O Fallon Hourly Forecast
Next 48 Hours
Today
Sunny. Highs in the mid 60s. Southeast winds 5 to 10 mph.
Tonight
Partly cloudy. A slight chance of rain after midnight. Not as cool with lows in the upper 40s. Southeast winds 5 to 10 mph. Chance of rain 20 percent.
| Sat, Nov 2nd | Temp | Humidity | Wind (mph) | Pressure | Dew Point | Precip. |
|---|---|---|---|---|---|---|
12 PM Sunny UV Index: 3.3 |
60°F Feels 60°F |
54% | 9.4 SE | 30.32 inHg | 46°F | 0% |
1 PM SunnyUV Index: 3.7 |
64°F Feels 64°F |
47% | 9.6 SE | 30.26 inHg | 42.1°F | 0% |
2 PM SunnyUV Index: 3.2 |
66°F Feels 66°F |
43% | 9.6 SE | 30.28 inHg | 44.8°F | 0% |
3 PM SunnyUV Index: 2.2 |
65°F Feels 65°F |
42% | 9.6 SE | 30.26 inHg | 44.6°F | 0% |
4 PM SunnyUV Index: 1 |
66°F Feels 66°F |
43% | 9.4 SE | 30.21 inHg | 41°F | 0% |
5 PM SunnyUV Index: 0.3 |
64°F Feels 64°F |
47% | 8.1 SE | 30.23 inHg | 45.7°F | 0% |
6 PM SunnyUV Index: 0 |
62°F Feels 62°F |
54% | 7.2 SE | 30.23 inHg | 45.4°F | 0% |
7 PM Clear  UV Index: 0 |
58°F Feels 56°F |
56% | 7.6 ESE | 30.19 inHg | 44.7°F | 0% |
8 PM Clear UV Index: 0 |
55°F Feels 53°F |
64% | 8.3 SE | 30.23 inHg | 41.5°F | 0% |
9 PM Clear UV Index: 0 |
54°F Feels 51°F |
67% | 8.9 SE | 30.22 inHg | 41.8°F | 0% |
10 PM Clear UV Index: 0 |
54°F Feels 51°F |
64% | 10.1 SE | 30.17 inHg | 40.7°F | 0% |
11 PM Cloudy  UV Index: 0 |
53°F Feels 50°F |
64% | 11 SE | 30.19 inHg | 41.6°F | 0% |
Sunday
A slight chance of thunderstorms in the morning. Mostly cloudy with a chance of rain. Highs in the mid 70s. Southeast winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 50 percent.
Sunday Night
Cloudy. A chance of rain in the evening, then rain likely with a slight chance of thunderstorms after midnight. Not as cool. More humid with lows in the mid 60s. South winds 15 to 20 mph with gusts up to 30 mph. Chance of rain 70 percent.
| Sun, Nov 3rd | Temp | Humidity | Wind (mph) | Pressure | Dew Point | Precip. |
|---|---|---|---|---|---|---|
12 AM Partly Cloudy  UV Index: 0 |
54°F Feels 51°F |
65% | 10.5 SE | 30.18 inHg | 41.2°F | 0% |
1 AM Cloudy UV Index: 0 |
54°F Feels 51°F |
57% | 11 SE | 30.1 inHg | 40.4°F | 0% |
2 AM Moderate Rain At Times UV Index: 0 |
54°F Feels 51°F |
64% | 12.1 SE | 30.08 inHg | 42.6°F | 100% Rain est. 0.03in |
3 AM Heavy Rain At Times UV Index: 0 |
54°F Feels 51°F |
68% | 12.8 SE | 30.06 inHg | 43.8°F | 100% Rain est. 0.04in |
4 AM Light Rain Shower UV Index: 0 |
54°F Feels 51°F |
71% | 12.1 SE | 30.05 inHg | 44.9°F | 100% Rain est. 0.06in |
5 AM Light Rain ShowerUV Index: 0 |
54°F Feels 51°F |
76% | 12.1 SE | 30.03 inHg | 47°F | 100% Rain est. 0.03in |
6 AM Light Rain ShowerUV Index: 0 |
55°F Feels 52°F |
78% | 12.8 SE | 30.02 inHg | 48.1°F | 100% Rain est. 0.01in |
7 AM Cloudy UV Index: 0 |
56°F Feels 53°F |
81% | 12.8 SE | 30.01 inHg | 49.1°F | 0% |
8 AM Cloudy  UV Index: 0.1 |
57°F Feels 54°F |
86% | 13.2 SSE | 29.99 inHg | 52.5°F | 0% |
9 AM Cloudy UV Index: 0.3 |
58°F Feels 55°F |
88% | 14.3 SSE | 29.99 inHg | 54.1°F | 0% |
10 AM Overcast  UV Index: 0.8 |
59°F Feels 57°F |
90% | 13.2 SSE | 29.98 inHg | 55.8°F | 0% |
11 AM Heavy Rain At Times UV Index: 1.5 |
60°F Feels 59°F |
