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

As of 3:55 am CDT

Today

Mostly Clear Day Mostly Sunny
64°/56°
Rain drop 2%
Subtract

Day

64°
Mostly Clear Day
Rain drop
2%
ESE 13 mph

Partly cloudy. High 64F. Winds ESE at 10 to 15 mph.

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  • Humidity
    Humidity50%
  • UV index
    UV Index5 of 11
  • Sunrise
    Sunrise7:15 am
  • Sunset
    Sunset7:08 pm

Night

56°
Mostly Cloudy Night
Rain drop
4%
SSE 13 mph

Partly cloudy skies early will give way to cloudy skies late. Low 56F. Winds SSE at 10 to 20 mph.

  • Humidity
    Humidity59%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise5:01 am
  • Moonset
    Moonset2:35 pm
  • Moon Phase - Day 25 Waning Crescent

Sun 15

Scattered Thunderstorms PM Thunderstorms/Wind
66°/19°
Rain drop 96%
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Day

66°
Scattered Thunderstorms
Rain drop
96%
SSW 21 mph

Cloudy in the morning, then windy with periods of thunderstorms later in the day. Potential for severe thunderstorms. High 66F. Winds SSW at 20 to 30 mph. Chance of rain 100%.

  • Humidity
    Humidity68%
  • UV index
    UV Index2 of 11
  • Sunrise
    Sunrise7:13 am
  • Sunset
    Sunset7:09 pm

Night

19°
Rain, Snow, Wintery Mix
Snowflake
67%
WNW 23 mph

Rain and snow in the evening. Cloudy and windy late. Low 19F. Winds WNW at 20 to 30 mph. Chance of snow 70%. Winds could occasionally gust over 40 mph.

  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise5:33 am
  • Moonset
    Moonset3:41 pm
  • Moon Phase - Day 26 Waning Crescent

Mon 16

Windy Partly Cloudy/Wind
30°/13°
Rain drop 3%
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Day

30°
Windy
Mixed precipitation
3%
WNW 20 mph

Cloudy and windy in the morning, becoming partly cloudy in the afternoon. High around 30F. Winds WNW at 20 to 30 mph. Winds could occasionally gust over 40 mph.

  • Humidity
    Humidity51%
  • UV index
    UV Index3 of 11
  • Sunrise
    Sunrise7:12 am
  • Sunset
    Sunset7:10 pm

Night

13°
Partly Cloudy Night
NW 15 mph

Partly cloudy skies. Low 13F. Winds NW at 10 to 20 mph.

  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise6:02 am
  • Moonset
    Moonset4:49 pm
  • Moon Phase - Day 27 Waning Crescent

Tue 17

Mostly Cloudy Day Mostly Cloudy
40°/34°
Rain drop 1%
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Day

40°
Mostly Cloudy Day
Mixed precipitation
1%
WSW 7 mph

Partly cloudy skies in the morning will give way to cloudy skies during the afternoon. Cool. High near 40F. Winds WSW at 5 to 10 mph.

  • Humidity
    Humidity37%
  • UV index
    UV Index5 of 11
  • Sunrise
    Sunrise7:10 am
  • Sunset
    Sunset7:11 pm

Night

34°
Cloudy
Mixed precipitation
7%
SSE 12 mph

Cloudy. Low 34F. Winds SSE at 10 to 15 mph.

  • Humidity
    Humidity45%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise6:28 am
  • Moonset
    Moonset5:58 pm
  • Moon Phase - Day 28 Waning Crescent

Wed 18

Partly Cloudy Day Partly Cloudy
68°/38°
Rain drop 0%
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Day

68°
Partly Cloudy Day
SW 13 mph

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

  • Humidity
    Humidity42%
  • UV index
    UV Index5 of 11
  • Sunrise
    Sunrise7:09 am
  • Sunset
    Sunset7:12 pm

Night

38°
Mostly Clear Night
Mixed precipitation
7%
SSW 5 mph

Mainly clear. Low 38F. Winds light and variable.

