Manchester, NH Weather
Manchester hourly forecast: next 24 hours
Today's high of 82°F (28°C) is about 8°F (4°C) above the typical September high of 74°F (23°C).
Current conditions in detail
Manchester weather tomorrow (Thursday, September 17)
Tomorrow in Manchester looks light drizzle, with a high of 70° and an overnight low of 60°. There is a 85% chance of rain - plan accordingly. Winds top out near 4 mph, and the UV index reaches 5 (moderate).
Manchester 14-day forecast
About the weather in Manchester
Cold is the baseline in Manchester, not the exception. Night-time lows sit at or below freezing in 4 months of the year, and the warmest month, July, still only averages 84°F (29°C) by day. January runs to 18°F (-8°C) after dark.
Manchester weather: quick facts
- Hottest month: July - highs near 84°F (29°C)
- Coldest month: January - highs near 34°F (1°C)
- Decade extremes (2015-2024): 100°F (38°C) high · -19°F (-28°C) low
- Wettest month: December (11 rainy days) · Sunniest: July (11.2 h sun/day)
- Climate type: humid continental
- Annual swing: 26°C between the average warmest and coolest month · day to night: 10°C
- Snow: about 21 days a year
- Months with freezing average lows: 4
- Average humidity: 70%
Temperatures through the year
Three of the twelve months pair mild highs with fewer than twelve wet days; the longest unbroken run is May through June. January bottoms out at 34°F (1°C) in daylight, 18°F (-8°C) after dark. Warmth peaks in July: highs of 84°F (29°C), lows of 64°F (18°C). Overnight lows average at or below freezing for 4 months, December through March.
Rain, sun and snow
Snow falls on roughly 21 days a year, mostly November through April. December is the wettest month at 4.6 inches (116 mm) over 11 days; May is the driest. The gridded 2015-2024 daily record for this location tops out at 100°F (38°C) and bottoms at -19°F (-28°C) - decade extremes, not all-time station records.
Season by season
Spring (March through May)
Spring runs cool rather than cold here - highs near 56°F (13°C), nights near 37°F (3°C), and rain falls on around 32 of the 90 days, plus about 5 snowy days.
Summer (June through August)
Summer in Manchester brings hot afternoons, with daytime highs averaging 81°F (27°C) and nights around 62°F (16°C); rain falls on around 34 of the 90 days. Daylight is generous - around 10.9 hours of sun a day.
Fall (September through November)
Through fall, Manchester stays on the cool side of mild: 61°F (16°C) by day, 45°F (7°C) after dark, and expect showers on roughly 27 days across the season.
Winter (December through February)
Winter in Manchester brings deep cold, with daytime highs averaging 37°F (3°C) and nights around 20°F (-6°C); rain falls on around 31 of the 90 days, plus about 15 snowy days. Wind sharpens cold like this considerably; pair the forecast winds with the wind speed converter to judge exposed conditions.
Average temperatures in Manchester by month
| Month | High | Low | Rain days | Precipitation | Sunshine | Humidity |
|---|---|---|---|---|---|---|
| January | 34° | 18° | 10 | 3.7 in | 6.0 h/day | 68% |
| February | 37° | 18° | 10 | 3.0 in | 6.8 h/day | 69% |
| March | 44° | 26° | 10 | 3.7 in | 7.9 h/day | 66% |
| April | 55° | 36° | 12 | 4.0 in | 8.2 h/day | 68% |
| May | 69° | 48° | 10 | 2.7 in | 10.0 h/day | 67% |
| June | 78° | 57° | 11 | 3.6 in | 10.9 h/day | 68% |
| July | 84° | 64° | 11 | 4.3 in | 11.2 h/day | 70% |
| August | 82° | 63° | 11 | 3.8 in | 10.7 h/day | 73% |
| September | 74° | 56° | 9 | 3.8 in | 9.0 h/day | 75% |
| October | 62° | 45° | 9 | 4.4 in | 7.2 h/day | 77% |
| November | 48° | 33° | 9 | 3.1 in | 6.5 h/day | 72% |
| December | 39° | 25° | 11 | 4.6 in | 5.6 h/day | 73% |