Helena weather live forecast

Today's maximum temperature in Helena is expected to be 77°F. Select a day from the live weather forecast for Helena, Montana, USA for more weather parameters.

Tuesday
4th Aug
77

48

14

7
Wednesday
5th Aug
86

50

15

7
Thursday
6th Aug
91

54

15

8
Friday
7th Aug
95

55

13

7
Saturday
8th Aug
91

57

11

7

5-day weather forecast updated at 04:00 on Tuesday 4th August 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 4th August 2026

Expect clear skies in Helena, Montana with a maximum temperature of 77°F, maximum UV of 7 (High) and 14 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 5 mph from the north-east.

77
°F maximum temperature
48
°F minimum temperature
clear skies
14
hours of sunshine
7
UV index (High)
0
mm of rainfall expected
0
no heat & humidity
5
mph wind from NE

Helena weather for Wednesday 5th August 2026

Expect clear skies in Helena, Montana with a maximum temperature of 86°F, low levels of heat & humidity, maximum UV of 7 (High) and 15 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 6 mph from the north-west.

86
°F maximum temperature
50
°F minimum temperature
clear skies
15
hours of sunshine
7
UV index (High)
0
mm of rainfall expected
L
low heat & humidity
6
mph wind from NW

Helena weather for Thursday 6th August 2026

Expect clear skies in Helena, Montana with a maximum temperature of 91°F, moderate levels of heat & humidity, maximum UV of 8 (Very High) and 15 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 11 mph from the north-west.

91
°F maximum temperature
54
°F minimum temperature
clear skies
15
hours of sunshine
8
UV index (Very High)
0
mm of rainfall expected
M
moderate heat & humidity
11
mph wind from NW

Helena weather for Friday 7th August 2026

Expect clear skies in Helena, Montana with a maximum temperature of 95°F, high levels of heat & humidity, maximum UV of 7 (High) and 13 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 12 mph from the north-west.

95
°F maximum temperature
55
°F minimum temperature
clear skies
13
hours of sunshine
7
UV index (High)
0
mm of rainfall expected
H
high heat & humidity
12
mph wind from NW

Helena weather for Saturday 8th August 2026

Expect scattered clouds in Helena, Montana with a maximum temperature of 91°F, moderate levels of heat & humidity, maximum UV of 7 (High) and 11 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 12 mph from the north-west.