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Monthly
Forecasts
Current
Hourly
7 Days
14 Days
Monthly
°C
Temperature Unit Selection
°Celsius
°Fahrenheit
Monthly Historical Averages
Brentwood, NH
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January
Average Temperature
High
1°
Feels -2
Low
-8°
Feels -13
Average Precipitation
8 Days
Rain amount
18.9mm
Snow amount
42.7cm
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Daily Historical Averages
January 2026
S
M
T
W
T
F
S
1
2
3
4
5
6
0°
7
3°
8
5°
9
6°
10
6°
11
4°
12
3°
13
6°
14
5°
15
3°
16
2°
17
3°
18
1°
19
-1°
20
-1°
21
22
23
24
25
26
27
28
29
30
31
Forecast
Tuesday, January 6, 2026
Day
0°
Feels -2
Wind
8 km/h E
Gust
18 km/h
Humidity
69%
P.O.P
30%
Night
-2°
Feels -6
Wind
14 km/h NE
Gust
21 km/h
Humidity
100%
P.O.P
80%
Snow
1-3 cm
Rain
<1 mm
Historical Averages
Jan 6
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity
Historical Averages are based on data recorded from 2000 onwards.