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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 5:07 pm CDT

Tonight

Partly Cloudy Night Partly Cloudy
--/36°
Rain drop 2%
Subtract

Night

36°
Partly Cloudy Night
Mixed precipitation
2%
N 13 mph

Partly cloudy. Low 36F. Winds N at 10 to 15 mph.

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  • Humidity
    Humidity51%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise4:18 am
  • Moonset
    Moonset1:27 pm
  • Moon Phase - Day 24 Waning Crescent

Sat 14

Partly Cloudy Day AM Clouds/PM Sun
63°/54°
Rain drop 2%
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Day

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

Cloudy skies early will become partly cloudy later in the day. 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

54°
Partly Cloudy Night
Rain drop
5%
SSE 16 mph

Partly cloudy skies. Low 54F. 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 89%
Add

Day

66°
Scattered Thunderstorms
Rain drop
89%
SSW 24 mph

Windy with periods of thunderstorms 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°
Rain, Snow, Wintery Mix
Snowflake
85%
WNW 22 mph

Windy with rain and snow in the evening. Then mainly snow showers late. Thunder possible. Low 21F. Winds WNW at 20 to 30 mph. Chance of snow 90%.

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

Mon 16

Windy Cloudy/Wind
28°/13°
Rain drop 18%
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Day

28°
Windy
Mixed precipitation
18%
WNW 22 mph

Cloudy and windy. High 28F. Winds WNW at 20 to 30 mph. Winds could occasionally gust over 40 mph.

  • Humidity
    Humidity59%
  • UV index
    UV Index2 of 11
  • Sunrise
    Sunrise7:09 am
  • Sunset
    Sunset7:07 pm

Night

13°
Partly Cloudy Night
Snowflake
1%
NW 16 mph

Clear to partly cloudy. Low 13F. 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

Mostly Clear Day Mostly Sunny
36°/31°
Rain drop 1%
Add

Day

36°
Mostly Clear Day
Mixed precipitation
1%
W 8 mph

Except for a few afternoon clouds, mainly sunny. Cool. High 36F. Winds W at 5 to 10 mph.

  • Humidity
    Humidity41%
  • UV index
    UV Index5 of 11
  • Sunrise
    Sunrise7:07 am
  • Sunset
    Sunset7:08 pm

Night

31°
Cloudy
Mixed precipitation
17%
SSE 12 mph

Cloudy skies. Low 31F. Winds SSE at 10 to 15 mph.

  • Humidity
    Humidity53%
  • 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 AM Clouds/PM Sun
63°/37°
Rain drop 7%
Add

Day

63°
Partly Cloudy Day
Rain drop
7%
SSW 15 mph

Cloudy skies early, followed by partial clearing. High 63F. Winds SSW at 10 to 20 mph.

  • Humidity
    Humidity51%
  • UV index
    UV Index5 of 11
  • Sunrise
    Sunrise7:05 am
  • Sunset
    Sunset7:09 pm

Night

37°
Clear Night
Mixed precipitation
7%
SW 6 mph

Clear skies. Low 37F. Winds SW at 5 to 10 mph.

  • 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°/47°
Rain drop 7%
Add

Day

72°
Mostly Clear Day
Rain drop
7%
SW 9 mph

Sunshine and some clouds. High 72F. Winds SW at 5 to 10 mph.

  • Humidity
    Humidity57%
  • UV index
    UV Index5 of 11
  • Sunrise
    Sunrise7:04 am
  • Sunset
    Sunset7:10 pm

Night

47°
Partly Cloudy Night
Rain drop
8%
WSW 7 mph

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

  • Humidity
    Humidity69%
  • 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
69°/46°
Rain drop 7%
Add

Day

69°
Partly Cloudy Day
Rain drop
7%
NW 9 mph

Sunshine and clouds mixed. High 69F. Winds NW at 5 to 10 mph.

  • Humidity
    Humidity61%
  • UV index
    UV Index6 of 11
  • Sunrise
    Sunrise7:02 am
  • Sunset
    Sunset7:11 pm

Night

46°
Partly Cloudy Night
Rain drop
5%
SW 6 mph

Partly cloudy. Low 46F. Winds light and variable.

  • Humidity
    Humidity69%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise7:39 am
  • Moonset
    Moonset9:27 pm
  • Moon Phase - Day 2 Waxing Crescent

Sat 21

Mostly Clear Day Mostly Sunny
73°/42°
Rain drop 4%
Add

Day

73°
Mostly Clear Day
Rain drop
4%
WNW 11 mph

Sunny along with a few clouds. High 73F. Winds WNW at 10 to 15 mph.

