Monthly Historical AveragesHelena Regional Airport, MT
Average Temperature
High
18°
Feels 17
Low
5°
Feels 3
Average Precipitation
10 Days
35mm
0.3cm
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Daily Historical Averages
S
M
T
W
T
F
S
ForecastSunday, May 17, 2026
Day
7°Feels 4
Wind
27 km/h N
Gust
41 km/h
Humidity
49%
P.O.P
40%
Rain
<1 mm
Night
0°Feels -2
Wind
22 km/h NW
Gust
33 km/h
Humidity
86%
P.O.P
30%
Historical AveragesMay 17
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity