Weather Forecast and Conditions for O'Fallon, Missouri 63366 - The Weather Channel | Weather.com
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35° Cloudy
Cloudy
Day 67° • Night 45°
Feels Like29°
Sunrise

7:09 am

Sunset

7:12 pm

Temperature
High / Low
67°/45°
Wind
7 mph
Humidity
Humidity
56%
Dew point
Dew Point
21°
Pressure
Pressure
30.03 in
UV index
UV Index
0 of 11
Visibility
Visibility
10 mi
Moon Phase - Day 29
Moon Phase
New Moon

Hourly Weather-

Now

Cloudy Cloudy
36°
Rain drop 2%
SSE 7 mph
Subtract

Cloudy

  • Temperature feels like
    Feels Like30°
  • WindSSE 7 mph
  • Humidity
    Humidity58%
  • UV index
    UV Index0 of 11
  • Cloud
    Cloud Cover93%
  • Mixed precipitation
    Precip Amount0 in

7 am

Mostly Cloudy Night Mostly Cloudy
37°
Rain drop 2%
S 7 mph
Add

Mostly Cloudy

  • Temperature feels like
    Feels Like31°
  • WindS 7 mph
  • Humidity
    Humidity59%
  • UV index
    UV Index0 of 11
  • Cloud
    Cloud Cover78%
  • Mixed precipitation
    Precip Amount0 in

8 am

Partly Cloudy Day Partly Cloudy
38°
Rain drop 1%
S 7 mph
Add

Partly Cloudy

  • Temperature feels like
    Feels Like33°
  • WindS 7 mph
  • Humidity
    Humidity60%
  • UV index
    UV Index0 of 11
  • Cloud
    Cloud Cover44%
  • Mixed precipitation
    Precip Amount0 in

9 am

Partly Cloudy Day Partly Cloudy
42°
Rain drop 1%
S 8 mph
Add

Partly Cloudy

  • Temperature feels like
    Feels Like37°
  • WindS 8 mph
  • Humidity
    Humidity59%
  • UV index
    UV Index1 of 11
  • Cloud
    Cloud Cover33%
  • Rain drop
    Rain Amount0 in
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10 Day Weather-

Today

Mostly Clear Day Mostly Sunny
67°/45°
Rain drop 11%
Subtract

Day

67°
Mostly Clear Day
Rain drop
11%
SSW 9 mph

Partly cloudy. High 67F. Winds SSW at 5 to 10 mph.

  • Humidity
    Humidity47%
  • UV index
    UV Index5 of 11
  • Sunrise
    Sunrise7:09 am
  • Sunset
    Sunset7:12 pm

Night

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

Partly to mostly cloudy. Low around 45F. Winds light and variable.

  • Humidity
    Humidity66%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise6:52 am
  • Moonset
    Moonset7:07 pm
  • Moon Phase - Day 29 New Moon

Thu 19

Partly Cloudy Day Partly Cloudy
77°/44°
Rain drop 7%
Add

Day

77°
Partly Cloudy Day
Rain drop
7%
WSW 7 mph

Partly cloudy skies. High 77F. Winds WSW at 5 to 10 mph.

  • Humidity
    Humidity49%
  • UV index
    UV Index5 of 11
  • Sunrise
    Sunrise7:07 am
  • Sunset
    Sunset7:13 pm

Night

44°
Mostly Clear Night
Rain drop
8%
NNW 5 mph

A few clouds overnight. Low 44F. Winds light and variable.

  • Humidity
    Humidity75%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise7:16 am
  • Moonset
    Moonset8:18 pm
  • Moon Phase - Day 1 Waxing Crescent

Fri 20

Partly Cloudy Day Partly Cloudy
83°/48°
Rain drop 8%
Add

Day

83°
Partly Cloudy Day
Rain drop
8%
W 8 mph

Some clouds in the morning will give way to mainly sunny skies for the afternoon. High 83F. Winds W at 5 to 10 mph.

  • Humidity
    Humidity51%
  • UV index
    UV Index5 of 11
  • Sunrise
    Sunrise7:06 am
  • Sunset
    Sunset7:14 pm

Night

48°
Partly Cloudy Night
Rain drop
6%
NW 5 mph

Partly cloudy. Low 48F. Winds light and variable.

  • Humidity
    Humidity64%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise7:42 am
  • Moonset
    Moonset9:31 pm
  • Moon Phase - Day 2 Waxing Crescent

Sat 21

Sunny Sunny
84°/58°
Rain drop 7%
Add

Day

84°
Sunny
Rain drop
7%
SSW 8 mph

Sunny skies. High 84F. Winds SSW at 5 to 10 mph.

  • Humidity
    Humidity49%
  • UV index
    UV Index6 of 11
  • Sunrise
    Sunrise7:04 am
  • Sunset
    Sunset7:15 pm

Night

58°
Clear Night
Rain drop
3%
SSW 8 mph

Clear skies. Low 58F. Winds SSW at 5 to 10 mph.

  • Humidity
    Humidity57%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise8:12 am
  • Moonset
    Moonset10:48 pm
  • Moon Phase - Day 3 Waxing Crescent
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