Yes

you do need a jacket based on the weather in Bow, NH 03304, USA 1 second ago

Why? Because just cool enough for a jacket, but not warm enough to ditch it!
58°F14°C & Mostly Cloudy

Wind is 3 mph5 km/h from the South, gusting to 7 mph12 km/h
September 23
2am57°F14°C3 mph6 km/h SouthPartly Cloudy
3am57°F14°C3 mph5 km/h SouthMostly Clear
4am56°F13°C3 mph5 km/h SouthMostly Clear
5am56°F13°C3 mph4 km/h SouthMostly Clear
6am55°F13°C3 mph4 km/h SouthMostly Clear
7am56°F13°C3 mph4 km/h SouthwestPartly Cloudy
8am59°F15°C2 mph3 km/h SouthwestPartly Cloudy
9am64°F18°C3 mph4 km/h SouthwestPartly Cloudy
10am69°F21°C3 mph5 km/h SouthwestMostly Cloudy
11am72°F22°C3 mph6 km/h SouthwestMostly Cloudy
12pm75°F24°C4 mph6 km/h SouthwestMostly Cloudy
1pm77°F25°C4 mph6 km/h WestMostly Cloudy
DateLowHighWindDayNight
September 2355°F13°C77°F25°C3 mph5 km/h from WestRainRain
September 2459°F15°C67°F19°C6 mph10 km/h from NortheastRainDrizzle
September 2558°F14°C66°F19°C4 mph7 km/h from EastRainRain
September 2661°F16°C74°F23°C6 mph10 km/h from NorthwestDrizzlePartly Cloudy
September 2757°F14°C74°F24°C3 mph5 km/h from SouthwestPartly CloudyPartly Cloudy
September 2857°F14°C76°F24°C8 mph13 km/h from WestMostly ClearMostly Clear
September 2953°F12°C69°F21°C7 mph11 km/h from WestPartly CloudyPartly Cloudy

Yes

Low of 58°F15°C, High of 67°F20°C
Wind: 6 mph10 km/h
Precipitation: 76% rain

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