Monthly Historical AveragesWaltham, MA
Average Temperature
High
21°
Feels 21
Low
9°
Feels 8
Average Precipitation
10 Days
59.3mm
0cm
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Daily Historical Averages
S
M
T
W
T
F
S
ForecastMonday, May 11, 2026
Day
18°Feels 18
Wind
13 km/h NW
Gust
33 km/h
Humidity
30%
P.O.P
30%
Night
6°Feels 3
Wind
15 km/h NW
Gust
28 km/h
Humidity
70%
P.O.P
30%
Historical AveragesMay 11
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity