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10-Day Weather Forecast for O'Fallon, Illinois 62269 - The Weather Channel | weather.com
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10 Day Weather-

As of 2:19 am CDT

Tonight

Partly Cloudy Night Partly Cloudy
--/36°
Rain drop 1%
Subtract

Night

36°
Partly Cloudy Night
Mixed precipitation
1%
NE 5 mph

Partly cloudy skies. Low 36F. Winds light and variable.

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  • Humidity
    Humidity70%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise4:18 am
  • Moonset
    Moonset1:27 pm
  • Moon Phase - Day 24 Waning Crescent

Sat 14

Mostly Clear Day Mostly Sunny
63°/55°
Rain drop 1%
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Day

63°
Mostly Clear Day
Rain drop
1%
ESE 14 mph

A few clouds early, otherwise mostly sunny. High 63F. Winds ESE at 10 to 20 mph.

  • Humidity
    Humidity46%
  • UV index
    UV Index5 of 11
  • Sunrise
    Sunrise7:12 am
  • Sunset
    Sunset7:05 pm

Night

55°
Partly Cloudy Night
Rain drop
5%
SSE 16 mph

Mostly clear skies in the evening then becoming cloudy overnight. Low around 55F. Winds SSE at 10 to 20 mph.

  • Humidity
    Humidity64%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise4:57 am
  • Moonset
    Moonset2:32 pm
  • Moon Phase - Day 25 Waning Crescent

Sun 15

Scattered Thunderstorms PM Thunderstorms/Wind
66°/21°
Rain drop 94%
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Day

66°
Scattered Thunderstorms
Rain drop
94%
SSW 24 mph

Windy with thunderstorms developing later in the day. Severe thunderstorms expected. High 66F. Winds SSW at 20 to 30 mph. Chance of rain 90%.

  • Humidity
    Humidity70%
  • UV index
    UV Index2 of 11
  • Sunrise
    Sunrise7:10 am
  • Sunset
    Sunset7:06 pm

Night

21°
Scattered Thunderstorms Night
Rain drop
86%
WNW 24 mph

Windy at times...showers and thunderstorms in the evening will give way to cloudy skies overnight. Low 21F. Winds WNW at 20 to 30 mph. Chance of rain 90%. Winds could occasionally gust over 40 mph.

  • Humidity
    Humidity74%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise5:29 am
  • Moonset
    Moonset3:38 pm
  • Moon Phase - Day 26 Waning Crescent

Mon 16

Cloudy Cloudy
29°/14°
Rain drop 8%
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Day

29°
Cloudy
Mixed precipitation
8%
WNW 21 mph

Cloudy. Gusty winds in the morning. High 29F. Winds WNW at 20 to 30 mph. Winds could occasionally gust over 40 mph.

  • Humidity
    Humidity56%
  • UV index
    UV Index2 of 11
  • Sunrise
    Sunrise7:09 am
  • Sunset
    Sunset7:07 pm

Night

14°
Partly Cloudy Night
Snowflake
1%
NW 15 mph

Partly cloudy skies. Low 14F. Winds NW at 10 to 20 mph.

  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise5:58 am
  • Moonset
    Moonset4:46 pm
  • Moon Phase - Day 27 Waning Crescent

Tue 17

Partly Cloudy Day Partly Cloudy
37°/31°
Rain drop 1%
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Day

37°
Partly Cloudy Day
Mixed precipitation
1%
W 7 mph

Partly cloudy. Cool. High 37F. Winds W at 5 to 10 mph.

  • Humidity
    Humidity40%
  • UV index
    UV Index5 of 11
  • Sunrise
    Sunrise7:07 am
  • Sunset
    Sunset7:08 pm

Night

31°
Cloudy
Mixed precipitation
15%
SSE 13 mph

Cloudy skies. Low 31F. Winds SSE at 10 to 20 mph.

