Alton Airport (ALN) 15 Day Weather Forecast, Alton United States
Current weather conditions and 15 day weather forecast for Alton Airport in Alton, United States including weather daily high/low temperature, warnings, chance of precipitation, pressure, humidity/wind chill, rain, wind speed, cloud, pressure, and UV index.
Current weather conditions at ALN
| 13 November 2026 Fri 4.8 ° C ( 40.6°F )  Partly Cloudy |
Feels Like : 1 ° C / 33.8°F Humidity : % 54 Pressure : 1018 mb Wind Speed : 18 kmph / 11.2 miles from NNW 
Visibility : 10 km Precipitation (rainfall) : 0 mm Cloud (%) : 58 |
15-day weather forecast for Alton Airport, Alton, United States
| Date | Weather forecast | Low temperature | High temperature | Average Temperature | Humidity | Wind | Chance of rain |
|---|---|---|---|---|---|---|---|
| 12 November 2026 Thu | Partly Cloudy |
3.4 ° C | 9.5 ° C | 7.2 ° C | % 66 | 23.8 km/h | 17% |
| 13 November 2026 Fri | Partly Cloudy |
0.5 ° C | 6.2 ° C | 3.4 ° C | % 60 | 20.2 km/h | 6% |
| 14 November 2026 Sat |  Sunny |
-1.1 ° C | 8.2 ° C | 3.2 ° C | % 63 | 9.7 km/h | 4% |
| 15 November 2026 Sun | Sunny |
-0.4 ° C | 10.5 ° C | 4.5 ° C | % 61 | 6.8 km/h | 5% |
| 16 November 2026 Mon | Sunny |
0.7 ° C | 11.9 ° C | 5.7 ° C | % 64 | 8.3 km/h | 5% |
| 17 November 2026 Tue | Sunny |
1.5 ° C | 12.8 ° C | 6.5 ° C | % 68 | 11.2 km/h | 5% |
| 18 November 2026 Wed |  Overcast |
3.2 ° C | 14.2 ° C | 8.7 ° C | % 66 | 15.5 km/h | 10% |
| 19 November 2026 Thu | Partly Cloudy |
8.4 ° C | 16.5 ° C | 12.5 ° C | % 69 | 14.8 km/h | 21% |
| 20 November 2026 Fri | Partly Cloudy |
10.5 ° C | 18.5 ° C | 14.1 ° C | % 78 | 7.2 km/h | 51% |
| 21 November 2026 Sat |  Cloudy |
10.4 ° C | 18.3 ° C | 13.8 ° C | % 77 | 5.4 km/h | 17% |
| 22 November 2026 Sun | Overcast |
10.2 ° C | 18.1 ° C | 14.2 ° C | % 73 | 13.7 km/h | 14% |
| 23 November 2026 Mon |  Light rain |
12.1 ° C | 14 ° C | 12.9 ° C | % 86 | 15.8 km/h | 91% |
| 24 November 2026 Tue |  Light drizzle |
6.1 ° C | 12.3 ° C | 10 ° C | % 83 | 16.2 km/h | 87% |
| 25 November 2026 Wed | Partly Cloudy |
2.9 ° C | 8.4 ° C | 5.6 ° C | % 72 | 17.3 km/h | 42% |
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