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7 Days
14 Days
Weekend
Monthly
Precipitation
Temperature
Wind
Temperature Unit Selection
°Celsius
°Fahrenheit
Monthly Historical Averages
Windham, NH
Content continues below
May
Average Temperature
High
21°
Feels 21
Low
9°
Feels 8
Average Precipitation
10 Days
Rain amount
65.8mm
Snow amount
0cm
Content continues below
Daily Historical Averages
May 2026
S
M
T
W
T
F
S
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
34°
20
30°
21
18°
22
20°
23
16°
24
13°
25
16°
26
20°
27
21°
28
22°
29
23°
30
23°
31
22°
Forecast
Tuesday, May 19, 2026
Day
34°
Feels 34
Wind
23 km/h W
Gust
35 km/h
Humidity
34%
P.O.P
40%
Rain
<1 mm
Night
24°
Feels 24
Wind
18 km/h SW
Gust
27 km/h
Humidity
61%
P.O.P
20%
Historical Averages
May 19
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity
Historical Averages are based on data recorded from 2000 onwards.