O'Fallon, MO Weather Forecast

Today's Weather

Wed, Oct 14

Humid; rain and a thunderstorm this morning followed by a shower in spots this afternoon; thunderstorms can produce damaging wind gusts and flooding downpours Hi: 78°

Tonight: Cloudy, warm and humid with a couple of showers and a thunderstorm Lo: 68°

Current Weather

1:51 PM

O'Fallon Weather Radar

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Clouds

Temperature

Hourly Weather

10-Day Weather Forecast

Today

10/14

78° 68°

Rain and a thunderstorm

Night: Cloudy, a shower and t-storm

100%

Thu

10/15

80° 51°

Cloudy, a shower and t-storm

Cooler with a stray t-storm

88%

Fri

10/16

56° 42°

Windy with partial sunshine

Mainly clear

25%

Sat

10/17

58° 38°

Cool with sunshine

Clear and chilly

Sun

10/18

65° 42°

Plenty of sun

Clear to partly cloudy

Mon

10/19

67° 46°

Clouds and sun

Clear to partly cloudy

11%

Tue

10/20

71° 50°

Mostly sunny and pleasant

Clear

19%

Wed

10/21

76° 56°

Warm with plenty of sunshine

Clear

Thu

10/22

73° 55°

Sunshine

Mainly clear

Fri

10/23

71° 54°

Mostly sunny

Mainly clear

Sun & Moon

11 hrs 15 mins

Rise 7:11 AM

Set 6:26 PM

Waxing Crescent

Rise 11:26 AM

Set 8:31 PM

Air Quality

Air Quality Fair

The air quality is generally acceptable for most individuals. However, sensitive groups may experience minor to moderate symptoms from long-term exposure.