O Fallon Hourly Forecast

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Next 12 Hours

Flood Watch In Effect Through Tuesday Morning

Rest Of Tonight

A chance of thunderstorms. A chance of rain this evening, then rain. Near steady temperature in the upper 60s. South winds 15 to 20 mph with gusts up to 35 mph. Chance of rain near 100 percent.

Mon, Nov 4th	Temp	Humidity	Wind (mph)	Pressure	Dew Point	Precip.
10 PM Overcast UV Index: 0	68°F Feels 68°F Dew Point 62.8°F	85%	21 S	29.8 inHg	62.8°F	0%
11 PM Overcast UV Index: 0	67°F Feels 67°F Dew Point 62.6°F	84%	21.9 SSE	29.8 inHg	62.6°F	0%

Tuesday

A slight chance of thunderstorms. Rain, mainly in the morning. Highs in the upper 60s. South winds 15 to 20 mph with gusts up to 35 mph. Chance of rain near 100 percent.

Tuesday Night

Partly cloudy in the evening, then clearing. Much cooler. Less humid with lows in the mid 40s. West winds 5 to 10 mph with gusts up to 20 mph, becoming north after midnight.

Tue, Nov 5th	Temp	Humidity	Wind (mph)	Pressure	Dew Point	Precip.
12 AM Overcast UV Index: 0	67°F Feels 67°F Dew Point 62°F	85%	22.6 SSE	29.79 inHg	62°F	0%
1 AM Overcast UV Index: 0	67°F Feels 67°F Dew Point 62.3°F	86%	23.9 S	29.77 inHg	62.3°F	0%
2 AM Overcast UV Index: 0	67°F Feels 67°F Dew Point 62.6°F	86%	23.5 S	29.78 inHg	62.6°F	0%
3 AM Overcast UV Index: 0	67°F Feels 67°F Dew Point 62.7°F	85%	23.7 S	29.78 inHg	62.7°F	0%
4 AM Overcast UV Index: 0	67°F Feels 67°F Dew Point 62.3°F	85%	23.5 S	29.77 inHg	62.3°F	0%
5 AM Overcast UV Index: 0	66°F Feels 66°F Dew Point 61.9°F	86%	24.4 S	29.77 inHg	61.9°F	0%
6 AM Overcast UV Index: 0	66°F Feels 66°F Dew Point 61.6°F	86%	24.4 S	29.76 inHg	61.6°F	0%
7 AM Overcast UV Index: 0	66°F Feels 66°F Dew Point 61.5°F	86%	22.8 S	29.76 inHg	61.5°F	0%
8 AM Overcast UV Index: 0	65°F Feels 65°F Dew Point 61.2°F	87%	23.3 S	29.77 inHg	61.2°F	0%
9 AM Overcast UV Index: 0.1	64°F Feels 64°F Dew Point 61.2°F	89%	17.7 SSW	29.78 inHg	61.2°F	0%