Monthly outlook for Blair, NH: average high 56.6°, average low 36.5°. That is 2.9° above the climate normal for October. Precipitation is expected on 4 days (about 0.9 inches), against a normal of 5 days and 2.4 inches. The warmest day looks like 1 November (67.8°), the coolest 18 October (28.3°).
56.6°/36.5°
Average high / low
+2.9°
Above normal
4 / 5
Wet days / normal
0.9 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
18 October – 27 October
53.8°
52.4°
+0.8°
28 October – 6 November
61.2°
48.8°
+6.9°
7 November – 16 November
at normal
43.8°
—
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).
Mon, 1961° / 34°0
61 °
Blair, Monday, 19 October
Clear. High 61°, low 34°.
Pressure30.42 inHg
Wind0.6 mph W
Humidity44%
Visibility6.2 mi
Dew point34°
Tue, 2061° / 38°0
61 °
Blair, Tuesday, 20 October
Clear. High 61°, low 38°.
Pressure30.27 inHg
Wind5.6 mph NW
Humidity43%
Visibility6.2 mi
Dew point36°
Wed, 2156° / 29°0
56 °
Blair, Wednesday, 21 October
Clear. High 56°, low 29°.
Pressure30.27 inHg
Wind1 mph S
Humidity49%
Visibility6.2 mi
Dew point33°
Thu, 2251° / 33°0
51 °
Blair, Thursday, 22 October
Overcast. High 51°, low 33°.
Pressure29.97 inHg
Wind13.5 mph NW
Humidity58%
Visibility—
Dew point35°
Fri, 2344° / 31°0
44 °
Blair, Friday, 23 October
Overcast. High 44°, low 31°.
Pressure30.27 inHg
Wind13.5 mph NW
Humidity67%
Visibility—
Dew point31°
Sat, 2455° / 28°0
55 °
Blair, Saturday, 24 October
Clear. High 55°, low 28°.
Pressure30.65 inHg
Wind3.4 mph NW
Humidity36%
Visibility—
Dew point20°
Sun, 2557° / 34°0.05
57 °
Blair, Sunday, 25 October
Light rain. High 57°, low 34°.
Pressure30.39 inHg
Wind6 mph SW
Humidity37%
Visibility—
Dew point23°
Mon, 2653° / 38°0
53 °
Blair, Monday, 26 October
Clear. High 53°, low 38°.
Pressure30.24 inHg
Wind10.5 mph NW
Humidity63%
Visibility—
Dew point37°
Tue, 2747° / 31°0
47 °
Blair, Tuesday, 27 October
Light rain. High 47°, low 31°.
Pressure30.27 inHg
Wind13.7 mph NW
Humidity56%
Visibility—
Dew point30°
Wed, 2853° / 29°0
53 °
Blair, Wednesday, 28 October
Partly cloudy. High 53°, low 29°.
Pressure30.42 inHg
Wind5 mph W
Humidity31%
Visibility—
Dew point15°
Thu, 2960° / 41°0.31
60 °
Blair, Thursday, 29 October
Rain. High 60°, low 41°.
Pressure30.12 inHg
Wind4.7 mph S
Humidity58%
Visibility—
Dew point39°
Fri, 3066° / 52°0.4
66 °
Blair, Friday, 30 October
Rain. High 66°, low 52°.
Pressure29.85 inHg
Wind10.1 mph W
Humidity87%
Visibility—
Dew point58°
Sat, 3165° / 48°0
65 °
Blair, Saturday, 31 October
Partly cloudy. High 65°, low 48°.
Pressure30.15 inHg
Wind4.9 mph SE
Humidity74%
Visibility—
Dew point49°
Sun, 0168° / 51°0.11
68 °
Blair, Sunday, 1 November
Light rain. High 68°, low 51°.
Pressure29.94 inHg
Wind11.3 mph W
Humidity100%
Visibility—
Dew point59°
Mon, 0256° / 40°0
56 °
Blair, Monday, 2 November
Overcast. High 56°, low 40°.
Pressure30.24 inHg
Wind9.8 mph NW
Humidity52%
Visibility—
Dew point33°
From day 17 onward the outlook is built from 60-year climate statistics
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)
Thu, 1243° / 31°0.17
43 °
Blair, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high43°
Average low31°
Average precipitation0.17 in
Chance of precipitation38%
Record high63° (2022)
Record low11° (2018)
Fri, 1342° / 30°0.17
42 °
Blair, Friday, 13 November
Climate normal for this date — 60-year average.
Average high42°
Average low30°
Average precipitation0.17 in
Chance of precipitation38%
Record high60° (1964)
Record low8° (2019)
Sat, 1442° / 30°0.1
42 °
Blair, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high42°
Average low30°
Average precipitation0.1 in
Chance of precipitation32%
Record high59° (2011)
Record low8° (2018)
Sun, 1542° / 31°0.14
42 °
Blair, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high42°
Average low31°
Average precipitation0.14 in
Chance of precipitation42%
Record high60° (2008)
Record low4° (2018)
Mon, 1642° / 30°0.17
42 °
Blair, Monday, 16 November
Climate normal for this date — 60-year average.
Average high42°
Average low30°
Average precipitation0.17 in
Chance of precipitation40%
Record high60° (2008)
Record low11° (2019)
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.