Currently: 39 °F. Passing clouds. (Weather station: Helena Regional Airport, USA). See more current weatherAnnual Weather Averages in Helena
Based on weather reports collected during 1985–2015.
All Year Climate & Weather Averages in Helena
High Temp: 86 °F
Low Temp: 14 °F
Mean Temp: 46 °F
Precipitation: 0.46"
Humidity: 56%
Dew Point: 29 °F
Wind: 5 mph
Pressure: 30.07 "Hg
Visibility: 13 mi
January Climate & Weather Averages in Helena
High Temp: 34 °F
Low Temp: 14 °F
Mean Temp: 24 °F
Precipitation: 0.21"
Humidity: 70%
Dew Point: 15 °F
Wind: 5 mph
Pressure: 30.20 "Hg
Visibility: 11 mi
February Climate & Weather Averages in Helena
High Temp: 38 °F
Low Temp: 17 °F
Mean Temp: 28 °F
Precipitation: 0.25"
Humidity: 65%
Dew Point: 17 °F
Wind: 5 mph
Pressure: 30.16 "Hg
Visibility: 12 mi
March Climate & Weather Averages in Helena
High Temp: 49 °F
Low Temp: 25 °F
Mean Temp: 37 °F
Precipitation: 0.28"
Humidity: 57%
Dew Point: 22 °F
Wind: 6 mph
Pressure: 30.07 "Hg
Visibility: 13 mi
April Climate & Weather Averages in Helena
High Temp: 57 °F
Low Temp: 32 °F
Mean Temp: 45 °F
Precipitation: 0.51"
Humidity: 52%
Dew Point: 27 °F
Wind: 7 mph
Pressure: 30.01 "Hg
Visibility: 13 mi
May Climate & Weather Averages in Helena
High Temp: 66 °F
Low Temp: 41 °F
Mean Temp: 54 °F
Precipitation: 1.00"
Humidity: 51%
Dew Point: 35 °F
Wind: 6 mph
Pressure: 29.97 "Hg
Visibility: 14 mi
June Climate & Weather Averages in Helena
High Temp: 76 °F
Low Temp: 49 °F
Mean Temp: 62 °F
Precipitation: 1.19"
Humidity: 51%
Dew Point: 42 °F
Wind: 6 mph
Pressure: 29.94 "Hg
Visibility: 15 mi
July Climate & Weather Averages in Helena
High Temp: 86 °F
Low Temp: 54 °F
Mean Temp: 70 °F
Precipitation: 0.53"
Humidity: 42%
Dew Point: 44 °F
Wind: 5 mph
Pressure: 29.97 "Hg
Visibility: 15 mi
August Climate & Weather Averages in Helena
High Temp: 85 °F
Low Temp: 52 °F
Mean Temp: 68 °F
Precipitation: 0.49"
Humidity: 43%
Dew Point: 43 °F
Wind: 4 mph
Pressure: 29.99 "Hg
Visibility: 14 mi
September Climate & Weather Averages in Helena
High Temp: 74 °F
Low Temp: 44 °F
Mean Temp: 59 °F
Precipitation: 0.35"
Humidity: 48%
Dew Point: 37 °F
Wind: 5 mph
Pressure: 30.04 "Hg
Visibility: 14 mi
October Climate & Weather Averages in Helena
High Temp: 59 °F
Low Temp: 33 °F
Mean Temp: 46 °F
Precipitation: 0.23"
Humidity: 56%
Dew Point: 30 °F
Wind: 5 mph
Pressure: 30.10 "Hg
Visibility: 13 mi
November Climate & Weather Averages in Helena
High Temp: 44 °F
Low Temp: 23 °F
Mean Temp: 33 °F
Precipitation: 0.24"
Humidity: 64%
Dew Point: 21 °F
Wind: 5 mph
Pressure: 30.14 "Hg
Visibility: 12 mi
December Climate & Weather Averages in Helena
High Temp: 33 °F
Low Temp: 14 °F
Mean Temp: 24 °F
Precipitation: 0.22"
Humidity: 70%
Dew Point: 15 °F
Wind: 4 mph
Pressure: 30.20 "Hg
Visibility: 11 mi