O Fallon Hourly Forecast
Next 48 Hours
Today
Mostly cloudy. Highs in the upper 40s. Northwest winds 10 to 15 mph with gusts up to 25 mph.
Tonight
Partly cloudy. Lows in the lower 30s. Northwest winds 5 to 10 mph.
| Fri, Nov 22nd | Temp | Humidity | Wind (mph) | Pressure | Dew Point | Precip. |
|---|---|---|---|---|---|---|
11 AM Overcast  UV Index: 2.1 |
39°F Feels 32°F |
77% | 10.1 NW | 30.17 inHg | 32.9°F | 0% |
12 PM Overcast UV Index: 2.3 |
40°F Feels 33°F |
75% | 11.6 NW | 30.17 inHg | 33.4°F | 0% |
1 PM Overcast UV Index: 2 |
41°F Feels 34°F |
74% | 11.4 NW | 30.13 inHg | 32.6°F | 0% |
2 PM Overcast UV Index: 1.4 |
42°F Feels 35°F |
73% | 11.4 NW | 30.16 inHg | 34°F | 0% |
3 PM Overcast UV Index: 0.8 |
43°F Feels 36°F |
72% | 11.4 NW | 30.15 inHg | 34.3°F | 0% |
4 PM Overcast UV Index: 0.2 |
43°F Feels 37°F |
69% | 10.5 NW | 30.1 inHg | 33.9°F | 0% |
5 PM Overcast  UV Index: 0 |
42°F Feels 37°F |
73% | 9.4 WNW | 30.13 inHg | 34.4°F | 0% |
6 PM Overcast UV Index: 0 |
41°F Feels 36°F |
74% | 6.9 W | 30.14 inHg | 34.4°F | 0% |
7 PM Partly Cloudy  UV Index: 0 |
41°F Feels 36°F |
81% | 6.9 WNW | 30.13 inHg | 34.2°F | 0% |
8 PM Overcast UV Index: 0 |
41°F Feels 36°F |
76% | 6.7 WNW | 30.14 inHg | 34.4°F | 0% |
9 PM Overcast UV Index: 0 |
38°F Feels 33°F |
77% | 6.5 WNW | 30.15 inHg | 34.2°F | 0% |
10 PM Overcast UV Index: 0 |
39°F Feels 35°F |
89% | 5.8 NW | 30.14 inHg | 32.5°F | 0% |
11 PM Overcast UV Index: 0 |
40°F Feels 36°F |
77% | 5.6 WNW | 30.14 inHg | 33.9°F | 0% |
Saturday
Mostly sunny. Highs in the mid 50s. Southwest winds around 5 mph.
Saturday Night
Partly cloudy. Lows in the upper 30s. South winds 5 to 10 mph.
| Sat, Nov 23rd | Temp | Humidity | Wind (mph) | Pressure | Dew Point | Precip. |
|---|---|---|---|---|---|---|
12 AM Overcast UV Index: 0 |
37°F Feels 32°F |
77% | 5.4 WNW | 30.14 inHg | 33.5°F | 0% |
1 AM Partly Cloudy UV Index: 0 |
35°F Feels 30°F |
91% | 4.5 WNW | 30.12 inHg | 31.3°F | 0% |
2 AM Partly Cloudy UV Index: 0 |
34°F Feels 29°F |
91% | 5.6 WNW | 30.12 inHg | 30.6°F | 0% |
3 AM Partly Cloudy UV Index: 0 |
33°F Feels 28°F |
91% | 5.4 WNW | 30.11 inHg | 30.2°F | 0% |
4 AM Clear  UV Index: 0 |
32°F Feels 28°F |
91% | 4.9 WSW | 30.11 inHg | 29.9°F | 0% |
5 AM Clear UV Index: 0 |
32°F Feels 28°F |
91% | 4.7 W | 30.12 inHg | 29.6°F | 0% |
6 AM Clear UV Index: 0 |
32°F Feels 28°F |
91% | 4.7 W | 30.13 inHg | 29.5°F | 0% |
7 AM Partly Cloudy  UV Index: 0 |
34°F Feels 30°F |
91% | 4.7 W | 30.14 inHg | 29.4°F | 0% |
8 AM Partly Cloudy UV Index: 0.2 |
35°F Feels 32°F |
85% | 3.8 WSW | 30.14 inHg | 30.8°F | 0% |
9 AM Partly Cloudy UV Index: 0.6 |
37°F Feels 34°F |
