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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 3:52 am CDT

Today

Snow Showers AM Snow Showers
64°/45°
Rain drop 50%
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Day

64°
Snow Showers
Snowflake
50%
SSW 12 mph

Snow showers this morning. Becoming sunny later. High 64F. Winds SSW at 10 to 15 mph. Chance of snow 50%.

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Southwest Will Bake With Highs In 90s, 100s

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

Night

45°
Mostly Cloudy Night
Rain drop
6%
S 5 mph

Partly cloudy early followed by cloudy skies overnight. Low around 45F. Winds light and variable.

  • Humidity
    Humidity67%
  • 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 AM Clouds/PM Sun
74°/44°
Rain drop 15%
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Day

74°
Partly Cloudy Day
Rain drop
15%
SW 7 mph

Cloudy early with partial sunshine expected late. Slight chance of a rain shower. High 74F. Winds SW at 5 to 10 mph.

  • Humidity
    Humidity52%
  • UV index
    UV Index5 of 11
  • Sunrise
    Sunrise7:04 am
  • Sunset
    Sunset7:10 pm

Night

44°
Mostly Clear Night
Rain drop
11%
NNW 5 mph

A few clouds overnight. Low 44F. 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

Mostly Clear Day Mostly Sunny
81°/48°
Rain drop 8%
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Day

81°
Mostly Clear Day
Rain drop
8%
W 7 mph

A few passing clouds, otherwise generally sunny. High 81F. Winds W at 5 to 10 mph.

  • Humidity
    Humidity55%
  • UV index
    UV Index6 of 11
  • Sunrise
    Sunrise7:02 am
  • Sunset
    Sunset7:11 pm

Night

48°
Partly Cloudy Night
Rain drop
7%
NW 4 mph

A few clouds. Low 48F. Winds light and variable.

  • Humidity
    Humidity68%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise7:39 am
  • Moonset
    Moonset9:27 pm
  • Moon Phase - Day 2 Waxing Crescent

Sat 21

Sunny Sunny
83°/58°
Rain drop 7%
Add

Day

83°
Sunny
Rain drop
7%
WSW 9 mph

Mainly sunny. High 83F. Winds WSW at 5 to 10 mph.

  • Humidity
    Humidity52%
  • UV index
    UV Index6 of 11
  • Sunrise
    Sunrise7:01 am
  • Sunset
    Sunset7:12 pm

Night

58°
Clear Night
Rain drop
4%
SSW 8 mph

A mostly clear sky. Low 58F. Winds SSW at 5 to 10 mph.

  • Humidity
    Humidity61%
  • 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
80°/39°
Rain drop 4%
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Day

80°
Mostly Clear Day
Rain drop
4%
WSW 14 mph

Generally sunny despite a few afternoon clouds. High near 80F. Winds WSW at 10 to 20 mph.

  • Humidity
    Humidity49%
  • UV index
    UV Index6 of 11
  • Sunrise
    Sunrise6:59 am
  • Sunset
    Sunset7:13 pm

Night

39°
Partly Cloudy Night
Mixed precipitation
19%
N 15 mph

Partly cloudy. Low 39F. Winds N at 10 to 20 mph.

  • Humidity
    Humidity62%
  • 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
52°/36°
Rain drop 1%
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Day

52°
Partly Cloudy Day
Rain drop
1%
NNE 13 mph

Mostly cloudy skies early will become partly cloudy later in the day. High 52F. Winds NNE at 10 to 15 mph.

  • Humidity
    Humidity53%
  • UV index
    UV Index5 of 11
  • Sunrise
    Sunrise6:58 am
  • Sunset
    Sunset7:14 pm

Night

36°
Partly Cloudy Night
Mixed precipitation
12%
NNE 9 mph

A few clouds from time to time. Low 36F. Winds NNE at 5 to 10 mph.

  • Humidity
    Humidity61%
  • 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
59°/40°
Rain drop 8%
Add

Day

59°
Mostly Cloudy Day
Rain drop
8%
N 10 mph

Mostly cloudy skies. High 59F. Winds N at 5 to 10 mph.

  • Humidity
    Humidity50%
  • UV index
    UV Index5 of 11
  • Sunrise
    Sunrise6:56 am
  • Sunset
    Sunset7:15 pm

Night

40°
Partly Cloudy Night
Rain drop
11%
ESE 8 mph

Partly cloudy skies. Low near 40F. Winds ESE at 5 to 10 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
68°/53°
Rain drop 5%
Add

Day

68°
Partly Cloudy Day
Rain drop
5%
S 13 mph

Intervals of clouds and sunshine in the morning with more clouds for later in the day. High 68F. Winds S at 10 to 15 mph.

  • Humidity
    Humidity53%
  • UV index
    UV Index5 of 11
  • Sunrise
    Sunrise6:55 am
  • Sunset
    Sunset7:16 pm

Night

53°
Partly Cloudy Night
Rain drop
18%
S 12 mph

A few clouds from time to time. Low 53F. Winds S at 10 to 15 mph.

  • Humidity
    Humidity63%
  • 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
72°/40°
Rain drop 24%
Add

Day

72°
Partly Cloudy Day
Rain drop
24%
SSW 16 mph

Sunshine and clouds mixed. High 72F. Winds SSW at 10 to 20 mph.

