Chatham Seaplane Base (CYM) 15 Day Weather Forecast, Chatham United States
Current weather conditions and 15 day weather forecast for Chatham Seaplane Base in Chatham, 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 CYM
| 05 December 2025 Fri 3.2 ° C ( 37.8°F )  Overcast |
Feels Like : 2.7 ° C / 36.9°F Humidity : % 100 Pressure : 1012 mb Wind Speed : 3.6 kmph / 2.2 miles from SSW 
Visibility : 16 km Precipitation (rainfall) : 0 mm Cloud (%) : 100 |
15-day weather forecast for Chatham Seaplane Base, Chatham, United States
| Date | Weather forecast | Low temperature | High temperature | Average Temperature | Humidity | Wind | Chance of rain |
|---|---|---|---|---|---|---|---|
| 05 December 2025 Fri |  Patchy rain nearby |
0.2 ° C | 2.8 ° C | 1.5 ° C | % 95 | 5.8 km/h | 89% |
| 06 December 2025 Sat |  Heavy snow |
0.2 ° C | 1.1 ° C | 0.9 ° C | % 100 | 7.9 km/h | 89% |
| 07 December 2025 Sun | Heavy snow |
-1.1 ° C | 1.2 ° C | 0.4 ° C | % 99 | 10.1 km/h | 81% |
| 08 December 2025 Mon | Heavy snow |
-4.8 ° C | -1.6 ° C | -2.4 ° C | % 98 | 11.9 km/h | 76% |
| 09 December 2025 Tue | Heavy snow |
-6.7 ° C | -5 ° C | -4.7 ° C | % 97 | 11.5 km/h | 71% |
| 10 December 2025 Wed |  Moderate snow |
-11.1 ° C | -8.1 ° C | -8.7 ° C | % 96 | 8.3 km/h | 71% |
| 11 December 2025 Thu | Heavy snow |
-12.5 ° C | -9 ° C | -10.2 ° C | % 95 | 10.8 km/h | 87% |
| 12 December 2025 Fri | Overcast |
-16.2 ° C | -13.4 ° C | -14.7 ° C | % 89 | 14.8 km/h | 0% |
| 13 December 2025 Sat |  Sunny |
-20.6 ° C | -14.3 ° C | -17.4 ° C | % 89 | 13.7 km/h | 0% |
| 14 December 2025 Sun |  Freezing fog |
-21 ° C | -13.1 ° C | -17.6 ° C | % 95 | 7.6 km/h | 0% |
| 15 December 2025 Mon | Sunny |
-15.5 ° C | -11.8 ° C | -13.6 ° C | % 80 | 18.4 km/h | 0% |
| 16 December 2025 Tue | Sunny |
-12.9 ° C | -10.9 ° C | -11.8 ° C | % 65 | 28.4 km/h | 0% |
| 17 December 2025 Wed | Sunny |
-19.9 ° C | -12.8 ° C | -15.8 ° C | % 82 | 23 km/h | 0% |
| 18 December 2025 Thu | Overcast |
-18.6 ° C | -8.4 ° C | -14.6 ° C | % 83 | 2.9 km/h | 0% |
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