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Groton MA Weather - Partly Cloudy - 65°F
Partly Cloudy
65°F
Updated 6:22 am
Feels Like 64°F
Humidity 93%
Wind N 0 mph
Barometer  30.27 in
Dew Point 63°F
Groton MA Weather - Partly Cloudy - 18°C
Partly Cloudy
18°C
Updated 6:22 am
Feels Like 18°C
Humidity 93%
Wind N 0 km/h
Barometer  102.5 kPa
Dew Point 17°C
Groton, MA Weather and Current Conditionsgroton ma weather forecast

Groton, MA Weather Forecast

Groton Massachusetts WeatherGroton, Massachusetts Weather Weather Forecast
Here is the API 14 day weather forecast for Groton, Massachusetts. Note: The 7-day weather forecast for Groton, MA is the most reliable and accurate weather forecast. This template should only be used as a probable scenario. Forecasting weather beyond the next 7 days is a challenge.
Groton, MA Weather Forecast Dated: 622 AM Thu Sep 17 2026
Expect a cool pattern with a mix of sun and clouds and frequent chances of rain over the coming period. generally humid conditions and no major pressure swings will dominate.

Thursday, September 17, 2026

Mid-Morning
Groton Weather - 2026-09-17 - Morning - Partly Cloudy
69°F 21°C
Partly Cloudy
Mid-Afternoon
Groton Weather - 2026-09-17 - Afternoon - Overcast
75°F 24°C
Overcast
Early-Evening
Groton Weather - 2026-09-17 - Evening - Overcast
69°F 21°C
Overcast
Pleasant near 75°F 24°C, partly cloudy in the morning, becoming overcast through the afternoon and evening, with increasing humidity and barometric pressure falling.

Friday, September 18, 2026

Mid-Morning
Groton Weather - 2026-09-18 - Morning - Sunny
68°F 20°C
Sunny
Mid-Afternoon
Groton Weather - 2026-09-18 - Afternoon - Cloudy
76°F 25°C
Cloudy
Early-Evening
Groton Weather - 2026-09-18 - Evening - Overcast
63°F 18°C
Overcast
Comfortable with temperatures reaching 76°F 25°C, sunny in the morning, cloudy in the afternoon, and overcast this evening, with lower humidity and steady pressure. Winds turning from the NW to the NNW at 10 mph 16 km/h. Gusts up to 22 mph 36 km/h.

Saturday, September 19, 2026

Mid-Morning
Groton Weather - 2026-09-19 - Morning - Overcast
52°F 11°C
Overcast
Mid-Afternoon
Groton Weather - 2026-09-19 - Afternoon - Overcast
65°F 18°C
Overcast
Early-Evening
Groton Weather - 2026-09-19 - Evening - Overcast
56°F 13°C
Overcast
Comfortable at 65°F 18°C, overcast throughout the day, with steady humidity and steady pressure.

Sunday, September 20, 2026

Mid-Morning
Groton Weather - 2026-09-20 - Morning - Rain
53°F 11°C
Rain
Mid-Afternoon
Groton Weather - 2026-09-20 - Afternoon - Light Showers
60°F 16°C
Light Showers
Early-Evening
Groton Weather - 2026-09-20 - Evening - Light Rain
53°F 12°C
Light Rain
Cool with a high near 60°F 16°C, rounds of showers expected off and on all day, with steady humidity and barometric pressure falling. Winds switching from the SE to the NNW at 8 mph 13 km/h.

Monday, September 21, 2026

Mid-Morning
Groton Weather - 2026-09-21 - Morning - Sunny
51°F 11°C
Sunny
Mid-Afternoon
Groton Weather - 2026-09-21 - Afternoon - Overcast
63°F 17°C
Overcast
Early-Evening
Groton Weather - 2026-09-21 - Evening - Overcast
55°F 13°C
Overcast
Refreshing around 63°F 17°C, sunny in the morning, cloudy in the afternoon, and overcast this evening, with steady humidity and steady pressure.

Tuesday, September 22, 2026

Mid-Morning
Groton Weather - 2026-09-22 - Morning - Overcast
54°F 12°C
Overcast
Mid-Afternoon
Groton Weather - 2026-09-22 - Afternoon - Light Showers
49°F 9°C
Light Showers
Early-Evening
Groton Weather - 2026-09-22 - Evening - Light Showers
48°F 9°C
Light Showers
Cool and brisk at 49°F 9°C, dry early, with showers continuing through afternoon and evening, with increasing humidity and steady pressure.

Wednesday, September 23, 2026

Mid-Morning
Groton Weather - 2026-09-23 - Morning - Light Showers
51°F 11°C
Light Showers
Mid-Afternoon
Groton Weather - 2026-09-23 - Afternoon - Light Showers
55°F 13°C
Light Showers
Early-Evening
Groton Weather - 2026-09-23 - Evening - Light Showers
57°F 14°C
Light Showers
Chilly near 55°F 13°C, rounds of showers expected off and on all day, with steady humidity and barometric pressure falling.

