Flights to Helena, MT, United States

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Weather in Helena

Average Weather

Month	Average monthly max temperature	Average monthly min temperature
January	-1°C	-10°C
February	-1°C	-10°C
March	4°C	-5°C
April	9°C	-1°C
May	15°C	3°C
June	21°C	7°C
July	27°C	11°C
August	26°C	11°C
September	21°C	7°C
October	11°C	0°C
November	3°C	-6°C
December	-1°C	-10°C

Hottest Month

27°C

July

Coldest month

-10°C

February

Sunny days

258

days per year

Snow days

days per year

14 day forecast

Friday

10 Oct

27°C3°C

17 Oct

13°C1°C

Saturday

11 Oct

15°C3°C

18 Oct

18°C5°C

Sunday

12 Oct

80%

9°C-3°C

19 Oct

87%

7°C1°C

Monday

13 Oct

84%

2°C-5°C

20 Oct

85%

6°C0°C

Tuesday

14 Oct

8°C-3°C

21 Oct

11°C-1°C

Wednesday

15 Oct

14°C0°C

22 Oct

66%

4°C-3°C

Thursday

16 Oct

13°C0°C

23 Oct

3°C-10°C

Cheapest month to fly to Helena

Explore price trends for trips to Helena

Showing prices in USD

Annual Avg. Price	298 USD
November 2025	91 USD
December 2025	91 USD
January 2026	91 USD
February 2026	90 USD
March 2026	151 USD
April 2026	152 USD
May 2026	157 USD
June 2026	188 USD
July 2026	157 USD
August 2026	157 USD
September 2026	1952 USD