  • Humidity
    Humidity54%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise6:24 am
  • Moonset
    Moonset5:54 pm
  • Moon Phase - Day 28 Waning Crescent

Wed 18

Partly Cloudy Day Partly Cloudy
63°/36°
Rain drop 2%
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Day

63°
Partly Cloudy Day
Rain drop
2%
SW 15 mph

Sunshine and clouds mixed. High 63F. Winds SW at 10 to 20 mph.

  • Humidity
    Humidity50%
  • UV index
    UV Index5 of 11
  • Sunrise
    Sunrise7:05 am
  • Sunset
    Sunset7:09 pm

Night

36°
Clear Night
Mixed precipitation
6%
WSW 6 mph

Clear. Low 36F. Winds light and variable.

  • Humidity
    Humidity75%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise6:49 am
  • Moonset
    Moonset7:03 pm
  • Moon Phase - Day 29 New Moon

Thu 19

Mostly Clear Day Mostly Sunny
72°/45°
Rain drop 6%
Add

Day

72°
Mostly Clear Day
Rain drop
6%
WSW 8 mph

Mostly sunny skies. High 72F. Winds WSW at 5 to 10 mph.

  • Humidity
    Humidity55%
  • UV index
    UV Index5 of 11
  • Sunrise
    Sunrise7:04 am
  • Sunset
    Sunset7:10 pm

Night

45°
Partly Cloudy Night
Rain drop
6%
SSW 6 mph

A few clouds. Low near 45F. Winds SSW at 5 to 10 mph.

  • Humidity
    Humidity68%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise7:13 am
  • Moonset
    Moonset8:14 pm
  • Moon Phase - Day 1 Waxing Crescent

Fri 20

Mostly Clear Day Mostly Sunny
73°/49°
Rain drop 6%
Add

Day

73°
Mostly Clear Day
Rain drop
6%
WSW 9 mph

Except for a few afternoon clouds, mainly sunny. High 73F. Winds WSW at 5 to 10 mph.

  • Humidity
    Humidity59%
  • UV index
    UV Index6 of 11
  • Sunrise
    Sunrise7:02 am
  • Sunset
    Sunset7:11 pm

Night

49°
Partly Cloudy Night
Rain drop
5%
WSW 7 mph

Partly cloudy. Low 49F. Winds WSW at 5 to 10 mph.

  • Humidity
    Humidity71%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise7:39 am
  • Moonset
    Moonset9:27 pm
  • Moon Phase - Day 2 Waxing Crescent

Sat 21

Partly Cloudy Day Partly Cloudy
73°/44°
Rain drop 5%
Add

Day

73°
Partly Cloudy Day
Rain drop
5%
NW 11 mph

Intervals of clouds and sunshine. High 73F. Winds NW at 10 to 15 mph.

  • Humidity
    Humidity55%
  • UV index
    UV Index6 of 11
  • Sunrise
    Sunrise7:01 am
  • Sunset
    Sunset7:12 pm

Night

44°
Partly Cloudy Night
Rain drop
2%
N 8 mph

A few clouds. Low 44F. Winds N at 5 to 10 mph.

  • Humidity
    Humidity64%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise8:09 am
  • Moonset
    Moonset10:44 pm
  • Moon Phase - Day 3 Waxing Crescent

Sun 22

Partly Cloudy Day Partly Cloudy
67°/48°
Rain drop 2%
Add

Day

67°
Partly Cloudy Day
Rain drop
2%
NNE 11 mph

Sunshine and clouds mixed. High 67F. Winds NNE at 10 to 15 mph.

  • Humidity
    Humidity51%
  • UV index
    UV Index6 of 11
  • Sunrise
    Sunrise6:59 am
  • Sunset
    Sunset7:13 pm

Night

48°
Partly Cloudy Night
Rain drop
3%
SE 9 mph

Clear to partly cloudy. Low 48F. Winds SE at 5 to 10 mph.

