Summit Airport (UMM) 15 Day Weather Forecast, Summit United States
Current weather conditions and 15 day weather forecast for Summit Airport in Summit, 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 UMM
| 20 December 2025 Sat -24.9 ° C ( -12.8°F )  Patchy light snow |
Feels Like : -32.9 ° C / -27.3°F Humidity : % 82 Pressure : 1013 mb Wind Speed : 9.7 kmph / 6 miles from NNE 
Visibility : 9.7 km Precipitation (rainfall) : 0.01 mm Cloud (%) : 100 |
15-day weather forecast for Summit Airport, Summit, United States
| Date | Weather forecast | Low temperature | High temperature | Average Temperature | Humidity | Wind | Chance of rain |
|---|---|---|---|---|---|---|---|
| 19 December 2025 Fri |  Freezing fog |
-31.7 ° C | -27.3 ° C | -27.8 ° C | % 99 | 10.1 km/h | 82% |
| 20 December 2025 Sat | Freezing fog |
-34.5 ° C | -31.4 ° C | -30.6 ° C | % 100 | 11.5 km/h | 85% |
| 21 December 2025 Sun |  Partly Cloudy |
-37.7 ° C | -35.7 ° C | -34.4 ° C | % 88 | 9.4 km/h | 0% |
| 22 December 2025 Mon |  Sunny |
-34.8 ° C | -31.6 ° C | -30.7 ° C | % 68 | 10.1 km/h | 0% |
| 23 December 2025 Tue | Sunny |
-30.2 ° C | -27.6 ° C | -26.2 ° C | % 81 | 10.4 km/h | 0% |
| 24 December 2025 Wed | Patchy light snow |
-25.3 ° C | -20.7 ° C | -20.2 ° C | % 89 | 5.8 km/h | 0% |
| 25 December 2025 Thu |  Overcast |
-19.6 ° C | -18 ° C | -16.7 ° C | % 88 | 9.4 km/h | 0% |
| 26 December 2025 Fri |  Heavy snow |
-24.8 ° C | -16.1 ° C | -19 ° C | % 97 | 18 km/h | 87% |
| 27 December 2025 Sat |  Light freezing rain |
-34.8 ° C | -32.9 ° C | -31.9 ° C | % 98 | 18.4 km/h | 0% |
| 28 December 2025 Sun | Freezing fog |
-39.3 ° C | -39 ° C | -37 ° C | % 99 | 13 km/h | 0% |
| 29 December 2025 Mon | Freezing fog |
-41 ° C | -37.2 ° C | -36.6 ° C | % 97 | 13.3 km/h | 0% |
| 30 December 2025 Tue |  Light snow |
-34.8 ° C | -25.7 ° C | -27.9 ° C | % 96 | 7.9 km/h | 71% |
| 31 December 2025 Wed | Light snow |
-30.5 ° C | -27.9 ° C | -27.4 ° C | % 98 | 12.2 km/h | 71% |
| 01 January 2026 Thu | Freezing fog |
-35.5 ° C | -33.1 ° C | -31.8 ° C | % 97 | 12.2 km/h | 0% |
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