O FALLON, MO 63368 Weather Forecast & Current Conditions

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SPIRIT OF ST. LOUIS, MO
Current Weather

5:54 PM CDT AUG 15, 2025
Scattered Clouds
95°F
Feels Like: 104°F
Dewpoint: 72°F
Rel. Hum.: 48%
Visibility: 10 miles
Wind: SSW at 3 mph
Pressure: 30.01 inches
Last 72 hours

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O FALLON, MO 63368
Weather Forecast

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Snow Depth pages
TONIGHT
Mostly clear. Lows in the mid 70s. South winds around 5 mph. Heat index values up to 102 early this evening.
SATURDAY
Sunny, hot with highs in the upper 90s. South winds around 5 mph. Heat index values up to 107.
SATURDAY NIGHT
Mostly clear. Lows in the mid 70s. South winds around 5 mph. Heat index values up to 103 early in the evening.
SUNDAY
Sunny, hot with highs in the upper 90s. South winds around 5 mph. Heat index values up to 108.
SUNDAY NIGHT
Mostly clear. Lows in the mid 70s. Southeast winds around 5 mph. Heat index values up to 104 early in the evening.
MONDAY AND MONDAY NIGHT
Mostly clear. Hot. Highs in the upper 90s. Lows in the mid 70s. Heat index values up to 105.
TUESDAY
Sunny. A slight chance of showers and thunderstorms in the afternoon. Hot with highs in the mid 90s. Chance of rain 20 percent. Heat index values up to 105.
TUESDAY NIGHT
Partly cloudy. A chance of showers and thunderstorms, mainly in the evening. Lows in the lower 70s. Chance of rain 30 percent. Heat index values up to 100 early in the evening.
WEDNESDAY
Mostly sunny with a slight chance of showers and thunderstorms. Not as warm with highs in the mid 80s. Chance of rain 20 percent.
WEDNESDAY NIGHT
Partly cloudy. Lows in the upper 60s.
THURSDAY THROUGH FRIDAY
Mostly clear. Highs in the mid 80s. Lows in the mid 60s.

Visible Weather Satellite
O FALLON, MO 63368
Infrared Weather Satellite
O FALLON, MO 63368
NEXRAD Weather Radar
O FALLON, MO 63368

SPIRIT OF ST. LOUIS, MO 3 hourly weather forecast

weather forecast created  6:00 AM MDT  8/15/2025
Friday
15 AUG 2025
O FALLON, MO 63368 weather forecast Day 1, 12 hours 1 PM 92° 100° Clear 1%

0% Thunder
( 13% severe)
SW   5 52% 72°
High 96° O FALLON, MO 63368 weather forecast Day 1, 15 hours 4 PM 95° 101° Clear SSW   5 43% 69°
Clear



O FALLON, MO 63368 weather forecast Day 1, 18 hours 7 PM 91° 98° Clear 1%

0% Thunder
( 9% severe)
SSE   5 52% 71°
O FALLON, MO 63368 weather forecast Day 1, 21 hours 10 PM 83° 88° Clear SSE   3 67% 71°
Saturday
16 AUG 2025
O FALLON, MO 63368 weather forecast Day 2, 0 hours 1 AM 80° 83° Clear 2%

0% Thunder
( 5% severe)
S   2 72% 70°
Low 74° O FALLON, MO 63368 weather forecast Day 2, 3 hours 4 AM 76° 77° Clear S   2 79% 69°
High 97° O FALLON, MO 63368 weather forecast Day 2, 6 hours 7 AM 76° 77° Clear 2%

0% Thunder
( 5% severe)
SSW   1 82% 70°

Clear



O FALLON, MO 63368 weather forecast Day 2, 9 hours 10 AM 88° 96° Clear SW   3 61% 73°
O FALLON, MO 63368 weather forecast Day 2, 12 hours 1 PM 94° 102° Clear 10%
RAIN
<.01 in
0% Thunder
( 15% severe)
SSW   5 49% 72°
O FALLON, MO 63368 weather forecast Day 2, 15 hours 4 PM 96° 103° Partly Cloudy S   5 43% 70°
O FALLON, MO 63368 weather forecast Day 2, 18 hours 7 PM 91° 99° Partly Cloudy 1%

0% Thunder
( 11% severe)
S   3 54% 72°
O FALLON, MO 63368 weather forecast Day 2, 21 hours 10 PM 83° 88° Partly Cloudy SSE   2 70% 72°
Sunday
17 AUG 2025
O FALLON, MO 63368 weather forecast Day 3, 0 hours 1 AM 79° 82° Clear 1%

0% Thunder
( 6% severe)
S   2 77% 71°
Low 74° O FALLON, MO 63368 weather forecast Day 3, 3 hours 4 AM 76° 77° Clear SSW   1 82% 70°
High 97° O FALLON, MO 63368 weather forecast Day 3, 6 hours 7 AM 76° 77° Clear 1%

0% Thunder
( 5% severe)
SSW   1 82% 70°

Clear



O FALLON, MO 63368 weather forecast Day 3, 9 hours 10 AM 88° 96° Clear SW   2 61% 73°
O FALLON, MO 63368 weather forecast Day 3, 15 hours 1 PM 94° 102° Clear 4%

0% Thunder
( 18% severe)
S   3 49% 72°
O FALLON, MO 63368 weather forecast Day 3, 18 hours 4 PM 96° 102° Clear SSE   5 42% 69°
O FALLON, MO 63368 weather forecast Day 3, 21 hours 7 PM 92° 99° Partly Cloudy     SE   3 51% 71°

SPIRIT OF ST. LOUIS, MO extended weather forecast

Monday
18 AUG 2025
Tuesday
19 AUG 2025
Wednesday
20 AUG 2025
Thursday
21 AUG 2025
Friday
22 AUG 2025
Low 72° Low 70° Low 71° Low 67° Low 65°
High 102° High 99° High 89° High 88° High 87°
O FALLON, MO 63368 weather forecast Day 4 O FALLON, MO 63368 weather forecast Day 5 O FALLON, MO 63368 weather forecast Day 6 O FALLON, MO 63368 weather forecast Day 7 <!--SEARCHED_TOWN_NAME--> weather forecast Day 8
Clear
10% Rain
Partly Cloudy
24% Rain
Partly Cloudy
42% Rain
Partly Cloudy
13% Rain
Partly Cloudy
18% Rain
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