Weather Forecast and Conditions for O'Fallon, Missouri 63366 - The Weather Channel | Weather.com
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49° Sunny
Sunny
Day 61° • Night 40°
Feels Like44°
Sunrise

6:41 am

Sunset

7:30 pm

Temperature
High / Low
61°/40°
Wind
13 mph
Humidity
Humidity
49%
Dew point
Dew Point
30°
Pressure
Pressure
30.33 in
UV index
UV Index
3 of 11
Visibility
Visibility
10 mi
Moon Phase - Day 18
Moon Phase
Waning Gibbous

Hourly Weather-

Now

Sunny Sunny
51°
Rain drop 0%
NW 13 mph
Subtract

Sunny

  • Temperature feels like
    Feels Like47°
  • WindNW 13 mph
  • Humidity
    Humidity45%
  • UV index
    UV Index4 of 11
  • Cloud
    Cloud Cover1%
  • Rain drop
    Rain Amount0 in

12 pm

Sunny Sunny
54°
Rain drop 0%
NW 12 mph
Add

Sunny

  • Temperature feels like
    Feels Like50°
  • WindNW 12 mph
  • Humidity
    Humidity41%
  • UV index
    UV Index6 of 11
  • Cloud
    Cloud Cover1%
  • Rain drop
    Rain Amount0 in

1 pm

Sunny Sunny
56°
Rain drop 0%
NW 13 mph
Add

Sunny

  • Temperature feels like
    Feels Like53°
  • WindNW 13 mph
  • Humidity
    Humidity37%
  • UV index
    UV Index6 of 11
  • Cloud
    Cloud Cover2%
  • Rain drop
    Rain Amount0 in

2 pm

Sunny Sunny
57°
Rain drop 0%
NW 12 mph
Add

Sunny

  • Temperature feels like
    Feels Like55°
  • WindNW 12 mph
  • Humidity
    Humidity38%
  • UV index
    UV Index6 of 11
  • Cloud
    Cloud Cover2%
  • Rain drop
    Rain Amount0 in
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10 Day Weather-

Today

Sunny Sunny
61°/40°
Rain drop 0%
Subtract

Day

61°
Sunny
NW 13 mph

Plentiful sunshine. High 61F. Winds NW at 10 to 20 mph.

  • Humidity
    Humidity40%
  • UV index
    UV Index6 of 11
  • Sunrise
    Sunrise6:41 am
  • Sunset
    Sunset7:30 pm

Night

40°
Clear Night
Mixed precipitation
4%
W 7 mph

Clear skies. Low around 40F. Winds W at 5 to 10 mph.

  • Humidity
    Humidity64%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise11:34 pm
  • Moonset
    Moonset8:08 am
  • Moon Phase - Day 18 Waning Gibbous

Mon 06

Mostly Clear Day Mostly Sunny
65°/37°
Rain drop 5%
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Day

65°
Mostly Clear Day
Rain drop
5%
NNW 10 mph

Sunshine. High around 65F. Winds NNW at 5 to 10 mph.

  • Humidity
    Humidity47%
  • UV index
    UV Index7 of 11
  • Sunrise
    Sunrise6:39 am
  • Sunset
    Sunset7:31 pm

Night

37°
Mostly Cloudy Night
Mixed precipitation
8%
NNE 9 mph

Partly cloudy skies in the evening, then becoming cloudy overnight. A shower of rain or wet snow possible. Low 37F. Winds NNE at 5 to 10 mph.

  • Humidity
    Humidity52%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise--
  • Moonset
    Moonset8:45 am
  • Moon Phase - Day 19 Waning Gibbous

Tue 07

Mostly Cloudy Day Mostly Cloudy
56°/39°
Rain drop 6%
Add

Day

56°
Mostly Cloudy Day
Rain drop
6%
E 9 mph

Mostly cloudy. High 56F. Winds E at 5 to 10 mph.

  • Humidity
    Humidity48%
  • UV index
    UV Index4 of 11
  • Sunrise
    Sunrise6:38 am
  • Sunset
    Sunset7:32 pm

Night

39°
Mostly Cloudy Night
Mixed precipitation
3%
ESE 8 mph

Partly cloudy during the evening followed by cloudy skies overnight. Low 39F. Winds ESE at 5 to 10 mph.

  • Humidity
    Humidity55%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise12:34 am
  • Moonset
    Moonset9:28 am
  • Moon Phase - Day 20 Waning Gibbous

Wed 08

Partly Cloudy Day Partly Cloudy
77°/55°
Rain drop 3%
Add

Day

77°
Partly Cloudy Day
Rain drop
3%
SSE 14 mph

Partly cloudy. High 77F. Winds SSE at 10 to 20 mph.

  • Humidity
    Humidity42%
  • UV index
    UV Index6 of 11
  • Sunrise
    Sunrise6:36 am
  • Sunset
    Sunset7:32 pm

Night

55°
Partly Cloudy Night
Rain drop
16%
S 11 mph

Partly cloudy skies. Low around 55F. Winds S at 10 to 15 mph.

  • Humidity
    Humidity50%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise1:27 am
  • Moonset
    Moonset10:20 am
  • Moon Phase - Day 21 Waning Gibbous
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