81% | 4 WSW | 30.15 inHg | 31.6°F | 0% |
10 AM Sunny UV Index: 1.3 |
40°F Feels 38°F |
78% | 4 WSW | 30.15 inHg | 32.3°F | 0% |
11 AM SunnyUV Index: 1.9 |
44°F Feels 41°F |
69% | 4.5 SW | 30.11 inHg | 34.4°F | 0% |
12 PM SunnyUV Index: 2 |
47°F Feels 44°F |
65% | 5.1 SW | 30.1 inHg | 35.5°F | 0% |
1 PM SunnyUV Index: 2.1 |
50°F Feels 48°F |
60% | 5.1 SW | 30.08 inHg | 36.6°F | 0% |
2 PM SunnyUV Index: 1.4 |
52°F Feels 50°F |
59% | 5.1 WSW | 30.05 inHg | 38.5°F | 0% |
3 PM SunnyUV Index: 0.7 |
54°F Feels 52°F |
58% | 5.4 SW | 30.03 inHg | 39.4°F | 0% |
4 PM SunnyUV Index: 0.2 |
54°F Feels 52°F |
57% | 5.1 SW | 30.01 inHg | 40.3°F | 0% |
5 PM Clear UV Index: 0 |
53°F Feels 51°F |
62% | 3.8 SSW | 30.01 inHg | 40.9°F | 0% |
6 PM Clear UV Index: 0 |
53°F Feels 51°F |
65% | 5.1 S | 30 inHg | 41.2°F | 0% |
7 PM Clear UV Index: 0 |
51°F Feels 48°F |
67% | 3.8 SSW | 30 inHg | 41.5°F | 0% |
8 PM Clear UV Index: 0 |
49°F Feels 46°F |
68% | 5.1 S | 29.99 inHg | 38.7°F | 0% |
9 PM Clear UV Index: 0 |
47°F Feels 44°F |
69% | 6 S | 29.98 inHg | 37.3°F | 0% |
10 PM Clear UV Index: 0 |
45°F Feels 41°F |
69% | 6.5 S | 29.97 inHg | 35.9°F | 0% |
11 PM Overcast UV Index: 0 |
44°F Feels 41°F |
70% | 6.5 SSW | 29.99 inHg | 33.9°F | 0% |
Sunday
Mostly sunny. Not as cool with highs in the mid 60s. South winds 10 to 15 mph with gusts up to 25 mph.
Sunday Night And Monday
Mostly cloudy with a 40 percent chance of rain. Lows in the upper 40s. Highs in the upper 50s.
| Sun, Nov 24th | Temp | Humidity | Wind (mph) | Pressure | Dew Point | Precip. |
|---|---|---|---|---|---|---|
12 AM Clear UV Index: 0 |
44°F Feels 40°F |
72% | 6.3 SSW | 29.96 inHg | 35.2°F | 0% |
1 AM Clear UV Index: 0 |
43°F Feels 40°F |
72% | 6.3 SSW | 29.95 inHg | 34.9°F | 0% |
2 AM Clear UV Index: 0 |
43°F Feels 39°F |
73% | 6.5 SSW | 29.94 inHg | 34.8°F | 0% |
3 AM Clear UV Index: 0 |
43°F Feels 39°F |
73% | 6.5 SSW | 29.94 inHg | 34.8°F | 0% |
4 AM Clear UV Index: 0 |
43°F Feels 39°F |
73% | 6.5 S | 29.94 inHg | 34.7°F | 0% |
5 AM Clear UV Index: 0 |
43°F Feels 39°F |
74% | 6.5 S | 29.92 inHg | 34.8°F | 0% |
6 AM Clear UV Index: 0 |
42°F Feels 38°F |
74% | 6.5 S | 29.92 inHg | 34.9°F | 0% |
7 AM SunnyUV Index: 0 |
43°F Feels 39°F |
75% | 6.7 S | 29.91 inHg | 34.9°F | 0% |
8 AM Partly Cloudy UV Index: 0.1 |
45°F Feels 40°F |
74% | 7.2 S | 29.91 inHg | 36.7°F | 0% |
9 AM Cloudy  UV Index: 0.2 |
46°F Feels 41°F |
73% | 8.1 S | 29.91 inHg | 37.5°F | 0% |
10 AM Overcast UV Index: 1 |
50°F Feels 47°F |
72% | 9.8 S | 29.91 inHg | 38.4°F | 0% |
Currently
 |
42°F |
30.17in
Barometer 73%
Humidity West 9.2mph Wind |
| Overcast | ||
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