Monthly Historical AveragesWestby, MT
Average Temperature
High
-5°
Feels -10
Low
-15°
Feels -23
Average Precipitation
1 Days
0mm
6.4cm
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Daily Historical Averages
S
M
T
W
T
F
S
ForecastSaturday, February 21, 2026
Day
-14°Feels -22
Wind
20 km/h NW
Gust
30 km/h
Humidity
55%
P.O.P
0%
Night
-27°Feels -33
Wind
13 km/h N
Gust
20 km/h
Humidity
84%
P.O.P
10%
Historical AveragesFeb 21
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity