As of 07:17 EDT

Weather in Groton, NH

42°Current weather

Groton, Wednesday, 14 October, 07:17

Overcast. Feels like 42°. High 58°, low 42°.

Pressure29.74 inHg
Wind0 mph N
Humidity96%
Visibility0.3 mi
Dew point43°

Monthly outlook for Groton, NH: average high 48.8°, average low 35.1°. That is 2.3° below the climate normal for October. Precipitation is expected on 5 days (about 1.7 inches), against a normal of 6 days and 2.2 inches. The warmest day looks like 19 October (62.4°), the coolest 18 October (27.8°).

48.8°/35.1°
Average high / low
−2.3°
Below normal
5 / 6
Wet days / normal
1.7 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
14 October – 23 October54.5°54.2°+0.2°
24 October – 2 November39.3°50.4°-6.2°
3 November – 12 Novemberat normal46.4°—

October records over 66 years

80.4°5 October 2025All-time high
20.3°24 October 1969All-time low

Climate normals and records are computed from the nearest reference point — Wentworth (9 mi).

Thu, 1549° / 42°0Overcast
49 °Overcast

Groton, Thursday, 15 October

Overcast. High 49°, low 42°.

Pressure30.24 inHg
Wind9 mph NW
Humidity53%
Visibility6.2 mi
Dew point31°
Fri, 1661° / 42°0.49Rain
61 °Rain

Groton, Friday, 16 October

Rain. High 61°, low 42°.

Pressure29.80 inHg
Wind11.8 mph SE
Humidity99%
Visibility2.3 mi
Dew point43°
Sat, 1748° / 34°0.04Snow
48 °Snow

Groton, Saturday, 17 October

Snow. High 48°, low 34°.

Pressure30.03 inHg
Wind15.2 mph NW
Humidity72%
Visibility4.1 mi
Dew point27°
Sun, 1848° / 28°0Clear
48 °Clear

Groton, Sunday, 18 October

Clear. High 48°, low 28°.

Pressure30.56 inHg
Wind7.6 mph NW
Humidity65%
Visibility—
Dew point28°
Mon, 1962° / 37°0Clear
62 °Clear

Groton, Monday, 19 October

Clear. High 62°, low 37°.

Pressure30.50 inHg
Wind5.7 mph W
Humidity41%
Visibility—
Dew point30°
Tue, 2061° / 41°0Overcast
61 °Overcast

Groton, Tuesday, 20 October

Overcast. High 61°, low 41°.

Pressure30.24 inHg
Wind8.6 mph W
Humidity64%
Visibility—
Dew point42°
Wed, 2158° / 37°0Overcast
58 °Overcast

Groton, Wednesday, 21 October

Overcast. High 58°, low 37°.

Pressure30.21 inHg
Wind3.7 mph W
Humidity41%
Visibility—
Dew point29°
Thu, 2260° / 38°0.33Rain
60 °Rain

Groton, Thursday, 22 October

Rain. High 60°, low 38°.

Pressure29.85 inHg
Wind12.5 mph W
Humidity70%
Visibility—
Dew point43°
Fri, 2338° / 33°0.03Snow
38 °Snow

Groton, Friday, 23 October

Snow. High 38°, low 33°.

Pressure29.83 inHg
Wind11 mph NW
Humidity84%
Visibility—
Dew point32°
Sat, 2437° / 33°0.65Snow
37 °Snow

Groton, Saturday, 24 October

Snow. High 37°, low 33°.

Pressure29.62 inHg
Wind13.6 mph NW
Humidity96%
Visibility—
Dew point33°
Sun, 2541° / 31°0Overcast
41 °Overcast

Groton, Sunday, 25 October

Overcast. High 41°, low 31°.

Pressure29.71 inHg
Wind10.7 mph NW
Humidity94%
Visibility—
Dew point35°
Mon, 2640° / 29°0.07Snow
40 °Snow

Groton, Monday, 26 October

Snow. High 40°, low 29°.

Pressure29.62 inHg
Wind12.5 mph W
Humidity98%
Visibility—
Dew point35°
Tue, 2740° / 32°0.01Light rain
40 °Light rain

Groton, Tuesday, 27 October

Light rain. High 40°, low 32°.

Pressure29.80 inHg
Wind8.8 mph W
Humidity79%
Visibility—
Dew point32°
Wed, 2839° / 30°0Light rain
39 °Light rain

Groton, Wednesday, 28 October

Light rain. High 39°, low 30°.

Pressure29.74 inHg
Wind7.7 mph NW
Humidity70%
Visibility—
Dew point29°
Thu, 2939° / 32°0.01Light rain
39 °Light rain

Groton, Thursday, 29 October

Light rain. High 39°, low 32°.

