Grumman Airport (BPA) 15 Day Weather Forecast, Bethpage United States
Current weather conditions and 15 day weather forecast for Grumman Airport in Bethpage, 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 BPA
| 24 August 2026 Mon 17.8 ° C ( 64°F )  Clear |
Feels Like : 17.7 ° C / 63.9°F Humidity : % 86 Pressure : 1012 mb Wind Speed : 10.1 kmph / 6.3 miles from W 
Visibility : 10 km Precipitation (rainfall) : 0 mm Cloud (%) : 0 |
15-day weather forecast for Grumman Airport, Bethpage, United States
| Date | Weather forecast | Low temperature | High temperature | Average Temperature | Humidity | Wind | Chance of rain |
|---|---|---|---|---|---|---|---|
| 24 August 2026 Mon | Sunny |
17.4 ° C | 29.1 ° C | 22.9 ° C | % 63 | 20.9 km/h | 6% |
| 25 August 2026 Tue | Sunny |
20.3 ° C | 26.3 ° C | 23.3 ° C | % 48 | 17.3 km/h | 17% |
| 26 August 2026 Wed | Sunny |
19.7 ° C | 28.5 ° C | 23.7 ° C | % 51 | 18.7 km/h | 4% |
| 27 August 2026 Thu |  Overcast |
22.5 ° C | 28.2 ° C | 25 ° C | % 61 | 21.2 km/h | 57% |
| 28 August 2026 Fri | Overcast |
22.2 ° C | 28.7 ° C | 25.1 ° C | % 70 | 15.8 km/h | 75% |
| 29 August 2026 Sat | Overcast |
20.2 ° C | 27.6 ° C | 23.7 ° C | % 50 | 16.6 km/h | 7% |
| 30 August 2026 Sun | Overcast |
21.1 ° C | 26.6 ° C | 23.6 ° C | % 56 | 19.8 km/h | 39% |
| 31 August 2026 Mon |  Light rain shower |
21.7 ° C | 29.9 ° C | 25.6 ° C | % 70 | 14.4 km/h | 80% |
| 01 September 2026 Tue | Sunny |
20.5 ° C | 25.4 ° C | 22.6 ° C | % 73 | 13.3 km/h | 68% |
| 02 September 2026 Wed | Overcast |
20 ° C | 24.4 ° C | 22.1 ° C | % 69 | 18.7 km/h | 57% |
| 03 September 2026 Thu |  Moderate or heavy rain shower |
19.9 ° C | 25.4 ° C | 22 ° C | % 86 | 23.8 km/h | 90% |
| 04 September 2026 Fri | Overcast |
19.4 ° C | 27.4 ° C | 22.6 ° C | % 68 | 14.4 km/h | 12% |
| 05 September 2026 Sat | Overcast |
20.7 ° C | 26.2 ° C | 22.7 ° C | % 68 | 22.7 km/h | 73% |
| 06 September 2026 Sun | Moderate or heavy rain shower |
19 ° C | 20.8 ° C | 20.2 ° C | % 94 | 27 km/h | 93% |
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