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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 5:17 pm CDT
alertLevel3

Wind Advisory

Tonight

Mostly Cloudy Night Mostly Cloudy
--/55°
Rain drop 5%
Subtract

Night

55°
Mostly Cloudy Night
Rain drop
5%
SSE 17 mph

Partly cloudy early followed by cloudy skies overnight. Low around 55F. Winds SSE at 10 to 20 mph.

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  • Humidity
    Humidity61%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise4:57 am
  • Moonset
    Moonset2:32 pm
  • Moon Phase - Day 25 Waning Crescent

Sun 15

Strong Storms alertLevel3
Strong Storms/Wind
65°/22°
Rain drop 98%
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Day

65°
Strong Storms alertLevel3
Rain drop
98%
SSW 26 mph

Windy with strong thunderstorms likely in the afternoon. Damaging winds with some storms. High near 65F. Winds SSW at 25 to 35 mph. Chance of rain 100%.

  • Humidity
    Humidity72%
  • UV index
    UV Index2 of 11
  • Sunrise
    Sunrise7:10 am
  • Sunset
    Sunset7:06 pm

Night

22°
Rain
Rain drop
60%
WNW 24 mph

Cloudy and windy. Periods of rain early. Low 22F. Winds WNW at 20 to 30 mph. Chance of rain 60%. Winds could occasionally gust over 40 mph.

  • Humidity
    Humidity75%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise5:29 am
  • Moonset
    Moonset3:38 pm
  • Moon Phase - Day 26 Waning Crescent

Mon 16

Windy Partly Cloudy/Wind
30°/15°
Rain drop 15%
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Day

30°
Windy
Mixed precipitation
15%
WNW 22 mph

Decreasing cloudiness and windy. A few flurries or snow showers possible. High around 30F. Winds WNW at 20 to 30 mph.

  • Humidity
    Humidity58%
  • UV index
    UV Index3 of 11
  • Sunrise
    Sunrise7:09 am
  • Sunset
    Sunset7:07 pm

Night

15°
Clear Night
NW 15 mph

A mostly clear sky. Low around 15F. 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
38°/32°
Rain drop 0%
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Day

38°
Partly Cloudy Day
W 7 mph

Partly cloudy skies. Cold. High 38F. Winds W at 5 to 10 mph.

  • Humidity
    Humidity39%
  • UV index
    UV Index5 of 11
  • Sunrise
    Sunrise7:07 am
  • Sunset
    Sunset7:08 pm

Night

32°
Cloudy
Mixed precipitation
16%
SSE 13 mph

Cloudy. Low 32F. Winds SSE at 10 to 15 mph.

  • Humidity
    Humidity51%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise6:24 am
  • Moonset
    Moonset5:54 pm
  • Moon Phase - Day 28 Waning Crescent

Wed 18

Mostly Clear Day Mostly Sunny
64°/40°
Rain drop 4%
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Day

64°
Mostly Clear Day
Rain drop
4%
SW 14 mph

A few passing clouds, otherwise generally sunny. High 64F. Winds SW at 10 to 20 mph.

  • Humidity
    Humidity47%
  • UV index
    UV Index5 of 11
  • Sunrise
    Sunrise7:05 am
  • Sunset
    Sunset7:09 pm

Night

40°
Partly Cloudy Night
Rain drop
5%
SSW 7 mph

Partly cloudy. Low around 40F. Winds SSW at 5 to 10 mph.

  • Humidity
    Humidity72%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise6:49 am
  • Moonset
    Moonset7:03 pm
  • Moon Phase - Day 29 New Moon

Thu 19

Partly Cloudy Day Partly Cloudy
72°/42°
Rain drop 5%
Add

Day

72°
Partly Cloudy Day
Rain drop
5%
W 7 mph

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

  • Humidity
    Humidity56%
  • UV index
    UV Index5 of 11
  • Sunrise
    Sunrise7:04 am
  • Sunset
    Sunset7:10 pm

Night

42°
Partly Cloudy Night
Rain drop
8%
NNE 6 mph

A few clouds. Low 42F. Winds light and variable.

  • Humidity
    Humidity77%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise7:13 am
  • Moonset
    Moonset8:14 pm
  • Moon Phase - Day 1 Waxing Crescent

Fri 20

Partly Cloudy Day Partly Cloudy
74°/48°
Rain drop 8%
Add

Day

74°
Partly Cloudy Day
Rain drop
8%
W 9 mph

Partly cloudy. High 74F. Winds W at 5 to 10 mph.

  • Humidity
    Humidity60%
  • UV index
    UV Index5 of 11
  • Sunrise
    Sunrise7:02 am
  • Sunset
    Sunset7:11 pm

Night

48°
Partly Cloudy Night
Rain drop
2%
WNW 7 mph

A few clouds. Low 48F. Winds WNW at 5 to 10 mph.

  • Humidity
    Humidity62%
  • 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
64°/40°
Rain drop 2%
Add

Day

64°
Partly Cloudy Day
Rain drop
2%
NNW 13 mph

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

  • Humidity
    Humidity48%
  • UV index
    UV Index6 of 11
  • Sunrise
    Sunrise7:01 am
  • Sunset
    Sunset7:12 pm

Night

40°
Mostly Clear Night
Mixed precipitation
5%
NNE 8 mph

Mostly clear skies. Low around 40F. Winds NNE at 5 to 10 mph.