  • Humidity
    Humidity55%
  • UV index
    UV Index6 of 11
  • Sunrise
    Sunrise6:53 am
  • Sunset
    Sunset7:17 pm

Night

40°
Scattered Showers Night
Rain drop
43%
WNW 12 mph

Showers in the evening, then partly cloudy overnight. Low around 40F. Winds WNW at 10 to 15 mph. Chance of rain 40%.

  • Humidity
    Humidity66%
  • 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
56°/31°
Rain drop 20%
Add

Day

56°
Partly Cloudy Day
Rain drop
20%
NW 15 mph

Partly cloudy skies in the morning will give way to cloudy skies during the afternoon. High 56F. Winds NW at 10 to 20 mph.

  • Humidity
    Humidity54%
  • UV index
    UV Index6 of 11
  • Sunrise
    Sunrise6:52 am
  • Sunset
    Sunset7:18 pm

Night

31°
Partly Cloudy Night
Mixed precipitation
23%
N 11 mph

Partly cloudy skies. Low 31F. Winds N at 10 to 15 mph.

  • Humidity
    Humidity68%
  • 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
54°/36°
Rain drop 24%
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Day

54°
Partly Cloudy Day
Rain drop
24%
WNW 12 mph

Partly cloudy. High 54F. Winds WNW at 10 to 15 mph.

  • Humidity
    Humidity57%
  • UV index
    UV Index6 of 11
  • Sunrise
    Sunrise6:50 am
  • Sunset
    Sunset7:19 pm

Night

36°
Partly Cloudy Night
Mixed precipitation
20%
SSW 9 mph

Considerable clouds early. Some decrease in clouds late. Low 36F. Winds SSW at 5 to 10 mph.

  • Humidity
    Humidity68%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise2:56 pm
  • Moonset
    Moonset4:39 am
  • Moon Phase - Day 10 Waxing Gibbous

Sun 29

Partly Cloudy Day Partly Cloudy
59°/45°
Rain drop 21%
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Day

59°
Partly Cloudy Day
Rain drop
21%
SW 12 mph

Sunshine and clouds mixed. High 59F. Winds SW at 10 to 15 mph.

  • Humidity
    Humidity59%
  • UV index
    UV Index6 of 11
  • Sunrise
    Sunrise6:49 am
  • Sunset
    Sunset7:20 pm

Night

45°
Scattered Showers Night
Rain drop
43%
S 9 mph

Partly cloudy skies early will give way to occasional showers later during the night. Low near 45F. Winds S at 5 to 10 mph. Chance of rain 40%.

  • Humidity
    Humidity68%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise4:05 pm
  • Moonset
    Moonset5:09 am
  • Moon Phase - Day 11 Waxing Gibbous

Mon 30

Scattered Showers Day AM Showers
67°/50°
Rain drop 47%
Add

Day

67°
Scattered Showers Day
Rain drop
47%
SSW 14 mph

Rain showers early with some sunshine later in the day. High 67F. Winds SSW at 10 to 20 mph. Chance of rain 50%.

  • Humidity
    Humidity61%
  • UV index
    UV Index6 of 11
  • Sunrise
    Sunrise6:47 am
  • Sunset
    Sunset7:21 pm

Night

50°
Showers
Rain drop
55%
S 10 mph

Overcast with rain showers at times. Low around 50F. Winds S at 10 to 15 mph. Chance of rain 60%.

  • Humidity
    Humidity71%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise5:11 pm
  • Moonset
    Moonset5:34 am
  • Moon Phase - Day 12 Waxing Gibbous

Tue 31

Scattered Showers Day AM Showers
70°/52°
Rain drop 47%
Add

Day

70°
Scattered Showers Day
Rain drop
47%
SSW 15 mph

Rain showers early with mostly cloudy conditions later in the day. High near 70F. Winds SSW at 10 to 20 mph. Chance of rain 50%.

  • Humidity
    Humidity63%
  • UV index
    UV Index5 of 11
  • Sunrise
    Sunrise6:46 am
  • Sunset
    Sunset7:22 pm

Night

52°
Showers
Rain drop
46%
SSW 12 mph

Overcast with rain showers at times. Low 52F. Winds SSW at 10 to 15 mph. Chance of rain 50%.

  • Humidity
    Humidity72%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise6:16 pm
  • Moonset
    Moonset5:58 am
  • Moon Phase - Day 13 Waxing Gibbous

Wed 01

Scattered Showers Day AM Showers
71°/51°
Rain drop 32%
Add

Day

71°
Scattered Showers Day
Rain drop
32%
SSW 16 mph

A few showers in the morning, then clouds lingering in the afternoon. High 71F. Winds SSW at 10 to 20 mph. Chance of rain 30%.

  • Humidity
    Humidity64%
  • UV index
    UV Index5 of 11
  • Sunrise
    Sunrise6:44 am
  • Sunset
    Sunset7:22 pm

Night

51°
Scattered Thunderstorms Night
Rain drop
49%
SSW 11 mph

Showers early then scattered thunderstorms developing late. Low 51F. Winds SSW at 10 to 15 mph. Chance of rain 50%.

  • Humidity
    Humidity75%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise7:19 pm
  • Moonset
    Moonset6:20 am
  • Moon Phase - Day 14 Full Moon
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