Weather Forecast and Conditions for O'Fallon, Missouri 63366 - The Weather Channel | Weather.com
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76° Sunny
Sunny
Day 88° • Night 48°
Feels Like76°
Sunrise

7:06 am

Sunset

7:14 pm

Temperature
High / Low
88°/48°
Wind
9 mph
Humidity
Humidity
36%
Dew point
Dew Point
47°
Pressure
Pressure
29.90 in
UV index
UV Index
4 of 11
Visibility
Visibility
10 mi
Moon Phase - Day 2
Moon Phase
Waxing Crescent

Hourly Weather-

Now

Sunny Sunny
78°
Rain drop 0%
WSW 10 mph
Subtract

Sunny

  • Temperature feels like
    Feels Like78°
  • WindWSW 10 mph
  • Humidity
    Humidity34%
  • UV index
    UV Index5 of 11
  • Cloud
    Cloud Cover10%
  • Rain drop
    Rain Amount0 in

1 pm

Sunny Sunny
82°
Rain drop 0%
WSW 11 mph
Add

Sunny

  • Temperature feels like
    Feels Like82°
  • WindWSW 11 mph
  • Humidity
    Humidity28%
  • UV index
    UV Index5 of 11
  • Cloud
    Cloud Cover1%
  • Rain drop
    Rain Amount0 in

2 pm

Sunny Sunny
85°
Rain drop 0%
W 11 mph
Add

Sunny

  • Temperature feels like
    Feels Like85°
  • WindW 11 mph
  • Humidity
    Humidity26%
  • UV index
    UV Index5 of 11
  • Cloud
    Cloud Cover15%
  • Rain drop
    Rain Amount0 in

3 pm

Mostly Clear Day Mostly Sunny
86°
Rain drop 0%
W 12 mph
Add

Mostly Sunny

  • Temperature feels like
    Feels Like86°
  • WindW 12 mph
  • Humidity
    Humidity26%
  • UV index
    UV Index4 of 11
  • Cloud
    Cloud Cover20%
  • Rain drop
    Rain Amount0 in
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10 Day Weather-

Today

Mostly Clear Day Mostly Sunny
88°/48°
Rain drop 0%
Subtract

Day

88°
Mostly Clear Day
W 12 mph

Sunshine and a few afternoon clouds. Very warm. High 88F. Winds W at 10 to 15 mph.

  • Humidity
    Humidity29%
  • UV index
    UV Index5 of 11
  • Sunrise
    Sunrise7:06 am
  • Sunset
    Sunset7:14 pm

Night

48°
Partly Cloudy Night
Rain drop
7%
NNE 6 mph

Some clouds this evening will give way to mainly clear skies overnight. Low 48F. Winds NNE at 5 to 10 mph.

  • Humidity
    Humidity64%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise7:42 am
  • Moonset
    Moonset9:32 pm
  • Moon Phase - Day 2 Waxing Crescent

Sat 21

Sunny Sunny
86°/62°
Rain drop 8%
Add

Day

86°
Sunny
Rain drop
8%
SSE 7 mph

Sunny skies. Near record high temperatures. High 86F. Winds SSE at 5 to 10 mph.

  • Humidity
    Humidity51%
  • UV index
    UV Index6 of 11
  • Sunrise
    Sunrise7:04 am
  • Sunset
    Sunset7:15 pm

Night

62°
Clear Night
Rain drop
4%
SSW 9 mph

Clear. Low 62F. Winds SSW at 5 to 10 mph.

  • Humidity
    Humidity55%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise8:12 am
  • Moonset
    Moonset10:48 pm
  • Moon Phase - Day 3 Waxing Crescent

Sun 22

Mostly Cloudy Day Mostly Cloudy
86°/37°
Rain drop 9%
Add

Day

86°
Mostly Cloudy Day
Rain drop
9%
WSW 19 mph

Partly cloudy skies in the morning will give way to cloudy skies during the afternoon. High 86F. WSW winds at 5 to 10 mph, increasing to 15 to 25 mph. Higher wind gusts possible.

  • Humidity
    Humidity49%
  • UV index
    UV Index6 of 11
  • Sunrise
    Sunrise7:03 am
  • Sunset
    Sunset7:16 pm

Night

37°
Partly Cloudy Night
Mixed precipitation
3%
N 19 mph

A few clouds. Low 37F. Winds N at 15 to 25 mph.

  • Humidity
    Humidity60%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise8:47 am
  • Moonset
    Moonset--
  • Moon Phase - Day 4 Waxing Crescent

Mon 23

Partly Cloudy Day Partly Cloudy
58°/38°
Rain drop 3%
Add

Day

58°
Partly Cloudy Day
Rain drop
3%
NNE 9 mph

Partly cloudy. High 58F. Winds NNE at 5 to 10 mph.

  • Humidity
    Humidity48%
  • UV index
    UV Index5 of 11
  • Sunrise
    Sunrise7:01 am
  • Sunset
    Sunset7:17 pm

Night

38°
Mostly Cloudy Night
Mixed precipitation
2%
ESE 5 mph

Partly cloudy skies during the evening will give way to cloudy skies overnight. Low 38F. Winds light and variable.

  • Humidity
    Humidity56%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise9:29 am
  • Moonset
    Moonset12:05 am
  • Moon Phase - Day 5 Waxing Crescent
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