  • Humidity
    Humidity71%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise6:52 am
  • Moonset
    Moonset7:07 pm
  • Moon Phase - Day 29 New Moon

Thu 19

Mostly Clear Day Mostly Sunny
75°/45°
Rain drop 6%
Add

Day

75°
Mostly Clear Day
Rain drop
6%
WSW 7 mph

Mostly sunny skies. High near 75F. Winds WSW at 5 to 10 mph.

  • Humidity
    Humidity54%
  • UV index
    UV Index5 of 11
  • Sunrise
    Sunrise7:07 am
  • Sunset
    Sunset7:13 pm

Night

45°
Partly Cloudy Night
Rain drop
7%
SSE 5 mph

A few clouds. Low around 45F. Winds light and variable.

  • Humidity
    Humidity66%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise7:16 am
  • Moonset
    Moonset8:18 pm
  • Moon Phase - Day 1 Waxing Crescent

Fri 20

Mostly Clear Day Mostly Sunny
75°/48°
Rain drop 7%
Add

Day

75°
Mostly Clear Day
Rain drop
7%
NW 8 mph

Mostly sunny skies. High near 75F. Winds NW at 5 to 10 mph.

  • Humidity
    Humidity55%
  • UV index
    UV Index5 of 11
  • Sunrise
    Sunrise7:06 am
  • Sunset
    Sunset7:14 pm

Night

48°
Partly Cloudy Night
Rain drop
4%
NW 6 mph

A few clouds from time to time. Low 48F. Winds light and variable.

  • Humidity
    Humidity66%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise7:42 am
  • Moonset
    Moonset9:31 pm
  • Moon Phase - Day 2 Waxing Crescent

Sat 21

Partly Cloudy Day Partly Cloudy
72°/45°
Rain drop 5%
Add

Day

72°
Partly Cloudy Day
Rain drop
5%
WNW 9 mph

Intervals of clouds and sunshine. High 72F. Winds WNW at 5 to 10 mph.

  • Humidity
    Humidity53%
  • UV index
    UV Index6 of 11
  • Sunrise
    Sunrise7:04 am
  • Sunset
    Sunset7:15 pm

Night

45°
Partly Cloudy Night
Rain drop
10%
NE 7 mph

A few clouds. Low around 45F. Winds NE at 5 to 10 mph.

  • Humidity
    Humidity63%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise8:12 am
  • Moonset
    Moonset10:48 pm
  • Moon Phase - Day 3 Waxing Crescent

Sun 22

Mostly Clear Day Mostly Sunny
69°/47°
Rain drop 4%
Add

Day

69°
Mostly Clear Day
Rain drop
4%
ENE 10 mph

Generally sunny despite a few afternoon clouds. High 69F. Winds ENE at 10 to 15 mph.

  • Humidity
    Humidity51%
  • UV index
    UV Index6 of 11
  • Sunrise
    Sunrise7:03 am
  • Sunset
    Sunset7:16 pm

Night

47°
Mostly Clear Night
Rain drop
3%
ESE 8 mph

Clear to partly cloudy. Low 47F. Winds ESE at 5 to 10 mph.

  • Humidity
    Humidity57%
  • 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
76°/51°
Rain drop 4%
Add

Day

76°
Partly Cloudy Day
Rain drop
4%
S 11 mph

Partly cloudy. High 76F. Winds S at 10 to 15 mph.

  • Humidity
    Humidity43%
  • UV index
    UV Index6 of 11
  • Sunrise
    Sunrise7:01 am
  • Sunset
    Sunset7:17 pm

Night

51°
Partly Cloudy Night
Rain drop
4%
W 9 mph

Partly cloudy skies. Low 51F. Winds W 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
72°/44°
Rain drop 2%
Add

Day

72°
Partly Cloudy Day
Rain drop
2%
W 11 mph

Intervals of clouds and sunshine. High 72F. Winds W at 10 to 15 mph.