  • Humidity
    Humidity58%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise8:44 am
  • Moonset
    Moonset--
  • Moon Phase - Day 4 Waxing Crescent

Mon 23

Mostly Clear Day Mostly Sunny
77°/54°
Rain drop 2%
Add

Day

77°
Mostly Clear Day
Rain drop
2%
S 13 mph

Mostly sunny skies. High 77F. Winds S at 10 to 15 mph.

  • Humidity
    Humidity45%
  • UV index
    UV Index6 of 11
  • Sunrise
    Sunrise6:58 am
  • Sunset
    Sunset7:14 pm

Night

54°
Partly Cloudy Night
Rain drop
8%
SSW 10 mph

A few clouds from time to time. Low 54F. Winds SSW at 5 to 10 mph.

  • Humidity
    Humidity55%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise9:27 am
  • Moonset
    Moonset12:00 am
  • Moon Phase - Day 5 Waxing Crescent

Tue 24

Partly Cloudy Day Partly Cloudy
71°/46°
Rain drop 24%
Add

Day

71°
Partly Cloudy Day
Rain drop
24%
W 13 mph

Partly cloudy. High 71F. Winds W at 10 to 15 mph.

  • Humidity
    Humidity52%
  • UV index
    UV Index6 of 11
  • Sunrise
    Sunrise6:56 am
  • Sunset
    Sunset7:15 pm

Night

46°
Showers
Rain drop
42%
NNE 10 mph

Considerable cloudiness with occasional rain showers. Low 46F. Winds NNE at 5 to 10 mph. Chance of rain 40%.

  • Humidity
    Humidity66%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise10:20 am
  • Moonset
    Moonset1:14 am
  • Moon Phase - Day 6 Waxing Crescent

Wed 25

Showers Showers
63°/45°
Rain drop 38%
Add

Day

63°
Showers
Rain drop
38%
NNE 12 mph

Rain showers in the morning becoming more intermittent in the afternoon. High 63F. Winds NNE at 10 to 15 mph. Chance of rain 40%.

  • Humidity
    Humidity62%
  • UV index
    UV Index5 of 11
  • Sunrise
    Sunrise6:55 am
  • Sunset
    Sunset7:16 pm

Night

45°
Showers
Rain drop
51%
E 10 mph

Overcast with rain showers at times. Low around 45F. Winds E at 5 to 10 mph. Chance of rain 50%.

  • Humidity
    Humidity68%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise11:22 am
  • Moonset
    Moonset2:21 am
  • Moon Phase - Day 7 First Quarter

Thu 26

Foggy Foggy
63°/41°
Rain drop 24%
Add

Day

63°
Foggy
Rain drop
24%
N 14 mph

Low clouds and fog. High 63F. NE winds shifting to NW at 10 to 20 mph.

  • Humidity
    Humidity60%
  • UV index
    UV Index4 of 11
  • Sunrise
    Sunrise6:53 am
  • Sunset
    Sunset7:17 pm

Night

41°
Scattered Showers Night
Rain drop
46%
NNW 11 mph

Rain showers early with mostly cloudy conditions late. Low 41F. Winds NNW at 10 to 15 mph. Chance of rain 50%.

  • Humidity
    Humidity69%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise12:32 pm
  • Moonset
    Moonset3:17 am
  • Moon Phase - Day 8 Waxing Gibbous

Fri 27

Mostly Cloudy Day Mostly Cloudy
63°/42°
Rain drop 11%
Add

Day

63°
Mostly Cloudy Day
Rain drop
11%
NW 13 mph

Considerable cloudiness. High 63F. Winds NW at 10 to 20 mph.

  • Humidity
    Humidity56%
  • UV index
    UV Index5 of 11
  • Sunrise
    Sunrise6:52 am
  • Sunset
    Sunset7:18 pm

Night

42°
Partly Cloudy Night
Rain drop
15%
W 9 mph

A few clouds. Low 42F. Winds W at 5 to 10 mph.

  • Humidity
    Humidity63%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise1:44 pm
  • Moonset
    Moonset4:03 am
  • Moon Phase - Day 9 Waxing Gibbous
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