As of 06:25 EDT

Weather in Alton, NH

46°Current weather

Alton, Tuesday, 13 October, 06:25

Overcast. Feels like 41°. High 55°, low 46°.

Pressure30.03 inHg
Wind10.4 mph NE
Humidity92%
Visibility3.0 mi
Dew point45°

Monthly outlook for Alton, NH: average high 56.2°, average low 42.1°. That is 1.9° above the climate normal for October. Precipitation is expected on 2 days (about 1.7 inches), against a normal of 5 days and 2.2 inches. The warmest day looks like 24 October (71.2°), the coolest 28 October (29.6°).

56.2°/42.1°
Average high / low
+1.9°
Above normal
2 / 5
Wet days / normal
1.7 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
13 October – 22 October56.4°53.9°+1.4°
23 October – 1 November55.7°50.1°+3.1°
2 November – 11 Novemberat normal46.5°—

October records over 66 years

79.2°6 October 2025All-time high
24.3°24 October 1969All-time low

Climate normals and records are computed from the nearest reference point — Gilford (8 mi).

Wed, 1466° / 48°0.02Light rain
66 °Light rain

Alton, Wednesday, 14 October

Light rain. High 66°, low 48°.

Pressure29.77 inHg
Wind12 mph W
Humidity68%
Visibility6.2 mi
Dew point57°
Thu, 1556° / 49°0Clear
56 °Clear

Alton, Thursday, 15 October

Clear. High 56°, low 49°.

Pressure30.21 inHg
Wind9.7 mph NW
Humidity52%
Visibility6.2 mi
Dew point35°
Fri, 1652° / 48°1.07Rain
52 °Rain

Alton, Friday, 16 October

Rain. High 52°, low 48°.

Pressure29.65 inHg
Wind11.4 mph SE
Humidity96%
Visibility1.4 mi
Dew point46°
Sat, 1744° / 39°0.02Light rain
44 °Light rain

Alton, Saturday, 17 October

Light rain. High 44°, low 39°.

Pressure29.88 inHg
Wind19.7 mph NW
Humidity66%
Visibility—
Dew point33°
Sun, 1854° / 36°0Mostly clear
54 °Mostly clear

Alton, Sunday, 18 October

Mostly clear. High 54°, low 36°.

Pressure30.33 inHg
Wind12.1 mph W
Humidity57%
Visibility—
Dew point31°
Mon, 1951° / 39°0Overcast
51 °Overcast

Alton, Monday, 19 October

Overcast. High 51°, low 39°.

Pressure30.56 inHg
Wind7.7 mph S
Humidity63%
Visibility—
Dew point32°
Tue, 2065° / 42°0Overcast
65 °Overcast

Alton, Tuesday, 20 October

Overcast. High 65°, low 42°.

Pressure30.39 inHg
Wind6 mph W
Humidity53%
Visibility—
Dew point40°
Wed, 2164° / 44°0Clear
64 °Clear

Alton, Wednesday, 21 October

Clear. High 64°, low 44°.

Pressure30.36 inHg
Wind5.5 mph NW
Humidity64%
Visibility—
Dew point45°
Thu, 2256° / 41°0Partly cloudy
56 °Partly cloudy

Alton, Thursday, 22 October

Partly cloudy. High 56°, low 41°.

Pressure30.39 inHg
Wind5 mph SW
Humidity64%
Visibility—
Dew point40°
Fri, 2361° / 42°0Overcast
61 °Overcast

Alton, Friday, 23 October

Overcast. High 61°, low 42°.

Pressure30.30 inHg
Wind6.9 mph SW
Humidity87%
Visibility—
Dew point45°
Sat, 2471° / 54°0Overcast
71 °Overcast

Alton, Saturday, 24 October

Overcast. High 71°, low 54°.

Pressure29.83 inHg
Wind15.9 mph NW
Humidity66%
Visibility—
Dew point54°
Sun, 2557° / 44°0Partly cloudy
57 °Partly cloudy

Alton, Sunday, 25 October

Partly cloudy. High 57°, low 44°.

Pressure29.91 inHg
Wind11.5 mph NW
Humidity56%
Visibility—
Dew point39°
Mon, 2649° / 39°0Partly cloudy
49 °Partly cloudy

Alton, Monday, 26 October

Partly cloudy. High 49°, low 39°.

Pressure29.88 inHg
Wind13.8 mph NW
Humidity53%
Visibility—
Dew point31°
Tue, 2744° / 33°0Overcast
44 °Overcast

Alton, Tuesday, 27 October

Overcast. High 44°, low 33°.

