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.

Friday
22nd May
66

39

7

UV6
Saturday
23rd May
73

45

8

UV6
Sunday
24th May
79

48

11

UV7
Monday
25th May
81

48

8

UV7
Tuesday
26th May
72

48

5

UV5

5-day weather forecast updated at 04:00 on Friday 22nd 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 22nd May 2026

Expect broken clouds in Helena, Montana with a maximum temperature of 66°F, maximum UV of 6 (High) and 7 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 7 mph from the north-east.

66
°F maximum temperature
39
°F minimum temperature
broken clouds
7
hours of sunshine
UV6
UV index (High)
0
mm of rainfall expected
0
no heat & humidity
7
mph wind from NE

Helena weather for Saturday 23rd May 2026

Expect scattered clouds in Helena, Montana with a maximum temperature of 73°F, maximum UV of 6 (High) and 8 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 10 mph from the west.

73
°F maximum temperature
45
°F minimum temperature
scattered clouds
8
hours of sunshine
UV6
UV index (High)
0
mm of rainfall expected
0
no heat & humidity
10
mph wind from W

Helena weather for Sunday 24th May 2026

Expect scattered clouds in Helena, Montana with a maximum temperature of 79°F, maximum UV of 7 (High) and 11 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 14 mph from the west.

79
°F maximum temperature
48
°F minimum temperature
scattered clouds
11
hours of sunshine
UV7
UV index (High)
0
mm of rainfall expected
79
°F wind chill
14
mph wind from W

Helena weather for Monday 25th May 2026

Expect sunshine and showers in Helena, Montana with a maximum temperature of 81°F, low levels of heat & humidity, maximum UV of 7 (High) and 8 hours of bright sunshine. There are 0-2 mm of rainfall expected with 31% chance of some rain and a moderate breeze of 13 mph from the south.

81
°F maximum temperature
48
°F minimum temperature
sunshine and showers
8
hours of sunshine
UV7
UV index (High)
31
% chance of some rain
<2
mm of rainfall expected
L
low heat & humidity
13
mph wind from S

Helena weather for Tuesday 26th May 2026

Expect mostly cloudy with light rain in Helena, Montana with a maximum temperature of 72°F, maximum UV of 5 (Moderate) and 5 hours of bright sunshine. There are 0-2 mm of rainfall expected with 62% chance of some rain and a moderate breeze of 15 mph from the south-west.