Monthly outlook for Marlborough, NH: average high 54.6°, average low 35.6°. That is 0.2° below the climate normal for October. Precipitation is expected on 3 days (about 0.4 inches), against a normal of 5 days and 2.1 inches. The warmest day looks like 19 October (64°), the coolest 18 October (30.3°).
54.6°/35.6°
Average high / low
−0.2°
Below normal
3 / 5
Wet days / normal
0.4 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
17 October – 26 October
58.2°
56.2°
+1.1°
27 October – 5 November
48.6°
52.8°
-2.3°
6 November – 15 November
at normal
47.8°
—
October records over 66 years
83.5°5 October 2007All-time high
21°31 October 2011All-time low
Climate normals and records are computed from the nearest reference point — Peterborough (12 mi).
Sun, 1854° / 30°0
54 °
Marlborough, Sunday, 18 October
Clear. High 54°, low 30°.
Pressure30.56 inHg
Wind3 mph SW
Humidity46%
Visibility6.2 mi
Dew point24°
Mon, 1964° / 34°0
64 °
Marlborough, Monday, 19 October
Clear. High 64°, low 34°.
Pressure30.45 inHg
Wind0.8 mph SW
Humidity43%
Visibility6.2 mi
Dew point35°
Tue, 2063° / 42°0
63 °
Marlborough, Tuesday, 20 October
Clear. High 63°, low 42°.
Pressure30.30 inHg
Wind8.6 mph NE
Humidity37%
Visibility6.2 mi
Dew point35°
Wed, 2155° / 37°0
55 °
Marlborough, Wednesday, 21 October
Clear. High 55°, low 37°.
Pressure30.39 inHg
Wind8 mph NE
Humidity53%
Visibility—
Dew point32°
Thu, 2260° / 34°0
60 °
Marlborough, Thursday, 22 October
Clear. High 60°, low 34°.
Pressure30.12 inHg
Wind8.9 mph N
Humidity49%
Visibility—
Dew point31°
Fri, 2357° / 37°0
57 °
Marlborough, Friday, 23 October
Clear. High 57°, low 37°.
Pressure30.24 inHg
Wind8.1 mph N
Humidity51%
Visibility—
Dew point32°
Sat, 2454° / 37°0
54 °
Marlborough, Saturday, 24 October
Clear. High 54°, low 37°.
Pressure30.45 inHg
Wind9.3 mph NE
Humidity44%
Visibility—
Dew point26°
Sun, 2560° / 35°0
60 °
Marlborough, Sunday, 25 October
Mostly clear. High 60°, low 35°.
Pressure30.24 inHg
Wind6.5 mph N
Humidity45%
Visibility—
Dew point29°
Mon, 2663° / 39°0
63 °
Marlborough, Monday, 26 October
Overcast. High 63°, low 39°.
Pressure30.06 inHg
Wind5.5 mph SW
Humidity44%
Visibility—
Dew point33°
Tue, 2752° / 38°0.06
52 °
Marlborough, Tuesday, 27 October
Light rain. High 52°, low 38°.
Pressure29.83 inHg
Wind16.5 mph NW
Humidity91%
Visibility—
Dew point49°
Wed, 2847° / 32°0
47 °
Marlborough, Wednesday, 28 October
Clear. High 47°, low 32°.
Pressure30.36 inHg
Wind14 mph NW
Humidity42%
Visibility—
Dew point19°
Thu, 2945° / 35°0.19
45 °
Marlborough, Thursday, 29 October
Light rain. High 45°, low 35°.
Pressure30.12 inHg
Wind8.2 mph S
Humidity55%
Visibility—
Dew point26°
Fri, 3045° / 39°0.14
45 °
Marlborough, Friday, 30 October
Rain. High 45°, low 39°.
Pressure29.71 inHg
Wind9.8 mph NW
Humidity94%
Visibility—
Dew point43°
Sat, 3150° / 34°0
50 °
Marlborough, Saturday, 31 October
Partly cloudy. High 50°, low 34°.
Pressure30.21 inHg
Wind8.5 mph NW
Humidity61%
Visibility—
Dew point31°
Sun, 0153° / 36°0
53 °
Marlborough, Sunday, 1 November
Overcast. High 53°, low 36°.
Pressure30.30 inHg
Wind10.2 mph SW
Humidity67%
Visibility—
Dew point37°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 0253° / 39°0.1
53 °
Marlborough, Monday, 2 November
Climate normal for this date — 60-year average.
Average high53°
Average low39°
Average precipitation0.1 in
Chance of precipitation32%
Record high72° (1982)
Record low24° (1965)
Tue, 0353° / 38°0.17
53 °
Marlborough, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high53°
Average low38°
Average precipitation0.17 in
Chance of precipitation37%
Record high69° (1990)
Record low22° (2002)
Wed, 0452° / 38°0.08
52 °
Marlborough, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high52°
Average low38°
Average precipitation0.08 in
Chance of precipitation25%
Record high71° (1987)
Record low26° (2013)
Thu, 0552° / 38°0.17
52 °
Marlborough, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high52°
Average low38°
Average precipitation0.17 in
Chance of precipitation38%
Record high71° (1994)
Record low26° (1965)
Fri, 0650° / 38°0.14
50 °
Marlborough, Friday, 6 November
Climate normal for this date — 60-year average.
Average high50°
Average low38°
Average precipitation0.14 in
Chance of precipitation35%
Record high73° (2024)
Record low26° (2012)
Sat, 0750° / 36°0.06
50 °
Marlborough, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high50°
Average low36°
Average precipitation0.06 in
Chance of precipitation28%
Record high69° (2020)
Record low21° (2002)
Sun, 0849° / 36°0.1
49 °
Marlborough, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high49°
Average low36°
Average precipitation0.1 in
Chance of precipitation32%
Record high70° (2020)
Record low20° (2002)
Mon, 0949° / 36°0.11
49 °
Marlborough, Monday, 9 November
Climate normal for this date — 60-year average.
Average high49°
Average low36°
Average precipitation0.11 in
Chance of precipitation28%
Record high70° (2020)
Record low20° (1971)
Tue, 1049° / 36°0.14
49 °
Marlborough, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high49°
Average low36°
Average precipitation0.14 in
Chance of precipitation37%
Record high69° (2020)
Record low20° (2017)
Wed, 1148° / 35°0.13
48 °
Marlborough, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high48°
Average low35°
Average precipitation0.13 in
Chance of precipitation35%
Record high70° (2020)
Record low17° (2017)
Thu, 1247° / 34°0.15
47 °
Marlborough, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high47°
Average low34°
Average precipitation0.15 in
Chance of precipitation37%
Record high68° (2022)
Record low19° (1976)
Fri, 1345° / 32°0.15
45 °
Marlborough, Friday, 13 November
Climate normal for this date — 60-year average.
Average high45°
Average low32°
Average precipitation0.15 in
Chance of precipitation38%
Record high65° (1964)
Record low11° (2019)
Sat, 1445° / 32°0.1
45 °
Marlborough, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high45°
Average low32°
Average precipitation0.1 in
Chance of precipitation25%
Record high64° (1989)
Record low11° (1986)
Sun, 1546° / 33°0.13
46 °
Marlborough, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high46°
Average low33°
Average precipitation0.13 in
Chance of precipitation45%
Record high67° (1993)
Record low16° (2018)
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 Marlborough, 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 Marlborough, 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.