Helena weather live forecast

Today's maximum temperature in Helena is expected to be 36°F. Select a day from the live weather forecast for Helena, Montana, USA for more weather parameters.

Sunday
21st Dec
36

23

1

0
Monday
22nd Dec
41

30

3

1
Tuesday
23rd Dec
41

28

3

1
Wednesday
24th Dec
45

34

4

1
Thursday
25th Dec
45

30

1

1

5-day weather forecast updated at 04:00 on Sunday 21st December 2025 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 Sunday 21st December 2025

Expect mostly cloudy with light rain in Helena, Montana with a maximum temperature of 36°F and 1 hour of bright sunshine. There are 0-2 mm of rainfall expected with 46% chance of some rain and a light breeze of 6 mph from the south-west.

36
°F maximum temperature
23
°F minimum temperature
mostly cloudy with light rain
1
hour of sunshine
0
UV index (None)
46
% chance of some rain
<2
mm of rainfall expected
30
°F wind chill
6
mph wind from SW

Helena weather for Monday 22nd December 2025

Expect cloudy with sleet or snow in Helena, Montana with a maximum temperature of 41°F, maximum UV of 1 (Low) and 3 hours of bright sunshine. There are 10-20 mm of sleet/snow expected with 26% chance of some sleet or snow and a gentle breeze of 11 mph from the west.

41
°F maximum temperature
30
°F minimum temperature
cloudy with sleet or snow
3
hours of sunshine
1
UV index (Low)
26
% chance of some sleet or snow
<20
mm of sleet/snow expected
36
°F wind chill
11
mph wind from W

Helena weather for Tuesday 23rd December 2025

Expect broken clouds in Helena, Montana with a maximum temperature of 41°F, maximum UV of 1 (Low) and 3 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 4 mph from the south.

41
°F maximum temperature
28
°F minimum temperature
broken clouds
3
hours of sunshine
1
UV index (Low)
0
mm of rainfall expected
37
°F wind chill
4
mph wind from S

Helena weather for Wednesday 24th December 2025

Expect clear skies with flurries of snow in Helena, Montana with a maximum temperature of 45°F, maximum UV of 1 (Low) and 4 hours of bright sunshine. There are 0-2 cm of snow expected with 42% chance of some snow and a light breeze of 5 mph from the south.

45
°F maximum temperature
34
°F minimum temperature
clear skies with flurries of snow
4
hours of sunshine
1
UV index (Low)
42
% chance of some snow
<2
cm of snow expected
41
°F wind chill
5
mph wind from S

Helena weather for Thursday 25th December 2025

Expect broken clouds in Helena, Montana with a maximum temperature of 45°F, maximum UV of 1 (Low) and 1 hour of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 5 mph from the south-west.