Thursday, September 24, 2026

Mid-Morning
Groton Weather - 2026-09-24 - Morning - Light Showers
59°F 15°C
Light Showers
Mid-Afternoon
Groton Weather - 2026-09-24 - Afternoon - Fog
61°F 16°C
Fog
Early-Evening
Groton Weather - 2026-09-24 - Evening - Fog
61°F 16°C
Fog
Cool with a high near 61°F 16°C, scattered morning showers before drying out later, with steady humidity and barometric pressure falling.

Friday, September 25, 2026

Mid-Morning
Groton Weather - 2026-09-25 - Morning - Sunny
59°F 15°C
Sunny
Mid-Afternoon
Groton Weather - 2026-09-25 - Afternoon - Sunny
67°F 19°C
Sunny
Early-Evening
Groton Weather - 2026-09-25 - Evening - Sunny
57°F 14°C
Sunny
Refreshing around 67°F 19°C, sunny in the morning, partly cloudy in the afternoon, and sunny this evening, with lower humidity and barometric pressure rising. Winds W at 13 mph 21 km/h. Gusts up to 23 mph 37 km/h.

Saturday, September 26, 2026

Mid-Morning
Groton Weather - 2026-09-26 - Morning - Sunny
49°F 9°C
Sunny
Mid-Afternoon
Groton Weather - 2026-09-26 - Afternoon - Sunny
59°F 15°C
Sunny
Early-Evening
Groton Weather - 2026-09-26 - Evening - Sunny
50°F 10°C
Sunny
Mildly cool near 59°F 15°C, sunny in the morning, partly cloudy in the afternoon, and sunny this evening, with steady humidity and steady pressure. Winds out of the NW at 11 mph 17 km/h.

Sunday, September 27, 2026

Mid-Morning
Groton Weather - 2026-09-27 - Morning - Sunny
54°F 12°C
Sunny
Mid-Afternoon
Groton Weather - 2026-09-27 - Afternoon - Sunny
68°F 20°C
Sunny
Early-Evening
Groton Weather - 2026-09-27 - Evening - Sunny
60°F 16°C
Sunny
Pleasant near 68°F 20°C, sunny throughout the day, with increasing humidity and steady pressure.

Monday, September 28, 2026

Mid-Morning
Groton Weather - 2026-09-28 - Morning - Sunny
62°F 16°C
Sunny
Mid-Afternoon
Groton Weather - 2026-09-28 - Afternoon - Sunny
76°F 25°C
Sunny
Early-Evening
Groton Weather - 2026-09-28 - Evening - Sunny
66°F 19°C
Sunny
Comfortable with temperatures reaching 76°F 25°C, sunny throughout the day, with steady humidity and steady pressure.

Tuesday, September 29, 2026

Mid-Morning
Groton Weather - 2026-09-29 - Morning - Sunny
66°F 19°C
Sunny
Mid-Afternoon
Groton Weather - 2026-09-29 - Afternoon - Overcast
78°F 26°C
Overcast
Early-Evening
Groton Weather - 2026-09-29 - Evening - Overcast
67°F 20°C
Overcast
Enjoyable around 78°F 26°C, partly cloudy through the afternoon, turning overcast this evening, with steady humidity and steady pressure.

Wednesday, September 30, 2026

Mid-Morning
Groton Weather - 2026-09-30 - Morning - Overcast
66°F 19°C
Overcast
Mid-Afternoon
Groton Weather - 2026-09-30 - Afternoon - Partly Cloudy
70°F 21°C
Partly Cloudy
Early-Evening
Groton Weather - 2026-09-30 - Evening - Partly Cloudy
63°F 17°C
Partly Cloudy
Mild temperatures up to 70°F 21°C, overcast in the morning, cloudy in the afternoon, and partly cloudy this evening, with steady humidity and steady pressure. Winds shifting from the W to the NNW at 8 mph 13 km/h. Gusts up to 21 mph 32 km/h.

