm
  • Moonset
    Moonset7:36 am
  • Moon Phase - Day 17 Waning Gibbous

Sun 05

Showers Showers
74°/51°
Rain drop 45%
Add

Day

74°
Showers
Rain drop
45%
SW 11 mph

Cloudy with showers. High 74F. Winds SW at 10 to 15 mph. Chance of rain 50%.

  • Humidity
    Humidity60%
  • UV index
    UV Index6 of 11
  • Sunrise
    Sunrise6:41 am
  • Sunset
    Sunset7:29 pm

Night

51°
Rain
Rain drop
60%
SW 8 mph

Showers early, becoming a steady rain late. Low 51F. Winds SW at 5 to 10 mph. Chance of rain 60%.

  • Humidity
    Humidity74%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise11:34 pm
  • Moonset
    Moonset8:08 am
  • Moon Phase - Day 18 Waning Gibbous
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