Monthly outlook for Riverdale, NH: average high 56.8°, average low 38°. That is 0.5° above the climate normal for October. Precipitation is expected on 4 days (about 3.2 inches), against a normal of 5 days and 2.1 inches. The warmest day looks like 28 October (69.1°), the coolest 30 October (29.6°).
56.8°/38°
Average high / low
+0.5°
Above normal
4 / 5
Wet days / normal
3.2 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
19 October – 28 October
60.2°
56.9°
+1.8°
29 October – 7 November
51°
53.2°
-1.2°
8 November – 17 November
at normal
48.1°
—
October records over 66 years
84.7°5 October 2007All-time high
24.6°31 October 2020All-time low
Climate normals and records are computed from the nearest reference point — Bedford (9 mi).
Tue, 2063° / 35°0
63 °
Riverdale, Tuesday, 20 October
Clear. High 63°, low 35°.
Pressure30.30 inHg
Wind7.4 mph N
Humidity41%
Visibility6.2 mi
Dew point37°
Wed, 2156° / 35°0
56 °
Riverdale, Wednesday, 21 October
Clear. High 56°, low 35°.
Pressure30.33 inHg
Wind6.1 mph NE
Humidity49%
Visibility6.2 mi
Dew point33°
Thu, 2261° / 34°0
61 °
Riverdale, Thursday, 22 October
Clear. High 61°, low 34°.
Pressure29.91 inHg
Wind10 mph NW
Humidity44%
Visibility6.2 mi
Dew point35°
Fri, 2348° / 38°0
48 °
Riverdale, Friday, 23 October
Partly cloudy. High 48°, low 38°.
Pressure30.12 inHg
Wind16.1 mph NW
Humidity60%
Visibility—
Dew point31°
Sat, 2455° / 35°0
55 °
Riverdale, Saturday, 24 October
Clear. High 55°, low 35°.
Pressure30.39 inHg
Wind9.5 mph NW
Humidity53%
Visibility—
Dew point30°
Sun, 2563° / 39°0
63 °
Riverdale, Sunday, 25 October
Clear. High 63°, low 39°.
Pressure30.47 inHg
Wind6.2 mph NW
Humidity41%
Visibility—
Dew point32°
Mon, 2665° / 40°0
65 °
Riverdale, Monday, 26 October
Overcast. High 65°, low 40°.
Pressure30.24 inHg
Wind8.1 mph W
Humidity54%
Visibility—
Dew point37°
Tue, 2762° / 45°0
62 °
Riverdale, Tuesday, 27 October
Overcast. High 62°, low 45°.
Pressure30.30 inHg
Wind6.5 mph S
Humidity69%
Visibility—
Dew point45°
Wed, 2869° / 43°0.25
69 °
Riverdale, Wednesday, 28 October
Rain. High 69°, low 43°.
Pressure29.83 inHg
Wind13.7 mph NW
Humidity65%
Visibility—
Dew point51°
Thu, 2940° / 30°0
40 °
Riverdale, Thursday, 29 October
Mostly clear. High 40°, low 30°.
Pressure29.80 inHg
Wind15.6 mph NW
Humidity43%
Visibility—
Dew point16°
Fri, 3051° / 30°0
51 °
Riverdale, Friday, 30 October
Mostly clear. High 51°, low 30°.
Pressure30.06 inHg
Wind12.8 mph W
Humidity45%
Visibility—
Dew point24°
Sat, 3159° / 36°0
59 °
Riverdale, Saturday, 31 October
Partly cloudy. High 59°, low 36°.
Pressure30.18 inHg
Wind10.9 mph W
Humidity38%
Visibility—
Dew point27°
Sun, 0154° / 40°0.43
54 °
Riverdale, Sunday, 1 November
Rain. High 54°, low 40°.
Pressure30.42 inHg
Wind9.7 mph E
Humidity80%
Visibility—
Dew point42°
Mon, 0249° / 44°0.26
49 °
Riverdale, Monday, 2 November
Rain. High 49°, low 44°.
Pressure29.88 inHg
Wind8.6 mph NE
Humidity96%
Visibility—
Dew point46°
Tue, 0353° / 50°2.26
53 °
Riverdale, Tuesday, 3 November
Heavy rain. High 53°, low 50°.
Pressure29.44 inHg
Wind12 mph NE
Humidity98%
Visibility—
Dew point51°
From day 17 onward the outlook is built from 60-year climate statistics
Wed, 0453° / 39°0.07
53 °
Riverdale, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high53°
Average low39°
Average precipitation0.07 in
Chance of precipitation25%
Record high72° (1987)
Record low26° (2002)
Thu, 0553° / 39°0.16
53 °
Riverdale, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high53°
Average low39°
Average precipitation0.16 in
Chance of precipitation33%
Record high74° (2022)
Record low27° (1965)
Fri, 0651° / 39°0.13
51 °
Riverdale, Friday, 6 November
Climate normal for this date — 60-year average.
Average high51°
Average low39°
Average precipitation0.13 in
Chance of precipitation37%
Record high75° (2024)
Record low27° (2012)
Sat, 0751° / 37°0.05
51 °
Riverdale, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high51°
Average low37°
Average precipitation0.05 in
Chance of precipitation23%
Record high72° (2020)
Record low25° (2002)
Sun, 0850° / 37°0.1
50 °
Riverdale, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high50°
Average low37°
Average precipitation0.1 in
Chance of precipitation30%
Record high71° (2020)
Record low24° (1960)
Mon, 0950° / 36°0.1
50 °
Riverdale, Monday, 9 November
Climate normal for this date — 60-year average.
Average high50°
Average low36°
Average precipitation0.1 in
Chance of precipitation28%
Record high71° (2020)
Record low22° (1971)
Tue, 1051° / 37°0.15
51 °
Riverdale, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high51°
Average low37°
Average precipitation0.15 in
Chance of precipitation37%
Record high72° (2020)
Record low22° (2017)
Wed, 1149° / 36°0.12
49 °
Riverdale, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high49°
Average low36°
Average precipitation0.12 in
Chance of precipitation35%
Record high73° (2020)
Record low20° (2017)
Thu, 1248° / 35°0.13
48 °
Riverdale, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high48°
Average low35°
Average precipitation0.13 in
Chance of precipitation38%
Record high71° (2022)
Record low21° (1976)
Fri, 1346° / 33°0.15
46 °
Riverdale, Friday, 13 November
Climate normal for this date — 60-year average.
Average high46°
Average low33°
Average precipitation0.15 in
Chance of precipitation37%
Record high67° (1964)
Record low14° (2019)
Sat, 1447° / 33°0.11
47 °
Riverdale, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high47°
Average low33°
Average precipitation0.11 in
Chance of precipitation28%
Record high65° (1989)
Record low12° (1986)
Sun, 1547° / 34°0.13
47 °
Riverdale, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high47°
Average low34°
Average precipitation0.13 in
Chance of precipitation38%
Record high69° (1993)
Record low19° (1967)
Mon, 1647° / 33°0.15
47 °
Riverdale, Monday, 16 November
Climate normal for this date — 60-year average.
Average high47°
Average low33°
Average precipitation0.15 in
Chance of precipitation30%
Record high66° (2005)
Record low13° (1967)
Tue, 1746° / 32°0.13
46 °
Riverdale, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high46°
Average low32°
Average precipitation0.13 in
Chance of precipitation30%
Record high64° (2006)
Record low11° (1972)
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 Riverdale, 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 Riverdale, 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.