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Weather by the Numbers

Thu, 17th
Groton MA Weather - Thursday, Sep 17, 2026 - Overcast
Hi: 79°F 26°C
Lo: 62°F 17°C
Sunrise 06:28 AM
Sunset 06:52 PM
Wind S 3 mph4 km/h
Dew Point 62°F17°C
uv Index 5
Barometric Pressure 30.21 in1023 mb
POP 14% *
Humidity 58%
Fri, 18th
Groton MA Weather - Friday, Sep 18, 2026 - Overcast
Hi: 77°F 25°C
Lo: 55°F 13°C
Sunrise 06:29 AM
Sunset 06:51 PM
Wind NNW 11 mph17 km/h
Dew Point 53°F12°C
uv Index 6
Barometric Pressure 30.03 in1017 mb
POP 10% *
Humidity 45%
Sat, 19th
Groton MA Weather - Saturday, Sep 19, 2026 - Overcast
Hi: 65°F 18°C
Lo: 44°F 7°C
Sunrise 06:30 AM
Sunset 06:49 PM
Wind E 4 mph6 km/h
Dew Point 33°F1°C
uv Index 5
Barometric Pressure 30.27 in1025 mb
POP 10% *
Humidity 35%
Sun, 20th
Groton MA Weather - Sunday, Sep 20, 2026 - Light Rain
Hi: 60°F 16°C
Lo: 49°F 10°C
Sunrise 06:31 AM
Sunset 06:47 PM
Wind SSE 7 mph12 km/h
Dew Point 55°F13°C
uv Index 0
Barometric Pressure 30 in1016 mb
POP 83% *
Humidity 99%
Mon, 21st
Groton MA Weather - Monday, Sep 21, 2026 - Sunny
Hi: 64°F 18°C
Lo: 45°F 7°C
Sunrise 06:32 AM
Sunset 06:45 PM
Wind N 6 mph10 km/h
Dew Point 43°F6°C
uv Index 5
Barometric Pressure 30.15 in1021 mb
POP 2% *
Humidity 49%
Tue, 22nd
Groton MA Weather - Tuesday, Sep 22, 2026 - Light Rain Shower
Hi: 55°F 13°C
Lo: 47°F 8°C
Sunrise 06:34 AM
Sunset 06:43 PM
Wind NE 7 mph12 km/h
Dew Point 46°F8°C
uv Index 3
Barometric Pressure 30.36 in1028 mb
POP 36% *
Humidity 77%
Wed, 23rd
Groton MA Weather - Wednesday, Sep 23, 2026 - Light Rain Shower
Hi: 57°F 14°C
Lo: 49°F 10°C
Sunrise 06:35 AM
Sunset 06:42 PM
Wind ENE 7 mph11 km/h
Dew Point 53°F12°C
uv Index 3
Barometric Pressure 30.27 in1025 mb
POP 82% *
Humidity 99%
Thu, 24th
Groton MA Weather - Thursday, Sep 24, 2026 - Fog
Hi: 62°F 17°C
Lo: 57°F 14°C
Sunrise 06:36 AM
Sunset 06:40 PM
Wind ESE 3 mph4 km/h
Dew Point 59°F15°C
uv Index 4
Barometric Pressure 29.88 in1012 mb
POP 73% *
Humidity 99%
Fri, 25th
Groton MA Weather - Friday, Sep 25, 2026 - Partly Cloudy
Hi: 68°F 20°C
Lo: 50°F 10°C
Sunrise 06:37 AM
Sunset 06:38 PM
Wind W 13 mph20 km/h
Dew Point 46°F8°C
uv Index 5
Barometric Pressure 29.59 in1002 mb
POP 2% *
Humidity 48%
Sat, 26th
Groton MA Weather - Saturday, Sep 26, 2026 - Cloudy
Hi: 60°F 15°C
Lo: 44°F 6°C
Sunrise 06:38 AM
Sunset 06:36 PM
Wind NW 11 mph18 km/h
Dew Point 34°F1°C
uv Index 3
Barometric Pressure 29.97 in1015 mb
POP 2% *
Humidity 42%
Sun, 27th
Groton MA Weather - Sunday, Sep 27, 2026 - Sunny
Hi: 69°F 20°C
Lo: 44°F 7°C
Sunrise 06:39 AM
Sunset 06:34 PM
Wind NW 7 mph12 km/h
Dew Point 44°F7°C
uv Index 5
Barometric Pressure 30.12 in1020 mb
POP 1% *
Humidity 47%
Mon, 28th
Groton MA Weather - Monday, Sep 28, 2026 - Sunny
Hi: 77°F 25°C
Lo: 52°F 11°C
Sunrise 06:40 AM
Sunset 06:33 PM
Wind WSW 6 mph10 km/h
Dew Point 51°F10°C
uv Index 6
Barometric Pressure 30.06 in1018 mb
POP 1% *
Humidity 46%
Tue, 29th
Groton MA Weather - Tuesday, Sep 29, 2026 - Sunny
Hi: 80°F 26°C
Lo: 58°F 15°C
Sunrise 06:41 AM
Sunset 06:31 PM
Wind W 6 mph10 km/h
Dew Point 52°F11°C
uv Index 6
Barometric Pressure 29.97 in1015 mb
POP 1% *
Humidity 43%
Wed, 30th
Groton MA Weather - Wednesday, Sep 30, 2026 - Partly Cloudy
Hi: 72°F 22°C
Lo: 55°F 13°C
Sunrise 06:42 AM
Sunset 06:29 PM
Wind WNW 9 mph14 km/h
Dew Point 55°F13°C
uv Index 6
Barometric Pressure 29.88 in1012 mb
POP 11% *
Humidity 56%
* POP = Probability of Precipitation. Data for 12:00 PM.