Groton, CT Weather Forecast
Local 7-day forecast
Slight Chance Rain Showers
Track current conditions, temperature changes, wind, and the full daily outlook for Groton, CT in one place.
A slight chance of rain showers. Mostly cloudy, with a high near 61.
Local Weather Overview
This forecast page for Groton, CT 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: Apr 10, 2026 4:40 PM EDT.
The active forecast window currently covers Apr 13 to Apr 16, 2026 for Groton, CT.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Apr 13 to Apr 16, 2026
- Latest sync
- Apr 10, 2026 4:40 PM EDT
- Forecast office
- OKX
- Source
- NOAA / NWS
Daily Outlook
This Week in Groton
Thursday looks like the warmest upcoming period in Groton at 71 degrees F.
Tuesday Night is the coolest period ahead with temperatures near 51 degrees F.
The strongest winds are forecast for Monday at about 8 to 13 mph SW.
Precipitation is mentioned in 7 upcoming forecast periods.
Forecast Details
- Last updated
- Apr 10, 2026 4:40 PM EDT
- Coverage
- 4 days
- Time zone
- America/New_York
- Forecast office
- OKX
- Radar station
- KOKX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
A slight chance of rain showers before 2am. Mostly cloudy, with a low around 53.
Mostly sunny, with a high near 69.
A slight chance of rain showers after 8pm. Mostly cloudy, with a low around 51.
A slight chance of rain showers before 8am. Partly sunny, with a high near 67.
A chance of rain showers after 8pm. Mostly cloudy, with a low around 54. Chance of precipitation is 30%.
A slight chance of rain showers before 8am. Partly sunny, with a high near 71.
A slight chance of rain showers after 2am. Mostly cloudy, with a low around 51.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Monday
Apr 13
|
Slight Chance Rain Showers
|
61°F |
8 to 13 mph
SW
|
|
Monday Night
Apr 13
|
Slight Chance Rain Showers
|
53°F |
6 to 10 mph
SW
|
|
Tuesday
Apr 14
|
Mostly Sunny
|
69°F |
7 mph
SW
|
|
Tuesday Night
Apr 14
|
Slight Chance Rain Showers
|
51°F |
7 mph
S
|
|
Wednesday
Apr 15
|
Slight Chance Rain Showers then Partly Sunny
|
67°F |
5 to 9 mph
S
|
|
Wednesday Night
Apr 15
|
Chance Rain Showers
|
54°F |
8 mph
SW
|
|
Thursday
Apr 16
|
Slight Chance Rain Showers then Partly Sunny
|
71°F |
6 to 9 mph
W
|
|
Thursday Night
Apr 16
|
Mostly Cloudy then Slight Chance Rain Showers
|
51°F |
3 to 7 mph
W
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Groton.