Montgomery County Airport (GAI) 15 Day Weather Forecast, Gaithersburg United States
Current weather conditions and 15 day weather forecast for Montgomery County Airport in Gaithersburg, 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 GAI
| 18 December 2025 Thu 6.2 ° C ( 43.2°F )  Clear |
Feels Like : 4.4 ° C / 39.9°F Humidity : % 56 Pressure : 1020 mb Wind Speed : 8.6 kmph / 5.4 miles from NNW 
Visibility : 16 km Precipitation (rainfall) : 0 mm Cloud (%) : 0 |
15-day weather forecast for Montgomery County Airport, Gaithersburg, United States
| Date | Weather forecast | Low temperature | High temperature | Average Temperature | Humidity | Wind | Chance of rain |
|---|---|---|---|---|---|---|---|
| 17 December 2025 Wed | Sunny |
-3.3 ° C | 16.1 ° C | 3.8 ° C | % 59 | 11.5 km/h | 0% |
| 18 December 2025 Thu |  Moderate rain |
-0.4 ° C | 4.4 ° C | 2.6 ° C | % 88 | 22.7 km/h | 87% |
| 19 December 2025 Fri |  Heavy rain |
-2.9 ° C | 11 ° C | 6.8 ° C | % 82 | 36 km/h | 88% |
| 20 December 2025 Sat | Sunny |
-4.2 ° C | 1.8 ° C | -1.2 ° C | % 64 | 25.9 km/h | 0% |
| 21 December 2025 Sun | Sunny |
-1.1 ° C | 8.2 ° C | 3.7 ° C | % 54 | 26.3 km/h | 0% |
| 22 December 2025 Mon |  Partly Cloudy |
-3.8 ° C | 1.1 ° C | -2.4 ° C | % 54 | 18.4 km/h | 0% |
| 23 December 2025 Tue |  Overcast |
-3.4 ° C | 2.2 ° C | -0.6 ° C | % 59 | 14.4 km/h | 0% |
| 24 December 2025 Wed | Partly Cloudy |
0.8 ° C | 7.8 ° C | 4 ° C | % 75 | 17.6 km/h | 0% |
| 25 December 2025 Thu |  Patchy rain nearby |
1 ° C | 3.8 ° C | 2.5 ° C | % 82 | 6.8 km/h | 88% |
| 26 December 2025 Fri | Overcast |
-0.2 ° C | 2.7 ° C | 1.7 ° C | % 83 | 15.1 km/h | 0% |
| 27 December 2025 Sat | Patchy rain nearby |
5.8 ° C | 15.9 ° C | 10.2 ° C | % 86 | 23.4 km/h | 0% |
| 28 December 2025 Sun | Sunny |
-1.6 ° C | 5.9 ° C | 3.5 ° C | % 57 | 26.3 km/h | 0% |
| 29 December 2025 Mon | Sunny |
-3.8 ° C | 1.3 ° C | -1.6 ° C | % 42 | 20.2 km/h | 0% |
| 30 December 2025 Tue |  Moderate or heavy snow showers |
-1.1 ° C | 3.9 ° C | 0.7 ° C | % 59 | 19.4 km/h | 78% |
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