Monthly outlook for Blair, NH: average high 54.1°, average low 39.4°. That is 0.5° above the climate normal for October. Precipitation is expected on 5 days (about 2.4 inches), against a normal of 5 days and 2.4 inches. The warmest day looks like 24 October (67.7°), the coolest 18 October (30.2°).
54.1°/39.4°
Average high / low
+0.5°
Above normal
5 / 5
Wet days / normal
2.4 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
13 October – 22 October
54.6°
54.3°
+0.2°
23 October – 1 November
53.3°
50.5°
+1.6°
2 November – 11 November
at normal
46.8°
—
October records over 66 years
80.1°6 October 2025All-time high
21°31 October 2020All-time low
Climate normals and records are computed from the nearest reference point — Sandwich (11 mi).
Wed, 1466° / 49°0.01
66 °
Blair, Wednesday, 14 October
Light rain. High 66°, low 49°.
Pressure29.74 inHg
Wind10.6 mph W
Humidity70%
Visibility6.2 mi
Dew point56°
Thu, 1554° / 41°0
54 °
Blair, Thursday, 15 October
Overcast. High 54°, low 41°.
Pressure30.21 inHg
Wind9 mph NW
Humidity49%
Visibility6.2 mi
Dew point31°
Fri, 1649° / 40°0.92
49 °
Blair, Friday, 16 October
Rain. High 49°, low 40°.
Pressure29.68 inHg
Wind11.8 mph SE
Humidity99%
Visibility1.4 mi
Dew point45°
Sat, 1741° / 33°0.05
41 °
Blair, Saturday, 17 October
Snow. High 41°, low 33°.
Pressure29.91 inHg
Wind18 mph NW
Humidity80%
Visibility—
Dew point32°
Sun, 1848° / 30°0
48 °
Blair, Sunday, 18 October
Overcast. High 48°, low 30°.
Pressure30.27 inHg
Wind12.5 mph NW
Humidity62%
Visibility—
Dew point30°
Mon, 1958° / 32°0
58 °
Blair, Monday, 19 October
Clear. High 58°, low 32°.
Pressure30.39 inHg
Wind7.8 mph SW
Humidity43%
Visibility—
Dew point28°
Tue, 2060° / 40°0
60 °
Blair, Tuesday, 20 October
Overcast. High 60°, low 40°.
Pressure30.30 inHg
Wind8.4 mph NW
Humidity66%
Visibility—
Dew point42°
Wed, 2158° / 37°0
58 °
Blair, Wednesday, 21 October
Clear. High 58°, low 37°.
Pressure30.42 inHg
Wind3.8 mph N
Humidity55%
Visibility—
Dew point35°
Thu, 2260° / 37°0
60 °
Blair, Thursday, 22 October
Mostly clear. High 60°, low 37°.
Pressure30.47 inHg
Wind2.6 mph SE
Humidity63%
Visibility—
Dew point38°
Fri, 2364° / 42°0
64 °
Blair, Friday, 23 October
Overcast. High 64°, low 42°.
Pressure30.24 inHg
Wind7.4 mph W
Humidity60%
Visibility—
Dew point43°
Sat, 2468° / 50°0
68 °
Blair, Saturday, 24 October
Overcast. High 68°, low 50°.
Pressure29.94 inHg
Wind15.7 mph W
Humidity68%
Visibility—
Dew point54°
Sun, 2554° / 45°0
54 °
Blair, Sunday, 25 October
Overcast. High 54°, low 45°.
Pressure30.18 inHg
Wind12.6 mph NW
Humidity55%
Visibility—
Dew point35°
Mon, 2648° / 41°0.16
48 °
Blair, Monday, 26 October
Light rain. High 48°, low 41°.
Pressure30.06 inHg
Wind3.9 mph NW
Humidity90%
Visibility—
Dew point42°
Tue, 2746° / 37°0.04
46 °
Blair, Tuesday, 27 October
Light rain. High 46°, low 37°.
Pressure29.71 inHg
Wind3.1 mph N
Humidity69%
Visibility—
Dew point35°
Wed, 2840° / 34°0.03
40 °
Blair, Wednesday, 28 October
Light rain. High 40°, low 34°.
Pressure29.44 inHg
Wind2.8 mph E
Humidity97%
Visibility—
Dew point38°
From day 17 onward the outlook is built from 60-year climate statistics
Thu, 2949° / 36°0.11
49 °
Blair, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high49°
Average low36°
Average precipitation0.11 in
Chance of precipitation33%
Record high67° (1971)
Record low25° (1965)
Fri, 3048° / 35°0.17
48 °
Blair, Friday, 30 October
Climate normal for this date — 60-year average.
Average high48°
Average low35°
Average precipitation0.17 in
Chance of precipitation28%
Record high66° (1989)
Record low25° (2020)
Sat, 3149° / 36°0.11
49 °
Blair, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high49°
Average low36°
Average precipitation0.11 in
Chance of precipitation27%
Record high70° (2024)
Record low21° (2020)
Sun, 0150° / 37°0.12
50 °
Blair, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high50°
Average low37°
Average precipitation0.12 in
Chance of precipitation25%
Record high68° (1974)
Record low25° (2023)
Mon, 0249° / 36°0.15
49 °
Blair, Monday, 2 November
Climate normal for this date — 60-year average.
Average high49°
Average low36°
Average precipitation0.15 in
Chance of precipitation33%
Record high65° (2001)
Record low20° (2002)
Tue, 0349° / 36°0.23
49 °
Blair, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high49°
Average low36°
Average precipitation0.23 in
Chance of precipitation43%
Record high66° (1990)
Record low19° (2002)
Wed, 0448° / 35°0.08
48 °
Blair, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high48°
Average low35°
Average precipitation0.08 in
Chance of precipitation27%
Record high66° (1987)
Record low22° (2020)
Thu, 0547° / 35°0.16
47 °
Blair, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high47°
Average low35°
Average precipitation0.16 in
Chance of precipitation38%
Record high69° (2022)
Record low23° (1965)
Fri, 0647° / 36°0.15
47 °
Blair, Friday, 6 November
Climate normal for this date — 60-year average.
Average high47°
Average low36°
Average precipitation0.15 in
Chance of precipitation37%
Record high69° (2024)
Record low25° (1987)
Sat, 0747° / 35°0.07
47 °
Blair, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high47°
Average low35°
Average precipitation0.07 in
Chance of precipitation25%
Record high65° (2020)
Record low15° (2002)
Sun, 0845° / 33°0.09
45 °
Blair, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high45°
Average low33°
Average precipitation0.09 in
Chance of precipitation27%
Record high65° (2020)
Record low15° (2002)
Mon, 0945° / 33°0.12
45 °
Blair, Monday, 9 November
Climate normal for this date — 60-year average.
Average high45°
Average low33°
Average precipitation0.12 in
Chance of precipitation30%
Record high65° (2020)
Record low18° (1971)
Tue, 1046° / 33°0.15
46 °
Blair, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high46°
Average low33°
Average precipitation0.15 in
Chance of precipitation38%
Record high66° (2020)
Record low17° (2017)
Wed, 1145° / 33°0.16
45 °
Blair, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high45°
Average low33°
Average precipitation0.16 in
Chance of precipitation45%
Record high65° (2020)
Record low14° (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 Blair, 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 Blair, 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.