Monthly outlook for Riverton, NH: average high 54.7°, average low 37.8°. That is 0.9° above the climate normal for October. Precipitation is expected on 5 days (about 0.9 inches), against a normal of 6 days and 2.0 inches. The warmest day looks like 16 October (64.7°), the coolest 19 October (25.1°).
54.7°/37.8°
Average high / low
+0.9°
Above normal
5 / 6
Wet days / normal
0.9 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
8 October – 17 October
56.6°
54.3°
+1.2°
18 October – 27 October
51.7°
50.3°
+0.8°
28 October – 6 November
at normal
46.5°
—
October records over 66 years
79.7°4 October 2023All-time high
10.6°30 October 1962All-time low
Climate normals and records are computed from the nearest reference point — Lunenburg (9 mi).
Fri, 0953° / 43°0.05
53 °
Riverton, Friday, 9 October
Light rain. High 53°, low 43°.
Pressure30.00 inHg
Wind12.8 mph W
Humidity69%
Visibility5.8 mi
Dew point41°
Sat, 1050° / 34°0
50 °
Riverton, Saturday, 10 October
Clear. High 50°, low 34°.
Pressure30.47 inHg
Wind7.9 mph NW
Humidity54%
Visibility6.2 mi
Dew point27°
Sun, 1161° / 34°0
61 °
Riverton, Sunday, 11 October
Overcast. High 61°, low 34°.
Pressure30.33 inHg
Wind7.8 mph SW
Humidity42%
Visibility6.2 mi
Dew point35°
Mon, 1262° / 45°0.21
62 °
Riverton, Monday, 12 October
Rain. High 62°, low 45°.
Pressure29.80 inHg
Wind2.1 mph NW
Humidity78%
Visibility6.2 mi
Dew point50°
Tue, 1360° / 41°0.3
60 °
Riverton, Tuesday, 13 October
Rain. High 60°, low 41°.
Pressure29.59 inHg
Wind11.3 mph NW
Humidity97%
Visibility—
Dew point53°
Wed, 1448° / 37°0.01
48 °
Riverton, Wednesday, 14 October
Light rain. High 48°, low 37°.
Pressure30.03 inHg
Wind11.7 mph NW
Humidity76%
Visibility—
Dew point33°
Thu, 1557° / 33°0
57 °
Riverton, Thursday, 15 October
Mostly clear. High 57°, low 33°.
Pressure30.24 inHg
Wind4.1 mph SW
Humidity44%
Visibility—
Dew point29°
Fri, 1665° / 51°0
65 °
Riverton, Friday, 16 October
Overcast. High 65°, low 51°.
Pressure29.94 inHg
Wind14.3 mph W
Humidity74%
Visibility—
Dew point50°
Sat, 1748° / 31°0.01
48 °
Riverton, Saturday, 17 October
Light snow. High 48°, low 31°.
Pressure29.94 inHg
Wind15.2 mph W
Humidity57%
Visibility—
Dew point27°
Sun, 1837° / 27°0.03
37 °
Riverton, Sunday, 18 October
Light snow. High 37°, low 27°.
Pressure30.24 inHg
Wind12.6 mph NW
Humidity63%
Visibility—
Dew point21°
Mon, 1947° / 25°0
47 °
Riverton, Monday, 19 October
Clear. High 47°, low 25°.
Pressure30.50 inHg
Wind7.1 mph SW
Humidity41%
Visibility—
Dew point16°
Tue, 2055° / 34°0
55 °
Riverton, Tuesday, 20 October
Partly cloudy. High 55°, low 34°.
Pressure30.36 inHg
Wind4.9 mph W
Humidity57%
Visibility—
Dew point33°
Wed, 2159° / 37°0
59 °
Riverton, Wednesday, 21 October
Overcast. High 59°, low 37°.
Pressure30.42 inHg
Wind4.1 mph S
Humidity60%
Visibility—
Dew point38°
Thu, 2259° / 43°0.02
59 °
Riverton, Thursday, 22 October
Light rain. High 59°, low 43°.
Pressure30.18 inHg
Wind7.7 mph SW
Humidity60%
Visibility—
Dew point41°
Fri, 2352° / 42°0.07
52 °
Riverton, Friday, 23 October
Light rain. High 52°, low 42°.
Pressure30.03 inHg
Wind6 mph W
Humidity83%
Visibility—
Dew point46°
From day 17 onward the outlook is built from 60-year climate statistics
Sat, 2451° / 35°0.11
51 °
Riverton, Saturday, 24 October
Climate normal for this date — 60-year average.
Average high51°
Average low35°
Average precipitation0.11 in
Chance of precipitation37%
Record high71° (1963)
Record low18° (1969)
Sun, 2549° / 35°0.15
49 °
Riverton, Sunday, 25 October
Climate normal for this date — 60-year average.
Average high49°
Average low35°
Average precipitation0.15 in
Chance of precipitation40%
Record high73° (1963)
Record low19° (1981)
Mon, 2649° / 35°0.13
49 °
Riverton, Monday, 26 October
Climate normal for this date — 60-year average.
Average high49°
Average low35°
Average precipitation0.13 in
Chance of precipitation37%
Record high71° (1963)
Record low21° (1997)
Tue, 2749° / 35°0.13
49 °
Riverton, Tuesday, 27 October
Climate normal for this date — 60-year average.
Average high49°
Average low35°
Average precipitation0.13 in
Chance of precipitation37%
Record high70° (2023)
Record low22° (1976)
Wed, 2848° / 33°0.17
48 °
Riverton, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high48°
Average low33°
Average precipitation0.17 in
Chance of precipitation45%
Record high69° (2023)
Record low21° (1976)
Thu, 2947° / 32°0.09
47 °
Riverton, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high47°
Average low32°
Average precipitation0.09 in
Chance of precipitation37%
Record high63° (1989)
Record low22° (1965)
Fri, 3046° / 32°0.11
46 °
Riverton, Friday, 30 October
Climate normal for this date — 60-year average.
Average high46°
Average low32°
Average precipitation0.11 in
Chance of precipitation25%
Record high65° (1989)
Record low11° (1962)
Sat, 3148° / 32°0.08
48 °
Riverton, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high48°
Average low32°
Average precipitation0.08 in
Chance of precipitation32%
Record high70° (2024)
Record low18° (2002)
Sun, 0148° / 33°0.11
48 °
Riverton, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high48°
Average low33°
Average precipitation0.11 in
Chance of precipitation43%
Record high64° (2024)
Record low22° (1965)
Mon, 0247° / 33°0.13
47 °
Riverton, Monday, 2 November
Climate normal for this date — 60-year average.
Average high47°
Average low33°
Average precipitation0.13 in
Chance of precipitation43%
Record high64° (2001)
Record low13° (2002)
Tue, 0347° / 33°0.17
47 °
Riverton, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high47°
Average low33°
Average precipitation0.17 in
Chance of precipitation52%
Record high64° (1982)
Record low10° (2002)
Wed, 0446° / 32°0.07
46 °
Riverton, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high46°
Average low32°
Average precipitation0.07 in
Chance of precipitation32%
Record high66° (1982)
Record low13° (2002)
Thu, 0545° / 32°0.16
45 °
Riverton, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high45°
Average low32°
Average precipitation0.16 in
Chance of precipitation45%
Record high68° (2022)
Record low18° (1986)
Fri, 0645° / 33°0.1
45 °
Riverton, Friday, 6 November
Climate normal for this date — 60-year average.
Average high45°
Average low33°
Average precipitation0.1 in
Chance of precipitation38%
Record high69° (2022)
Record low20° (1962)
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 Riverton, 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 Riverton, 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.