Helena weather live forecast

Today's maximum temperature in Helena is expected to be 66°F. Select a day from the live weather forecast for Helena, Montana, USA for more weather parameters.

Tuesday
8th Sep
66

46

8

5
Wednesday
9th Sep
75

46

13

6
Thursday
10th Sep
81

52

10

6
Friday
11th Sep
66

52

4

5
Saturday
12th Sep
59

46

7

4

5-day weather forecast updated at 04:00 on Tuesday 8th September 2026 GMT

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The 5-day weather forecast for Montana (Helena) is provided by the Swiss meteorological agency, meteoblue. Find out more about our data sources.

Helena weather forecast by day

Below are the detailed weather forecasts for Helena for the next 5 days.

Helena weather for Tuesday 8th September 2026

Expect scattered clouds in Helena, Montana with a maximum temperature of 66°F, maximum UV of 5 (Moderate) and 8 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 12 mph from the west.

66
°F maximum temperature
46
°F minimum temperature
scattered clouds
8
hours of sunshine
5
UV index (Moderate)
0
mm of rainfall expected
66
°F wind chill
12
mph wind from W

Helena weather for Wednesday 9th September 2026

Expect clear skies in Helena, Montana with a maximum temperature of 75°F, maximum UV of 6 (High) and 13 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 14 mph from the west.

75
°F maximum temperature
46
°F minimum temperature
clear skies
13
hours of sunshine
6
UV index (High)
0
mm of rainfall expected
75
°F wind chill
14
mph wind from W

Helena weather for Thursday 10th September 2026

Expect scattered clouds in Helena, Montana with a maximum temperature of 81°F, low levels of heat & humidity, maximum UV of 6 (High) and 10 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 13 mph from the west.

81
°F maximum temperature
52
°F minimum temperature
scattered clouds
10
hours of sunshine
6
UV index (High)
0
mm of rainfall expected
L
low heat & humidity
13
mph wind from W

Helena weather for Friday 11th September 2026

Expect mostly cloudy with light rain in Helena, Montana with a maximum temperature of 66°F, maximum UV of 5 (Moderate) and 4 hours of bright sunshine. There are 0-2 mm of rainfall expected with 25% chance of some rain and a gentle breeze of 10 mph from the north.

66
°F maximum temperature
52
°F minimum temperature
mostly cloudy with light rain
4
hours of sunshine
5
UV index (Moderate)
25
% chance of some rain
<2
mm of rainfall expected
66
°F wind chill
10
mph wind from N

Helena weather for Saturday 12th September 2026

Expect sunshine and showers in Helena, Montana with a maximum temperature of 59°F, maximum UV of 4 (Moderate) and 7 hours of bright sunshine. There are 2-5 mm of rainfall expected with 51% chance of some rain and a moderate breeze of 14 mph from the north.