Pressure30.03 inHg
Wind13.2 mph NW
Humidity48%
Visibility—
Dew point23°
Wed, 2851° / 30°0Overcast
51 °Overcast

Alton, Wednesday, 28 October

Overcast. High 51°, low 30°.

Pressure29.88 inHg
Wind4.7 mph SW
Humidity50%
Visibility—
Dew point26°
From day 17 onward the outlook is built from 60-year climate statistics
Thu, 2949° / 37°0.11Climate normal
49 °Climate normal

Alton, Thursday, 29 October

Climate normal for this date — 60-year average.

Average high49°
Average low37°
Average precipitation0.11 in
Chance of precipitation27%
Record high65° (1971)
Record low26° (1965)
Fri, 3048° / 37°0.15Climate normal
48 °Climate normal

Alton, Friday, 30 October

Climate normal for this date — 60-year average.

Average high48°
Average low37°
Average precipitation0.15 in
Chance of precipitation25%
Record high64° (1989)
Record low28° (1962)
Sat, 3149° / 37°0.1Climate normal
49 °Climate normal

Alton, Saturday, 31 October

Climate normal for this date — 60-year average.

Average high49°
Average low37°
Average precipitation0.1 in
Chance of precipitation23%
Record high71° (2024)
Record low27° (1988)
Sun, 0149° / 38°0.11Climate normal
49 °Climate normal

Alton, Sunday, 1 November

Climate normal for this date — 60-year average.

Average high49°
Average low38°
Average precipitation0.11 in
Chance of precipitation27%
Record high67° (2024)
Record low27° (1965)
Mon, 0249° / 38°0.13Climate normal
49 °Climate normal

Alton, Monday, 2 November

Climate normal for this date — 60-year average.

Average high49°
Average low38°
Average precipitation0.13 in
Chance of precipitation35%
Record high61° (2001)
Record low22° (2002)
Tue, 0348° / 37°0.22Climate normal
48 °Climate normal

Alton, Tuesday, 3 November

Climate normal for this date — 60-year average.

Average high48°
Average low37°
Average precipitation0.22 in
Chance of precipitation40%
Record high63° (1982)
Record low21° (2002)
Wed, 0448° / 37°0.09Climate normal
48 °Climate normal

Alton, Wednesday, 4 November

Climate normal for this date — 60-year average.

Average high48°
Average low37°
Average precipitation0.09 in
Chance of precipitation23%
Record high64° (1994)
Record low27° (1965)
Thu, 0547° / 37°0.15Climate normal
47 °Climate normal

Alton, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high47°
Average low37°
Average precipitation0.15 in
Chance of precipitation35%
Record high69° (2022)
Record low24° (1965)
Fri, 0647° / 37°0.13Climate normal
47 °Climate normal

Alton, Friday, 6 November

Climate normal for this date — 60-year average.

Average high47°
Average low37°
Average precipitation0.13 in
Chance of precipitation37%
Record high71° (2024)
Record low26° (1987)
Sat, 0746° / 36°0.06Climate normal
46 °Climate normal

Alton, Saturday, 7 November

Climate normal for this date — 60-year average.

Average high46°
Average low36°
Average precipitation0.06 in
Chance of precipitation25%
Record high66° (2020)
Record low19° (2002)
Sun, 0845° / 34°0.09Climate normal
45 °Climate normal

Alton, Sunday, 8 November

Climate normal for this date — 60-year average.

Average high45°
Average low34°
Average precipitation0.09 in
Chance of precipitation30%
Record high66° (2020)
Record low20° (2002)
Mon, 0945° / 34°0.1Climate normal
45 °Climate normal

Alton, Monday, 9 November

Climate normal for this date — 60-year average.

Average high45°
Average low34°
Average precipitation0.1 in
Chance of precipitation30%
Record high65° (2020)
Record low19° (1971)
Tue, 1045° / 35°0.16Climate normal
45 °Climate normal

Alton, Tuesday, 10 November

Climate normal for this date — 60-year average.

Average high45°
Average low35°
Average precipitation0.16 in
Chance of precipitation37%
Record high67° (2020)
Record low20° (2017)
Wed, 1144° / 34°0.14Climate normal
44 °Climate normal

Alton, Wednesday, 11 November

Climate normal for this date — 60-year average.

Average high44°
Average low34°
Average precipitation0.14 in
Chance of precipitation45%
Record high68° (2020)
Record low19° (2017)

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 Alton, 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 Alton, 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.