Groton, NH Weather Forecast
Local 7-day forecast
Showers And Thunderstorms
Track current conditions, temperature changes, wind, and the full daily outlook for Groton, NH in one place.
Rain showers likely between 1am and 5am, then showers and thunderstorms. Cloudy, with a low around 66. Southeast wind around 5 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch possible.
Local Weather Overview
This forecast page for Groton, NH is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: Aug 3, 2026 2:26 AM EDT.
The active forecast window currently covers Aug 3 to Aug 9, 2026 for Groton, NH.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Aug 3 to Aug 9, 2026
- Latest sync
- Aug 3, 2026 2:26 AM EDT
- Forecast office
- GYX
- Source
- NOAA / NWS
Daily Outlook
This Week in Groton
Thursday looks like the warmest upcoming period in Groton at 86 degrees F.
Monday Night is the coolest period ahead with temperatures near 57 degrees F.
The strongest winds are forecast for Monday at about 5 to 10 mph S.
Precipitation is mentioned in 10 upcoming forecast periods.
Forecast Details
- Last updated
- Aug 3, 2026 2:26 AM EDT
- Coverage
- 7 days
- Time zone
- America/New_York
- Forecast office
- GYX
- Radar station
- KGYX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Showers and thunderstorms. Cloudy, with a high near 76. South wind 5 to 10 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
Showers and thunderstorms likely before 5am. Partly cloudy, with a low around 57. West wind 5 to 10 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch possible.
Sunny, with a high near 80. West wind 5 to 10 mph.
Mostly clear, with a low around 57. West wind 0 to 5 mph.
Mostly sunny, with a high near 83.
Partly cloudy, with a low around 60.
A slight chance of rain showers between 1pm and 2pm, then a chance of showers and thunderstorms. Mostly sunny, with a high near 86. Chance of precipitation is 40%.
A chance of showers and thunderstorms before 11pm, then a slight chance of showers and thunderstorms between 11pm and 3am. Mostly cloudy, with a low around 64. Chance of precipitation is 40%.
A slight chance of rain showers between noon and 2pm, then a chance of showers and thunderstorms. Mostly sunny, with a high near 85. Chance of precipitation is 40%.
A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 64. Chance of precipitation is 40%.
A chance of rain showers after 2pm. Mostly sunny, with a high near 85. Chance of precipitation is 30%.
A chance of rain showers before 10pm. Partly cloudy, with a low around 63. Chance of precipitation is 30%.
A slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 85.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Overnight
Aug 3
|
Showers And Thunderstorms
|
66°F |
5 mph
SE
|
|
Monday
Aug 3
|
Showers And Thunderstorms
|
76°F |
5 to 10 mph
S
|
|
Monday Night
Aug 3
|
Showers And Thunderstorms Likely
|
57°F |
5 to 10 mph
W
|
|
Tuesday
Aug 4
|
Sunny
|
80°F |
5 to 10 mph
W
|
|
Tuesday Night
Aug 4
|
Mostly Clear
|
57°F |
0 to 5 mph
W
|
|
Wednesday
Aug 5
|
Mostly Sunny
|
83°F |
0 to 5 mph
W
|
|
Wednesday Night
Aug 5
|
Partly Cloudy
|
60°F |
0 mph
|
|
Thursday
Aug 6
|
Mostly Sunny then Chance Showers And Thunderstorms
|
86°F |
0 to 5 mph
SW
|
|
Thursday Night
Aug 6
|
Chance Showers And Thunderstorms then Slight Chance Showers And Thunderstorms
|
64°F |
0 mph
|
|
Friday
Aug 7
|
Mostly Sunny then Chance Showers And Thunderstorms
|
85°F |
0 to 5 mph
W
|
|
Friday Night
Aug 7
|
Chance Showers And Thunderstorms then Partly Cloudy
|
64°F |
0 to 5 mph
W
|
|
Saturday
Aug 8
|
Mostly Sunny then Chance Rain Showers
|
85°F |
0 to 5 mph
W
|
|
Saturday Night
Aug 8
|
Chance Rain Showers then Partly Cloudy
|
63°F |
0 mph
|
|
Sunday
Aug 9
|
Mostly Sunny then Slight Chance Showers And Thunderstorms
|
85°F |
0 to 5 mph
W
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Groton.