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  • Tonight

    Jul 27

    Partly cloudy and warm Lo 76°
  • Tue

    Jul 28

    Partly sunny, hot and humid 96°Lo 78°
    more
  • Wed

    Jul 29

    Partly sunny, a stray t-storm 90°Lo 66°
    more
  • Thu

    Jul 30

    Sunny and pleasant 88°Lo 65°
    more
  • Fri

    Jul 31

    Mostly sunny 91°Lo 68°
    more
< Previous 8 hours Next 8 hours >
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Forecast
T-storms
Mostly Cloudy
T-storms
T-storms
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Temp (°F) 91° 83° 81° 81° 81° 80° 80° 80°
RealFeel® 101° 95° 88° 88° 91° 90° 88° 88°
Humidity 60% 82% 84% 87% 89% 86% 84% 87%
   
  5pm 6pm 7pm 8pm 9pm 10pm 11pm 12am
Rain
 
54%
 
46%
 
51%
 
51%
 
47%
 
40%
 
34%
 
34%
Snow
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Ice
 
0%
 
0%
 
0%
 
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  5pm 6pm 7pm 8pm 9pm 10pm 11pm 12am
Wind (mph) 6 NE 6 NE 6 NE 6 NE 6 NE 6 ENE 5 ENE 5 E
UV Index 2 1 0 0 0 0 0 0
Cloud Cover 67% 87% 78% 77% 45% 45% 45% 45%
Dew Point 76° 77° 76° 76° 77° 76° 75° 75°
Middle Grid line 95 F Middle Grid line 90 F Middle Grid line 85 F Middle Grid line 80 F Middle Grid line 75 F

Temperature History - Jul 27

more Historical Weather Data >
  Today Normal Record 7/27/2014
High 92° 89° N/A 90°
Low 76° 68° N/A 70°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 5:59 AM with 14:20 of sunlight, then sets at 8:19 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 4:54 PM with 10:19 of moolight, then sets at 3:13 AM

O'Fallon Weather Report

Dangerous Heat to Sizzle Plains, Southern US This Week

July 27, 2015; 9:04 PM ET

Several days of excessive heat and humidity will put many at risk across a large portion of the United States this week. more >