92% | 11.6 SSE | 29.96 inHg | 58°F | 100% Rain est. 0.04in |
12 PM Moderate Or Heavy Rain Shower UV Index: 1.1 |
61°F Feels 61°F |
93% | 13.6 SSE | 29.95 inHg | 59.1°F | 100% Rain est. 0.07in |
1 PM Light Rain UV Index: 2.1 |
64°F Feels 64°F |
93% | 15.9 S | 29.93 inHg | 60.1°F | 100% Rain est. 0.09in |
2 PM Light RainUV Index: 1.8 |
67°F Feels 67°F |
84% | 14.3 S | 29.9 inHg | 62.2°F | 100% Rain est. 0.04in |
3 PM Light RainUV Index: 0.9 |
70°F Feels 70°F |
80% | 14.8 S | 29.88 inHg | 63.3°F | 100% Rain est. 0.02in |
4 PM Partly Cloudy  UV Index: 0.3 |
70°F Feels 70°F |
75% | 14.8 S | 29.86 inHg | 64.3°F | 0% |
5 PM Partly Cloudy UV Index: 0 |
69°F Feels 69°F |
80% | 13.9 SSE | 29.86 inHg | 63.4°F | 0% |
6 PM Partly Cloudy UV Index: 0 |
69°F Feels 69°F |
82% | 12.8 SSE | 29.86 inHg | 63°F | 0% |
7 PM Partly Cloudy UV Index: 0 |
68°F Feels 68°F |
84% | 11.2 S | 29.86 inHg | 62.6°F | 0% |
8 PM Partly Cloudy UV Index: 0 |
67°F Feels 67°F |
85% | 11.6 SSE | 29.86 inHg | 62.4°F | 0% |
9 PM Partly Cloudy UV Index: 0 |
67°F Feels 67°F |
86% | 12.5 SSE | 29.85 inHg | 62.3°F | 0% |
10 PM Partly Cloudy UV Index: 0 |
69°F Feels 69°F |
86% | 12.8 SSE | 29.85 inHg | 62.2°F | 0% |
11 PM Patchy Rain Nearby UV Index: 0 |
67°F Feels 67°F |
64% | 14.5 SSE | 29.83 inHg | 57.9°F | 82% |
Monday
Rain likely with a slight chance of thunderstorms in the morning, then rain likely with a chance of thunderstorms in the afternoon. Highs in the lower 70s. South winds 15 to 20 mph with gusts up to 30 mph. Chance of rain 70 percent.
Monday Night
A chance of thunderstorms. Rain. Lows in the lower 60s. Chance of rain near 100 percent.
| Mon, Nov 4th | Temp | Humidity | Wind (mph) | Pressure | Dew Point | Precip. |
|---|---|---|---|---|---|---|
12 AM Partly Cloudy UV Index: 0 |
66°F Feels 66°F |
87% | 16.3 SSE | 29.83 inHg | 61.7°F | 0% |
1 AM Partly Cloudy UV Index: 0 |
66°F Feels 66°F |
87% | 17.2 SSE | 29.82 inHg | 61.5°F | 0% |
2 AM Partly Cloudy UV Index: 0 |
66°F Feels 66°F |
84% | 19.2 S | 29.79 inHg | 61.2°F | 0% |
3 AM Partly Cloudy UV Index: 0 |
67°F Feels 67°F |
83% | 20.6 S | 29.78 inHg | 61.1°F | 0% |
4 AM Overcast  UV Index: 0 |
67°F Feels 67°F |
81% | 21.5 S | 29.77 inHg | 60.9°F | 0% |
5 AM Heavy Rain At TimesUV Index: 0 |
66°F Feels 66°F |
86% | 18.3 S | 29.77 inHg | 61.9°F | 100% Rain est. 0.04in |
6 AM Moderate Or Heavy Rain Shower UV Index: 0 |
66°F Feels 66°F |
88% | 19.9 S | 29.77 inHg | 62.4°F | 100% Rain est. 0.06in |
7 AM Light RainUV Index: 0 |
66°F Feels 66°F |
90% | 20.8 S | 29.78 inHg | 62.9°F | 100% Rain est. 0.08in |
8 AM Light RainUV Index: 0.1 |
66°F Feels 66°F |
89% | 15.7 SSW | 29.81 inHg | 62.2°F | 100% Rain est. 0.04in |
9 AM Light RainUV Index: 0.2 |
66°F Feels 66°F |
88% | 7.4 WSW | 29.83 inHg | 61.9°F | 100% Rain est. 0.02in |
10 AM Overcast UV Index: 0.6 |
65°F Feels 65°F |
88% | 3.4 ESE | 29.85 inHg | 61.6°F | 0% |
11 AM Moderate Or Heavy Rain ShowerUV Index: 0.6 |
65°F Feels 65°F |
91% | 8.7 SSE | 29.82 inHg | 62°F | 100% Rain est. 0.14in |
Currently
 |
57°F |
30.32in
Barometer 53%
Humidity East 4.6mph Wind |
| Fair | ||
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