Helena weather live forecast

Today's maximum temperature in Helena is expected to be 63°F. Select a day from the live weather forecast for Helena, Montana, USA for more weather parameters.

Friday
15th May
63

46

11

7
Saturday
16th May
55

41

0

3
Sunday
17th May
45

36

0

5
Monday
18th May
50

34

6

5
Tuesday
19th May
61

34

9

6

5-day weather forecast updated at 04:00 on Friday 15th May 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 Friday 15th May 2026

Expect scattered clouds in Helena, Montana with a maximum temperature of 63°F, maximum UV of 7 (High) and 11 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 17 mph from the west.

63
°F maximum temperature
46
°F minimum temperature
scattered clouds
11
hours of sunshine
7
UV index (High)
0
mm of rainfall expected
0
no heat & humidity
17
mph wind from W

Helena weather for Saturday 16th May 2026

Expect mostly cloudy with light rain in Helena, Montana with a maximum temperature of 55°F, maximum UV of 3 (Moderate) and no hours of bright sunshine. There are 0-2 mm of rainfall expected with 35% chance of some rain and a gentle breeze of 12 mph from the west.

55
°F maximum temperature
41
°F minimum temperature
mostly cloudy with light rain
0
hours of sunshine
3
UV index (Moderate)
35
% chance of some rain
<2
mm of rainfall expected
55
°F wind chill
12
mph wind from W

Helena weather for Sunday 17th May 2026

Expect overcast with light rain in Helena, Montana with a maximum temperature of 45°F, maximum UV of 5 (Moderate) and no hours of bright sunshine. There are 2-5 mm of rainfall expected with 66% chance of some rain and a moderate breeze of 16 mph from the north.

45
°F maximum temperature
36
°F minimum temperature
overcast with light rain
0
hours of sunshine
5
UV index (Moderate)
66
% chance of some rain
<5
mm of rainfall expected
39
°F wind chill
16
mph wind from N

Helena weather for Monday 18th May 2026

Expect mostly cloudy with light rain in Helena, Montana with a maximum temperature of 50°F, maximum UV of 5 (Moderate) and 6 hours of bright sunshine. There are 0-2 mm of rainfall expected with 33% chance of some rain and a gentle breeze of 11 mph from the north.

50
°F maximum temperature
34
°F minimum temperature
mostly cloudy with light rain
6
hours of sunshine
5
UV index (Moderate)
33
% chance of some rain
<2
mm of rainfall expected
0
no heat & humidity
11
mph wind from N

Helena weather for Tuesday 19th May 2026

Expect scattered clouds in Helena, Montana with a maximum temperature of 61°F, maximum UV of 6 (High) and 9 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 10 mph from the west.