Berlin, NH Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Berlin, a city in Coos County, New Hampshire.
Today
79°F
Sunny
Sunny, with a high near 79. West wind 10 to 15 mph, with gusts as high as 25 mph.
7-day forecast for Berlin
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 79°F | Sunny | 10 to 15 mph W | 0% |
| Tonight | 57°F | Mostly Clear | 0 to 5 mph W | 0% |
| Wednesday | 84°F | Mostly Sunny | 0 to 5 mph W | 0% |
| Wednesday Night | 63°F | Partly Cloudy | 0 to 5 mph W | 4% |
| Thursday | 86°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 0 mph | 30% |
| Thursday Night | 66°F | Chance Showers And Thunderstorms then Mostly Cloudy | 0 mph | 28% |
| Friday | 84°F | Slight Chance Rain Showers then Chance Showers And Thunderstorms | 0 to 5 mph NW | 54% |
| Friday Night | 63°F | Chance Showers And Thunderstorms | 0 mph | 51% |
| Saturday | 83°F | Chance Showers And Thunderstorms | 0 mph | 51% |
| Saturday Night | 63°F | Chance Showers And Thunderstorms then Mostly Cloudy | 0 mph | 45% |
| Sunday | 84°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 0 to 5 mph W | 17% |
| Sunday Night | 63°F | Slight Chance Showers And Thunderstorms | 0 to 5 mph SW | 18% |
| Monday | 82°F | Chance Showers And Thunderstorms | 0 to 10 mph W | 45% |
| Monday Night | 59°F | Chance Showers And Thunderstorms | 0 to 10 mph W | 44% |
Forecast source: National Weather Service (api.weather.gov) for Berlin (44.484, -71.277). Updated through the day.
Growing snapshot for Berlin
Last spring frost
May 14
First fall frost
Sep 30
Growing season
135 days
Hardiness zone
4b
More local growing data for Berlin: nearby ZIP 03570 weather · frost dates · planting calendar · New Hampshire frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Berlin, Nh (4 mi from Berlin). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.