Pressure29.77 inHg
Wind8.7 mph NW
Humidity90%
Visibility—
Dew point32°
From day 17 onward the outlook is built from 60-year climate statistics
Fri, 3048° / 35°0.14Climate normal
48 °Climate normal

Groton, Friday, 30 October

Climate normal for this date — 60-year average.

Average high48°
Average low35°
Average precipitation0.14 in
Chance of precipitation25%
Record high66° (1989)
Record low25° (1962)
Sat, 3150° / 35°0.09Climate normal
50 °Climate normal

Groton, Saturday, 31 October

Climate normal for this date — 60-year average.

Average high50°
Average low35°
Average precipitation0.09 in
Chance of precipitation25%
Record high72° (2024)
Record low22° (2020)
Sun, 0150° / 37°0.1Climate normal
50 °Climate normal

Groton, Sunday, 1 November

Climate normal for this date — 60-year average.

Average high50°
Average low37°
Average precipitation0.1 in
Chance of precipitation32%
Record high68° (1974)
Record low25° (1965)
Mon, 0249° / 36°0.11Climate normal
49 °Climate normal

Groton, Monday, 2 November

Climate normal for this date — 60-year average.

Average high49°
Average low36°
Average precipitation0.11 in
Chance of precipitation37%
Record high66° (2001)
Record low19° (2002)
Tue, 0349° / 35°0.15Climate normal
49 °Climate normal

Groton, Tuesday, 3 November

Climate normal for this date — 60-year average.

Average high49°
Average low35°
Average precipitation0.15 in
Chance of precipitation43%
Record high66° (1990)
Record low16° (2002)
Wed, 0448° / 35°0.09Climate normal
48 °Climate normal

Groton, Wednesday, 4 November

Climate normal for this date — 60-year average.

Average high48°
Average low35°
Average precipitation0.09 in
Chance of precipitation27%
Record high67° (1987)
Record low21° (2020)
Thu, 0548° / 35°0.13Climate normal
48 °Climate normal

Groton, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high48°
Average low35°
Average precipitation0.13 in
Chance of precipitation35%
Record high71° (2022)
Record low23° (1965)
Fri, 0647° / 36°0.12Climate normal
47 °Climate normal

Groton, Friday, 6 November

Climate normal for this date — 60-year average.

Average high47°
Average low36°
Average precipitation0.12 in
Chance of precipitation35%
Record high70° (2024)
Record low23° (1962)
Sat, 0747° / 34°0.06Climate normal
47 °Climate normal

Groton, Saturday, 7 November

Climate normal for this date — 60-year average.

Average high47°
Average low34°
Average precipitation0.06 in
Chance of precipitation28%
Record high66° (1975)
Record low11° (2002)
Sun, 0845° / 33°0.09Climate normal
45 °Climate normal

Groton, Sunday, 8 November

Climate normal for this date — 60-year average.

Average high45°
Average low33°
Average precipitation0.09 in
Chance of precipitation28%
Record high67° (2020)
Record low10° (2002)
Mon, 0946° / 33°0.12Climate normal
46 °Climate normal

Groton, Monday, 9 November

Climate normal for this date — 60-year average.

Average high46°
Average low33°
Average precipitation0.12 in
Chance of precipitation33%
Record high65° (2020)
Record low17° (1971)
Tue, 1046° / 33°0.12Climate normal
46 °Climate normal

Groton, Tuesday, 10 November

Climate normal for this date — 60-year average.

Average high46°
Average low33°
Average precipitation0.12 in
Chance of precipitation38%
Record high67° (2020)
Record low17° (2017)
Wed, 1145° / 33°0.15Climate normal
45 °Climate normal

Groton, Wednesday, 11 November

Climate normal for this date — 60-year average.

Average high45°
Average low33°
Average precipitation0.15 in
Chance of precipitation42%
Record high67° (2022)
Record low13° (2017)
Thu, 1244° / 31°0.15Climate normal
44 °Climate normal

Groton, Thursday, 12 November

Climate normal for this date — 60-year average.

Average high44°
Average low31°
Average precipitation0.15 in
Chance of precipitation40%
Record high64° (2022)
Record low12° (2018)

About the monthly outlook

How accurate is a 30-day forecast?

The first 16 days come from weather models — reliable for the first 3–5 days and progressively less so after that. Days 17 through 30 for Groton, NH are built from the climate normal, the 60-year average, so they show typical weather for those dates rather than a specific forecast.

What does "above normal" mean?

We compare the forecast against the climate normal for those exact calendar days, computed from 60 years of observations. The deviation shows how much the coming month differs from a typical one.

Where do the 66-year records come from?

They are real temperature extremes recorded in Groton, NH since 1960: the highest and lowest reading for each calendar date, with the year it happened.

How often is it updated?

The forecast portion refreshes every hour; the climate portion is based on long-term data and stays stable.