Alton Hourly Forecast
Next 12 Hours
Overnight
Mostly cloudy with a 30 percent chance of rain showers. Near steady temperatures ranging from the mid 30s inland to the lower 40s along the Lake Ontario shore. North winds 10 mph or less.
Saturday
Mostly cloudy. Showers likely in the afternoon. Highs in the upper 40s. Northwest winds 5 to 10 mph, becoming west 10 to 15 mph with gusts up to 30 mph. Chance of rain 60 percent.
| Sat, Nov 23rd | Temp | Humidity | Wind (mph) | Pressure | Dew Point | Precip. |
|---|---|---|---|---|---|---|
4 AM Overcast  UV Index: 0 |
42°F Feels 36°F |
90% | 11.2 NNE | 29.62 inHg | 39.3°F | 0% |
5 AM Overcast UV Index: 0 |
42°F Feels 36°F |
90% | 11.2 NNE | 29.63 inHg | 39.4°F | 0% |
6 AM Overcast UV Index: 0 |
42°F Feels 36°F |
91% | 11.2 N | 29.64 inHg | 39.8°F | 0% |
7 AM Overcast UV Index: 0 |
42°F Feels 35°F |
93% | 11.9 NNW | 29.66 inHg | 39.9°F | 0% |
8 AM Overcast  UV Index: 0 |
42°F Feels 35°F |
91% | 13.4 NNW | 29.67 inHg | 39.2°F | 0% |
9 AM Overcast UV Index: 0.2 |
42°F Feels 35°F |
85% | 13.6 NW | 29.68 inHg | 37.5°F | 0% |
10 AM Cloudy  UV Index: 0.7 |
42°F Feels 35°F |
80% | 14.5 NW | 29.68 inHg | 36.4°F | 0% |
11 AM Overcast UV Index: 1.3 |
43°F Feels 35°F |
79% | 15.4 NW | 29.69 inHg | 36.9°F | 0% |
12 PM Overcast UV Index: 1.5 |
43°F Feels 36°F |
80% | 15.2 NW | 29.67 inHg | 37.3°F | 0% |
1 PM Overcast UV Index: 1.4 |
44°F Feels 36°F |
80% | 15.7 WNW | 29.66 inHg | 37.8°F | 0% |
2 PM Overcast UV Index: 1 |
44°F Feels 37°F |
82% | 16.3 WNW | 29.66 inHg | 38.8°F | 0% |
3 PM Overcast UV Index: 0.5 |
44°F Feels 38°F |
83% | 16.3 WNW | 29.66 inHg | 39.9°F | 0% |
Currently
 |
41°F |
29.59in
Barometer 86%
Humidity North 4.6mph Wind |
| Mostly Cloudy | ||
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