Mountain Lakes, NH Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Mountain Lakes, a community in Grafton County, New Hampshire.
Today
81°F
Areas Of Fog then Sunny
Areas of fog before 8am. Sunny, with a high near 81. West wind 0 to 10 mph.
7-day forecast for Mountain Lakes
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 81°F | Areas Of Fog then Sunny | 0 to 10 mph W | 0% |
| Tonight | 59°F | Mostly Clear then Areas Of Fog | 0 mph | 0% |
| Wednesday | 84°F | Areas Of Fog then Mostly Sunny | 0 to 5 mph SW | 0% |
| Wednesday Night | 64°F | Partly Cloudy | 0 to 5 mph S | 6% |
| Thursday | 85°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 0 mph | 37% |
| Thursday Night | 67°F | Chance Showers And Thunderstorms then Mostly Cloudy | 0 mph | 34% |
| Friday | 85°F | Slight Chance Rain Showers then Chance Showers And Thunderstorms | 0 mph | 41% |
| Friday Night | 65°F | Chance Showers And Thunderstorms | 0 mph | 39% |
| Saturday | 84°F | Chance Showers And Thunderstorms | 0 mph | 49% |
| Saturday Night | 64°F | Chance Showers And Thunderstorms | 0 mph | 44% |
| Sunday | 85°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 0 to 5 mph SW | 17% |
| Sunday Night | 64°F | Slight Chance Showers And Thunderstorms | 0 mph | 22% |
| Monday | 84°F | Chance Showers And Thunderstorms | 0 to 5 mph SW | 48% |
| Monday Night | 61°F | Chance Showers And Thunderstorms | 0 to 5 mph W | 46% |
Forecast source: National Weather Service (api.weather.gov) for Mountain Lakes (44.125, -71.958). Updated through the day.
Growing snapshot for Mountain Lakes
Last spring frost
May 15
First fall frost
Sep 28
Growing season
133 days
Hardiness zone
5a
More local growing data for Mountain Lakes: nearby ZIP 03774 weather · frost dates · planting calendar · New Hampshire frost dates
Nearby towns & communities
Ashland
Bethlehem
Bristol
Canaan
Enfield
Lebanon
Lincoln
Lisbon
Littleton
North Haverhill
North Woodstock
Plymouth
Woodsville
Climate data from the nearest NOAA station, Benton 5 Sw, Nh (4.9 mi from Mountain Lakes). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.