Alton Hourly Forecast
Next 48 Hours
Frost Advisory Remains In Effect Until 8 Am Cst This Morning
...FREEZE WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO 8 AM CST SATURDAY...
Rest Of The Night
Clear. Areas of frost. Lows in the mid 30s. Northwest winds 5 to 10 mph with gusts up to 20 mph.
| Fri, Nov 22nd | Temp | Humidity | Wind (mph) | Pressure | Dew Point | Precip. |
|---|---|---|---|---|---|---|
4 AM Clear  UV Index: 0 |
41°F Feels 36°F |
59% | 7.8 WNW | 30.02 inHg | 28°F | 0% |
5 AM Clear UV Index: 0 |
40°F Feels 35°F |
60% | 8.3 NW | 30.02 inHg | 27.5°F | 0% |
6 AM Clear UV Index: 0 |
39°F Feels 33°F |
62% | 8.5 NW | 30.04 inHg | 27.5°F | 0% |
7 AM Sunny UV Index: 0 |
39°F Feels 33°F |
64% | 8.3 NW | 30.05 inHg | 27.3°F | 0% |
8 AM SunnyUV Index: 0.4 |
39°F Feels 33°F |
67% | 7.8 NW | 30.07 inHg | 27.7°F | 0% |
9 AM SunnyUV Index: 1.2 |
41°F Feels 35°F |
64% | 9.6 NNW | 30.1 inHg | 28.9°F | 0% |
10 AM SunnyUV Index: 2.2 |
45°F Feels 40°F |
62% | 9.8 NNW | 30.11 inHg | 30.1°F | 0% |
11 AM SunnyUV Index: 3 |
48°F Feels 44°F |
60% | 9.4 NNW | 30.11 inHg | 36.1°F | 0% |
12 PM SunnyUV Index: 3.2 |
51°F Feels 47°F |
58% | 9.4 NNW | 30.1 inHg | 37°F | 0% |
1 PM SunnyUV Index: 2.7 |
52°F Feels 49°F |
56% | 9.4 NNW | 30.09 inHg | 37.6°F | 0% |
2 PM SunnyUV Index: 1.8 |
54°F Feels 51°F |
54% | 9.4 NNW | 30.08 inHg | 38.1°F | 0% |
3 PM SunnyUV Index: 0.9 |
54°F Feels 52°F |
54% | 10.1 NW | 30.06 inHg | 38.6°F | 0% |
4 PM SunnyUV Index: 0.2 |
52°F Feels 49°F |
55% | 9.8 NW | 30.06 inHg | 39°F | 0% |
5 PM Clear UV Index: 0 |
51°F Feels 49°F |
58% | 8.1 NW | 30.07 inHg | 35°F | 0% |
6 PM Clear UV Index: 0 |
51°F Feels 49°F |
59% | 5.6 NW | 30.08 inHg | 37.1°F | 0% |
7 PM Clear UV Index: 0 |
48°F Feels 46°F |
61% | 5.4 NW | 30.09 inHg | 38.2°F | 0% |
8 PM Clear UV Index: 0 |
47°F Feels 44°F |
63% | 5.6 NW | 30.1 inHg | 33.7°F | 0% |
9 PM Clear UV Index: 0 |
45°F Feels 43°F |
64% | 5.8 NW | 30.11 inHg | 33.6°F | 0% |
10 PM Clear UV Index: 0 |
44°F Feels 41°F |
66% | 6.5 NNW | 30.11 inHg | 33.5°F | 0% |
11 PM Clear UV Index: 0 |
43°F Feels 39°F |
69% | 5.8 NNW | 30.12 inHg | 33.6°F | 0% |
Friday
Sunny. Highs in the mid 50s. Northwest winds 10 to 15 mph with gusts up to 25 mph.
Friday Night
Mostly clear. Areas of frost after midnight. Lows in the lower 30s. Northwest winds around 5 mph.
