Weather Forecast and Conditions for O'Fallon, Missouri 63366 - The Weather Channel | Weather.com
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62° Cloudy
Cloudy
Day 72° • Night 58°
Feels Like60°
Sunrise

6:52 am

Sunset

7:23 pm

Temperature
High / Low
72°/58°
Wind
11 mph
Humidity
Humidity
29%
Dew point
Dew Point
29°
Pressure
Pressure
30.18 in
UV index
UV Index
2 of 11
Visibility
Visibility
10 mi
Moon Phase - Day 11
Moon Phase
Waxing Gibbous

Hourly Weather-

Now

Cloudy Cloudy
62°
Rain drop 0%
S 11 mph
Subtract

Cloudy

  • Temperature feels like
    Feels Like60°
  • WindS 11 mph
  • Humidity
    Humidity30%
  • UV index
    UV Index2 of 11
  • Cloud
    Cloud Cover91%
  • Rain drop
    Rain Amount0 in

1 pm

Cloudy Cloudy
65°
Rain drop 0%
S 12 mph
Add

Cloudy

  • Temperature feels like
    Feels Like64°
  • WindS 12 mph
  • Humidity
    Humidity29%
  • UV index
    UV Index3 of 11
  • Cloud
    Cloud Cover90%
  • Rain drop
    Rain Amount0 in

2 pm

Cloudy Cloudy
67°
Rain drop 0%
S 12 mph
Add

Cloudy

  • Temperature feels like
    Feels Like67°
  • WindS 12 mph
  • Humidity
    Humidity29%
  • UV index
    UV Index1 of 11
  • Cloud
    Cloud Cover100%
  • Rain drop
    Rain Amount0 in

3 pm

Mostly Cloudy Day Mostly Cloudy
68°
Rain drop 0%
S 13 mph
Add

Mostly Cloudy

  • Temperature feels like
    Feels Like68°
  • WindS 13 mph
  • Humidity
    Humidity32%
  • UV index
    UV Index3 of 11
  • Cloud
    Cloud Cover79%
  • Rain drop
    Rain Amount0 in
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10 Day Weather-

Today

Cloudy Cloudy
72°/58°
Rain drop 0%
Subtract

Day

72°
Cloudy
S 13 mph

Generally cloudy. Much warmer. High 72F. Winds S at 10 to 20 mph.

  • Humidity
    Humidity31%
  • UV index
    UV Index4 of 11
  • Sunrise
    Sunrise6:52 am
  • Sunset
    Sunset7:23 pm

Night

58°
Partly Cloudy Night
Rain drop
3%
S 10 mph

A few clouds. Low 58F. Winds S at 10 to 15 mph.

  • Humidity
    Humidity49%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise4:08 pm
  • Moonset
    Moonset5:12 am
  • Moon Phase - Day 11 Waxing Gibbous

Mon 30

Mostly Clear Day Mostly Sunny
87°/64°
Rain drop 2%
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Day

87°
Mostly Clear Day
Rain drop
2%
SSW 16 mph

A few clouds from time to time. High 87F. Winds SSW at 10 to 20 mph.

  • Humidity
    Humidity47%
  • UV index
    UV Index6 of 11
  • Sunrise
    Sunrise6:50 am
  • Sunset
    Sunset7:24 pm

Night

64°
Partly Cloudy Night
Rain drop
3%
SSW 12 mph

A few clouds from time to time. Low 64F. Winds SSW at 10 to 15 mph.

  • Humidity
    Humidity52%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise5:15 pm
  • Moonset
    Moonset5:38 am
  • Moon Phase - Day 12 Waxing Gibbous

Tue 31

Isolated Thunderstorms Isolated Thunderstorms
85°/54°
Rain drop 35%
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Day

85°
Isolated Thunderstorms
Rain drop
35%
SSW 19 mph

A mix of clouds and sun with the chance of an isolated thunderstorm in the afternoon. Gusty winds and small hail are possible. High around 85F. Winds SSW at 15 to 25 mph. Chance of rain 40%.

  • Humidity
    Humidity48%
  • UV index
    UV Index6 of 11
  • Sunrise
    Sunrise6:49 am
  • Sunset
    Sunset7:25 pm

Night

54°
Rain
Rain drop
81%
NW 9 mph

Showers early, becoming a steady rain late. Low 54F. Winds NW at 5 to 10 mph. Chance of rain 80%. Rainfall around a quarter of an inch.

  • Humidity
    Humidity67%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise6:19 pm
  • Moonset
    Moonset6:01 am
  • Moon Phase - Day 13 Waxing Gibbous

Wed 01

Rain Rain
61°/55°
Rain drop 91%
Add

Day

61°
Rain
Rain drop
91%
ENE 10 mph

Rain likely. Potential for heavy rainfall. High 61F. Winds ENE at 10 to 15 mph. Chance of rain 90%. Rainfall near a half an inch.

  • Humidity
    Humidity81%
  • UV index
    UV Index3 of 11
  • Sunrise
    Sunrise6:47 am
  • Sunset
    Sunset7:26 pm

Night

55°
Rain
Rain drop
88%
ESE 9 mph

Periods of rain. Potential for heavy rainfall. Low around 55F. Winds ESE at 5 to 10 mph. Chance of rain 90%. Rainfall may reach one inch.

  • Humidity
    Humidity86%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise7:22 pm
  • Moonset
    Moonset6:24 am
  • Moon Phase - Day 14 Full Moon
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