O FALLON, IL 62269 Weather Forecast & Current Conditions

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SCOTT AFB, IL
Current Weather

12:55 AM CDT APR 5, 2026
Clear
43°F
Feels Like: 38°F
Dewpoint: 34°F
Rel. Hum.: 70%
Visibility: 10 miles
Wind: W at 8 mph
Pressure: 30.19 inches
Last 72 hours

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O FALLON, IL 62269
Weather Forecast

Snowfall Forecast pages
Snow Depth pages
TONIGHT
Partly cloudy this evening, then clearing. Much cooler with lows in the upper 30s. Northwest winds 10 to 15 mph. Gusts up to 30 mph this evening.
SUNDAY
Sunny. Highs in the upper 50s. Northwest winds 10 to 15 mph.
SUNDAY NIGHT
Clear. Lows around 40. West winds 5 to 10 mph.
MONDAY
Sunny. Highs in the lower 60s. Northwest winds 5 to 10 mph.
MONDAY NIGHT
Mostly cloudy. A slight chance of rain showers after midnight. Lows in the mid 30s. North winds 5 to 10 mph. Chance of rain 20 percent.
TUESDAY AND TUESDAY NIGHT
Mostly cloudy. Highs in the lower 50s. Lows in the upper 30s.
WEDNESDAY
Partly sunny. Not as cool with highs in the lower 70s.
WEDNESDAY NIGHT
Mostly cloudy in the evening, then becoming partly cloudy. Not as cool with lows in the mid 50s.
THURSDAY
Mostly sunny. A slight chance of showers in the afternoon. Highs in the mid 70s. Chance of rain 20 percent.
THURSDAY NIGHT
Mostly cloudy with a slight chance of showers and thunderstorms. Lows in the mid 50s. Chance of rain 20 percent.
FRIDAY
Partly sunny. A slight chance of showers in the morning, then a chance of showers with a slight chance of thunderstorms in the afternoon. Highs in the mid 70s. Chance of rain 30 percent.
FRIDAY NIGHT
Mostly cloudy with a chance of showers with a slight chance of thunderstorms. Lows in the upper 50s. Chance of rain 40 percent.
SATURDAY
Mostly cloudy in the morning, then becoming partly sunny. A chance of showers with a slight chance of thunderstorms. Highs in the upper 70s. Chance of rain 50 percent.

Visible Weather Satellite
O FALLON, IL 62269
Infrared Weather Satellite
O FALLON, IL 62269
NEXRAD Weather Radar
O FALLON, IL 62269

SCOTT AFB, IL 3 hourly weather forecast

weather forecast created  5:00 PM PDT  4/ 4/2026
Sunday
5 APR 2026
O FALLON, IL 62269 weather forecast Day 1, 0 hours 1 AM 45° 41° Partly Cloudy 0%

0% Thunder
( 0% severe)
WNW   7 71% 36°
Low 39° O FALLON, IL 62269 weather forecast Day 1, 3 hours 4 AM 42° 38° Partly Cloudy WNW   7 76% 35°
High 60° O FALLON, IL 62269 weather forecast Day 1, 6 hours 7 AM 40° 35° Partly Cloudy 0%

0% Thunder
( 0% severe)
NW   8 79% 34°

Clear



O FALLON, IL 62269 weather forecast Day 1, 9 hours 10 AM 47° 42° Clear NW   12 63% 35°
O FALLON, IL 62269 weather forecast Day 1, 12 hours 1 PM 54° 50° Clear 0%

0% Thunder
( 0% severe)
NW   13 48% 35°
O FALLON, IL 62269 weather forecast Day 1, 15 hours 4 PM 59° 57° Clear NW   12 42% 36°
O FALLON, IL 62269 weather forecast Day 1, 18 hours 7 PM 55° 53° Clear 0%

0% Thunder
( 1% severe)
NW   7 49% 36°
O FALLON, IL 62269 weather forecast Day 1, 21 hours 10 PM 48° 47° Clear W   2 65% 37°
Monday
6 APR 2026
O FALLON, IL 62269 weather forecast Day 2, 0 hours 1 AM 44° 43° Clear 1%

0% Thunder
( 1% severe)
WSW   2 73% 36°
Low 40° O FALLON, IL 62269 weather forecast Day 2, 3 hours 4 AM 42° 40° Clear WSW   3 79% 36°
High 63° O FALLON, IL 62269 weather forecast Day 2, 6 hours 7 AM 41° 38° Clear 0%

0% Thunder
( 1% severe)
WNW   5 82% 36°

Clear



O FALLON, IL 62269 weather forecast Day 2, 9 hours 10 AM 53° 50° Clear NW   8 61% 40°
O FALLON, IL 62269 weather forecast Day 2, 12 hours 1 PM 60° 58° Clear 2%

0% Thunder
( 2% severe)
NW   10 46% 39°
O FALLON, IL 62269 weather forecast Day 2, 15 hours 4 PM 62° 61° Partly Cloudy NNW   10 41% 38°
O FALLON, IL 62269 weather forecast Day 2, 18 hours 7 PM 56° 54° Partly Cloudy 3%

0% Thunder
( 2% severe)
NNW   9 47% 36°
O FALLON, IL 62269 weather forecast Day 2, 21 hours 10 PM 49° 46° Mostly Cloudy NNW   7 58% 35°

SCOTT AFB, IL extended weather forecast

Tuesday
7 APR 2026
Wednesday
8 APR 2026
Thursday
9 APR 2026
Friday
10 APR 2026
Saturday
11 APR 2026
Low 38° Low 41° Low 52° Low 53° Low 52°
High 55° High 71° High 67° High 71° High 79°
O FALLON, IL 62269 weather forecast Day 3 O FALLON, IL 62269 weather forecast Day 4 O FALLON, IL 62269 weather forecast Day 5 O FALLON, IL 62269 weather forecast Day 6 O FALLON, IL 62269 weather forecast Day 7
Overcast
42% Rain
Partly Cloudy
14% Rain
Overcast
46% Rain
Overcast
67% Rain
Overcast
42% Rain
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