| Sat, Nov 23rd | Temp | Humidity | Wind (mph) | Pressure | Dew Point | Precip. |
|---|---|---|---|---|---|---|
12 AM Clear UV Index: 0 |
42°F Feels 37°F |
72% | 4.7 NNW | 30.12 inHg | 33.5°F | 0% |
1 AM Clear UV Index: 0 |
40°F Feels 36°F |
76% | 4.9 NW | 30.14 inHg | 33.3°F | 0% |
2 AM Clear UV Index: 0 |
39°F Feels 34°F |
82% | 4.5 NW | 30.14 inHg | 33.3°F | 0% |
3 AM Clear UV Index: 0 |
37°F Feels 33°F |
85% | 4.7 NW | 30.15 inHg | 33.3°F | 0% |
4 AM Partly Cloudy  UV Index: 0 |
37°F Feels 32°F |
88% | 4.3 NW | 30.15 inHg | 33.2°F | 0% |
5 AM Partly Cloudy UV Index: 0 |
36°F Feels 32°F |
93% | 4 NW | 30.17 inHg | 33.8°F | 0% |
6 AM Partly Cloudy UV Index: 0 |
36°F Feels 32°F |
95% | 4 NW | 30.18 inHg | 34.1°F | 0% |
7 AM Mist UV Index: 0 |
36°F Feels 33°F |
97% | 4.3 NW | 30.18 inHg | 34.4°F | 0% |
8 AM MistUV Index: 0.4 |
36°F Feels 33°F |
96% | 3.6 NNW | 30.2 inHg | 35.2°F | 0% |
9 AM MistUV Index: 1.3 |
37°F Feels 34°F |
96% | 4.7 NNW | 30.22 inHg | 35.6°F | 0% |
10 AM MistUV Index: 2.3 |
39°F Feels 37°F |
95% | 4.9 NNW | 30.23 inHg | 36°F | 0% |
11 AM MistUV Index: 3.1 |
41°F Feels 39°F |
87% | 5.4 NNW | 30.2 inHg | 36.9°F | 0% |
12 PM MistUV Index: 3.1 |
42°F Feels 42°F |
82% | 5.6 NNW | 30.19 inHg | 37.4°F | 0% |
1 PM Cloudy  UV Index: 2.7 |
46°F Feels 45°F |
78% | 5.6 NW | 30.17 inHg | 37.8°F | 0% |
2 PM Cloudy UV Index: 1.8 |
49°F Feels 48°F |
74% | 5.4 NW | 30.15 inHg | 41.2°F | 0% |
3 PM Cloudy UV Index: 0.9 |
51°F Feels 51°F |
73% | 5.4 NW | 30.14 inHg | 42.9°F | 0% |
4 PM SunnyUV Index: 0.2 |
51°F Feels 51°F |
71% | 4.7 NW | 30.13 inHg | 44.6°F | 0% |
5 PM Clear UV Index: 0 |
51°F Feels 51°F |
77% | 2.9 NW | 30.14 inHg | 44.4°F | 0% |
6 PM Clear UV Index: 0 |
50°F Feels 50°F |
81% | 2.2 WNW | 30.14 inHg | 44.4°F | 0% |
7 PM Clear UV Index: 0 |
47°F Feels 47°F |
84% | 2.2 WNW | 30.15 inHg | 44.3°F | 0% |
8 PM Clear UV Index: 0 |
45°F Feels 45°F |
89% | 1.6 WNW | 30.16 inHg | 41.3°F | 0% |
9 PM Clear UV Index: 0 |
42°F Feels 42°F |
91% | 1.6 WNW | 30.16 inHg | 39.8°F | 0% |
10 PM Clear UV Index: 0 |
45°F Feels 45°F |
93% | 1.3 SSW | 30.16 inHg | 38.3°F | 0% |
11 PM Overcast  UV Index: 0 |
41°F Feels 41°F |
70% | 1.3 WSW | 30.14 inHg | 37.7°F | 0% |
Saturday
Areas of frost in the morning. Sunny. Highs in the upper 50s. Northwest winds around 5 mph.
Saturday Night
Mostly clear. Patchy frost after midnight. Lows in the mid 30s. Light and variable winds.
| Sun, Nov 24th | Temp | Humidity | Wind (mph) | Pressure | Dew Point | Precip. |
|---|---|---|---|---|---|---|
12 AM Cloudy  UV Index: 0 |
39°F Feels 39°F |
97% | 1.8 WSW | 30.16 inHg | 36.9°F | 0% |
1 AM Fog UV Index: 0 |
37°F Feels 37°F |
98% | 1.8 SSW | 30.16 inHg | 36.4°F | 0% |
2 AM FogUV Index: 0 |
35°F Feels 35°F |
97% | 1.8 SW | 30.16 inHg | 33.3°F | 0% |
3 AM FogUV Index: 0 |
33°F Feels 33°F |
97% | 2.5 SW | 30.16 inHg | 31.7°F | 0% |
Currently
 |
39°F |
30.01in
Barometer 63%
Humidity Northwest 9.2mph Wind |
| Fair | ||
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