  • Humidity
    Humidity45%
  • UV index
    UV Index6 of 11
  • Sunrise
    Sunrise6:59 am
  • Sunset
    Sunset7:18 pm

Night

44°
Scattered Showers Night
Rain drop
37%
NE 8 mph

Mostly cloudy skies early with showers developing late. Low 44F. Winds NE at 5 to 10 mph. Chance of rain 40%.

  • Humidity
    Humidity58%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise10:22 am
  • Moonset
    Moonset1:18 am
  • Moon Phase - Day 6 Waxing Crescent

Wed 25

Showers Showers
65°/46°
Rain drop 36%
Add

Day

65°
Showers
Rain drop
36%
E 12 mph

Cloudy with occasional showers. High around 65F. Winds E at 10 to 15 mph. Chance of rain 40%.

  • Humidity
    Humidity53%
  • UV index
    UV Index5 of 11
  • Sunrise
    Sunrise6:58 am
  • Sunset
    Sunset7:19 pm

Night

46°
Showers
Rain drop
56%
ESE 10 mph

Considerable cloudiness with occasional rain showers. Low 46F. Winds ESE at 10 to 15 mph. Chance of rain 60%.

  • Humidity
    Humidity58%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise11:24 am
  • Moonset
    Moonset2:26 am
  • Moon Phase - Day 7 First Quarter

Thu 26

Showers Showers
62°/40°
Rain drop 51%
Add

Day

62°
Showers
Rain drop
51%
N 13 mph

Cloudy with occasional rain showers. High 62F. Winds N at 10 to 15 mph. Chance of rain 50%.

  • Humidity
    Humidity57%
  • UV index
    UV Index5 of 11
  • Sunrise
    Sunrise6:56 am
  • Sunset
    Sunset7:20 pm

Night

40°
Scattered Showers Night
Rain drop
33%
NNE 9 mph

A shower or two possible early with partly cloudy skies later at night. Low near 40F. Winds NNE at 5 to 10 mph. Chance of rain 30%.

  • Humidity
    Humidity64%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise12:35 pm
  • Moonset
    Moonset3:21 am
  • Moon Phase - Day 8 Waxing Gibbous

Fri 27

Mostly Cloudy Day Mostly Cloudy
64°/43°
Rain drop 12%
Add

Day

64°
Mostly Cloudy Day
Rain drop
12%
NW 10 mph

Mainly cloudy. High 64F. N winds shifting to SSW at 10 to 15 mph.

  • Humidity
    Humidity53%
  • UV index
    UV Index5 of 11
  • Sunrise
    Sunrise6:55 am
  • Sunset
    Sunset7:21 pm

Night

43°
Partly Cloudy Night
Rain drop
22%
ESE 7 mph

A few clouds. Low 43F. Winds ESE at 5 to 10 mph.

  • Humidity
    Humidity60%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise1:47 pm
  • Moonset
    Moonset4:07 am
  • Moon Phase - Day 9 Waxing Gibbous

Sat 28

Partly Cloudy Day Partly Cloudy
61°/43°
Rain drop 24%
Add

Day

61°
Partly Cloudy Day
Rain drop
24%
S 12 mph

Partly cloudy skies. High 61F. Winds S at 10 to 15 mph.

  • Humidity
    Humidity58%
  • UV index
    UV Index5 of 11
  • Sunrise
    Sunrise6:53 am
  • Sunset
    Sunset7:22 pm

Night

43°
Showers
Rain drop
32%
S 9 mph

Cloudy with a few showers. Low 43F. Winds S at 5 to 10 mph. Chance of rain 30%.

  • Humidity
    Humidity71%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise2:59 pm
  • Moonset
    Moonset4:43 am
  • Moon Phase - Day 10 Waxing Gibbous
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