  • Humidity
    Humidity59%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise8:09 am
  • Moonset
    Moonset10:44 pm
  • Moon Phase - Day 3 Waxing Crescent

Sun 22

Mostly Clear Day Mostly Sunny
60°/40°
Rain drop 2%
Add

Day

60°
Mostly Clear Day
Rain drop
2%
ESE 11 mph

Except for a few afternoon clouds, mainly sunny. High around 60F. ENE winds shifting to SSE at 10 to 15 mph.

  • Humidity
    Humidity48%
  • UV index
    UV Index6 of 11
  • Sunrise
    Sunrise6:59 am
  • Sunset
    Sunset7:13 pm

Night

40°
Partly Cloudy Night
Rain drop
5%
SE 8 mph

A few clouds from time to time. Low near 40F. Winds SE at 5 to 10 mph.

  • Humidity
    Humidity56%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise8:44 am
  • Moonset
    Moonset--
  • Moon Phase - Day 4 Waxing Crescent

Mon 23

Partly Cloudy Day Partly Cloudy
71°/47°
Rain drop 2%
Add

Day

71°
Partly Cloudy Day
Rain drop
2%
S 12 mph

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

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

Night

47°
Partly Cloudy Night
Rain drop
15%
NE 9 mph

Partly cloudy skies. Low 47F. Winds NE at 5 to 10 mph.

  • Humidity
    Humidity57%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise9:27 am
  • Moonset
    Moonset12:00 am
  • Moon Phase - Day 5 Waxing Crescent

Tue 24

Mostly Cloudy Day Mostly Cloudy
65°/42°
Rain drop 16%
Add

Day

65°
Mostly Cloudy Day
Rain drop
16%
NE 13 mph

Mostly cloudy. High around 65F. Winds NE at 10 to 15 mph.

  • Humidity
    Humidity55%
  • UV index
    UV Index5 of 11
  • Sunrise
    Sunrise6:56 am
  • Sunset
    Sunset7:15 pm

Night

42°
Scattered Showers Night
Rain drop
38%
ENE 10 mph

Mostly cloudy skies early with showers developing late. Low 42F. Winds ENE at 10 to 15 mph. Chance of rain 40%.

  • Humidity
    Humidity64%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise10:20 am
  • Moonset
    Moonset1:14 am
  • Moon Phase - Day 6 Waxing Crescent

Wed 25

Showers Showers
58°/42°
Rain drop 38%
Add

Day

58°
Showers
Rain drop
38%
NE 13 mph

Rain showers in the morning becoming more intermittent in the afternoon. High 58F. E winds shifting to NW at 10 to 15 mph. Chance of rain 40%.

  • Humidity
    Humidity56%
  • UV index
    UV Index5 of 11
  • Sunrise
    Sunrise6:55 am
  • Sunset
    Sunset7:16 pm

Night

42°
Scattered Showers Night
Rain drop
45%
NNE 10 mph

Mostly cloudy in the evening then periods of showers after midnight. Low 42F. Winds NNE at 10 to 15 mph. Chance of rain 50%.

  • Humidity
    Humidity62%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise11:22 am
  • Moonset
    Moonset2:21 am
  • Moon Phase - Day 7 First Quarter

Thu 26

Scattered Showers Day AM Showers
60°/40°
Rain drop 37%
Add

Day

60°
Scattered Showers Day
Rain drop
37%
NW 13 mph

Showers in the morning, then partly cloudy in the afternoon. High around 60F. Winds NW at 10 to 20 mph. Chance of rain 40%.

  • Humidity
    Humidity61%
  • UV index
    UV Index5 of 11
  • Sunrise
    Sunrise6:53 am
  • Sunset
    Sunset7:17 pm

Night

40°
Partly Cloudy Night
Mixed precipitation
24%
NW 10 mph

A few clouds from time to time. Low around 40F. Winds NW at 5 to 10 mph.

  • Humidity
    Humidity65%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise12:32 pm
  • Moonset
    Moonset3:17 am
  • Moon Phase - Day 8 Waxing Gibbous

Fri 27

Partly Cloudy Day Partly Cloudy
62°/43°
Rain drop 16%
Add

Day

62°
Partly Cloudy Day
Rain drop
16%
WNW 13 mph

Sunshine and clouds mixed. High 62F. Winds WNW at 10 to 20 mph.

  • Humidity
    Humidity53%
  • UV index
    UV Index6 of 11
  • Sunrise
    Sunrise6:52 am
  • Sunset
    Sunset7:18 pm

Night

43°
Partly Cloudy Night
Rain drop
20%
S 9 mph

A few clouds from time to time. Low 43F. Winds S at 5 to 10 mph.

  • Humidity
    Humidity60%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise1:44 pm
  • Moonset
    Moonset4:03 am
  • Moon Phase - Day 9 Waxing Gibbous

Sat 28

Partly Cloudy Day Partly Cloudy
62°/45°
Rain drop 18%
Add

Day

62°
Partly Cloudy Day
Rain drop
18%
S 12 mph

Intervals of clouds and sunshine. High 62F. Winds S at 10 to 15 mph.

  • Humidity
    Humidity54%
  • UV index
    UV Index6 of 11
  • Sunrise
    Sunrise6:50 am
  • Sunset
    Sunset7:19 pm

Night

45°
Scattered Showers Night
Rain drop
33%
SSE 9 mph

Partly cloudy during the evening. A few showers developing later during the night. Low around 45F. Winds SSE at 5 to 10 mph. Chance of rain 30%.

  • Humidity
    Humidity65%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise2:56 pm
  • Moonset
    Moonset4:39 am
  • Moon Phase - Day 10 Waxing Gibbous
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