  • Humidity
    Humidity54%
  • UV index
    UV Index6 of 11
  • Sunrise
    Sunrise7:01 am
  • Sunset
    Sunset7:12 pm

Night

42°
Partly Cloudy Night
Rain drop
4%
NNE 9 mph

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

  • Humidity
    Humidity62%
  • 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
68°/48°
Rain drop 4%
Add

Day

68°
Partly Cloudy Day
Rain drop
4%
NNE 9 mph

Intervals of clouds and sunshine. High 68F. Winds NNE at 5 to 10 mph.

  • Humidity
    Humidity50%
  • 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

Partly cloudy skies. 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

Partly Cloudy Day Partly Cloudy
76°/49°
Rain drop 4%
Add

Day

76°
Partly Cloudy Day
Rain drop
4%
SSW 12 mph

Intervals of clouds and sunshine. High 76F. Winds SSW at 10 to 15 mph.

  • Humidity
    Humidity46%
  • UV index
    UV Index6 of 11
  • Sunrise
    Sunrise6:58 am
  • Sunset
    Sunset7:14 pm

Night

49°
Partly Cloudy Night
Rain drop
7%
SSE 11 mph

Partly cloudy. Low 49F. Winds SSE at 10 to 15 mph.

  • Humidity
    Humidity56%
  • 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
70°/46°
Rain drop 10%
Add

Day

70°
Partly Cloudy Day
Rain drop
10%
W 13 mph

Partly cloudy. High near 70F. NNW winds shifting to SSW at 10 to 15 mph.

  • Humidity
    Humidity52%
  • UV index
    UV Index5 of 11
  • Sunrise
    Sunrise6:56 am
  • Sunset
    Sunset7:15 pm

Night

46°
Partly Cloudy Night
Rain drop
23%
SE 10 mph

A few clouds from time to time. Low 46F. Winds SE at 10 to 15 mph.

  • Humidity
    Humidity62%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise10:20 am
  • Moonset
    Moonset1:14 am
  • Moon Phase - Day 6 Waxing Crescent

Wed 25

Partly Cloudy Day Partly Cloudy
65°/46°
Rain drop 24%
Add

Day

65°
Partly Cloudy Day
Rain drop
24%
SSE 14 mph

Partly to mostly cloudy. High near 65F. Winds SSE at 10 to 20 mph.

  • Humidity
    Humidity56%
  • UV index
    UV Index6 of 11
  • Sunrise
    Sunrise6:55 am
  • Sunset
    Sunset7:16 pm

Night

46°
Scattered Showers Night
Rain drop
30%
SSE 10 mph

Partly cloudy skies early followed by mostly cloudy skies and a few showers later at night. Low 46F. Winds SSE at 10 to 15 mph. Chance of rain 30%.

  • Humidity
    Humidity66%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise11:22 am
  • Moonset
    Moonset2:21 am
  • Moon Phase - Day 7 First Quarter

Thu 26

Partly Cloudy Day Partly Cloudy
66°/49°
Rain drop 24%
Add

Day

66°
Partly Cloudy Day
Rain drop
24%
SSW 15 mph

Some sun in the morning with increasing clouds during the afternoon. High 66F. Winds SSW at 10 to 20 mph.

  • Humidity
    Humidity60%
  • UV index
    UV Index5 of 11
  • Sunrise
    Sunrise6:53 am
  • Sunset
    Sunset7:17 pm

Night

49°
Scattered Showers Night
Rain drop
45%
S 11 mph

Mostly cloudy in the evening then periods of showers after midnight. Low 49F. Winds S 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

Scattered Showers Day AM Showers
63°/44°
Rain drop 52%
Add

Day

63°
Scattered Showers Day
Rain drop
52%
W 14 mph

Showers in the morning, then partly cloudy in the afternoon. High 63F. Winds W at 10 to 20 mph. Chance of rain 50%.

  • Humidity
    Humidity62%
  • UV index
    UV Index6 of 11
  • Sunrise
    Sunrise6:52 am
  • Sunset
    Sunset7:18 pm

Night

44°
Scattered Showers Night
Rain drop
31%
WNW 11 mph

Partly cloudy during the evening. A few showers developing later during the night. Low 44F. Winds WNW at 10 to 15 mph. Chance of rain 30%.

  • 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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