Monthly outlook for Blair, NH: average high 53.6°, average low 37.7°. That is 0° above the climate normal for October. Precipitation is expected on 9 days (about 2.8 inches), against a normal of 5 days and 2.3 inches. The warmest day looks like 12 October (65.9°), the coolest 18 October (28.9°).
53.6°/37.7°
Average high / low
+0°
Above normal
9 / 5
Wet days / normal
2.8 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
12 October – 21 October
54.2°
54.7°
-0.3°
22 October – 31 October
52.8°
50.8°
+1.1°
1 November – 10 November
at normal
47.3°
—
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).
Tue, 1354° / 43°1.16
54 °
Blair, Tuesday, 13 October
Heavy rain. High 54°, low 43°.
Pressure30.06 inHg
Wind7.9 mph SE
Humidity98%
Visibility1.2 mi
Dew point42°
Wed, 1461° / 46°0.11
61 °
Blair, Wednesday, 14 October
Light rain. High 61°, low 46°.
Pressure29.77 inHg
Wind4.5 mph NW
Humidity95%
Visibility6.2 mi
Dew point58°
Thu, 1554° / 39°0
54 °
Blair, Thursday, 15 October
Mostly clear. High 54°, low 39°.
Pressure30.21 inHg
Wind8.2 mph NW
Humidity49%
Visibility6.2 mi
Dew point31°
Fri, 1648° / 39°0.59
48 °
Blair, Friday, 16 October
Rain. High 48°, low 39°.
Pressure29.68 inHg
Wind8.3 mph SE
Humidity99%
Visibility1.8 mi
Dew point46°
Sat, 1742° / 32°0.05
42 °
Blair, Saturday, 17 October
Snow. High 42°, low 32°.
Pressure29.94 inHg
Wind18.8 mph NW
Humidity72%
Visibility—
Dew point30°
Sun, 1848° / 29°0
48 °
Blair, Sunday, 18 October
Mostly clear. High 48°, low 29°.
Pressure30.42 inHg
Wind11.5 mph W
Humidity38%
Visibility—
Dew point16°
Mon, 1961° / 33°0
61 °
Blair, Monday, 19 October
Clear. High 61°, low 33°.
Pressure30.39 inHg
Wind7.5 mph W
Humidity40%
Visibility—
Dew point29°
Tue, 2057° / 41°0
57 °
Blair, Tuesday, 20 October
Overcast. High 57°, low 41°.
Pressure30.24 inHg
Wind6 mph NW
Humidity61%
Visibility—
Dew point41°
Wed, 2151° / 32°0
51 °
Blair, Wednesday, 21 October
Clear. High 51°, low 32°.
Pressure30.36 inHg
Wind8.2 mph NW
Humidity46%
Visibility—
Dew point28°
Thu, 2253° / 31°0
53 °
Blair, Thursday, 22 October
Clear. High 53°, low 31°.
Pressure30.62 inHg
Wind3.6 mph NW
Humidity38%
Visibility—
Dew point20°
Fri, 2351° / 33°0.1
51 °
Blair, Friday, 23 October
Light rain. High 51°, low 33°.
Pressure30.30 inHg
Wind4.8 mph NW
Humidity49%
Visibility—
Dew point30°
Sat, 2451° / 36°0
51 °
Blair, Saturday, 24 October
Partly cloudy. High 51°, low 36°.
Pressure30.21 inHg
Wind10.2 mph NW
Humidity66%
Visibility—
Dew point33°
Sun, 2550° / 36°0.12
50 °
Blair, Sunday, 25 October
Light rain. High 50°, low 36°.
Pressure30.15 inHg
Wind5.5 mph SE
Humidity77%
Visibility—
Dew point35°
Mon, 2662° / 46°0.39
62 °
Blair, Monday, 26 October
Light rain. High 62°, low 46°.
Pressure29.53 inHg
Wind8.2 mph NW
Humidity83%
Visibility—
Dew point52°
Tue, 2750° / 38°0.15
50 °
Blair, Tuesday, 27 October
Light rain. High 50°, low 38°.
Pressure29.32 inHg
Wind14.8 mph NW
Humidity61%
Visibility—
Dew point32°
From day 17 onward the outlook is built from 60-year climate statistics
Wed, 2851° / 37°0.19
51 °
Blair, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high51°
Average low37°
Average precipitation0.19 in
Chance of precipitation37%
Record high71° (2023)
Record low26° (1976)
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)
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.