Helena weather live forecast

Today's maximum temperature in Helena is expected to be 84°F. Select a day from the live weather forecast for Helena, Montana, USA for more weather parameters.

Wednesday
5th Aug
84

50

14

7
Thursday
6th Aug
90

54

15

8
Friday
7th Aug
93

55

15

8
Saturday
8th Aug
95

57

14

8
Sunday
9th Aug
91

59

14

7

5-day weather forecast updated at 04:00 on Wednesday 5th August 2026 GMT

More about Helena

Helena by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Recommended for Montana

Intrepid Travel discount code: £200 off small group tours

Discount Code

Save EXTRA £200 on select small group tours worldwide
Min spend of £1,500 per person. T&Cs apply
Travel before 30th June 2027 (inclusive)

Show discount code

******011

Redeem Intrepid Travel discount code >>

Expires at 23:59 on Monday 31st Aug 2026 · View all Intrepid Travel offers

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 Wednesday 5th August 2026

Expect clear skies in Helena, Montana with a maximum temperature of 84°F, low levels of heat & humidity, maximum UV of 7 (High) and 14 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 7 mph from the south-west.

84
°F maximum temperature
50
°F minimum temperature
clear skies
14
hours of sunshine
7
UV index (High)
0
mm of rainfall expected
L
low heat & humidity
7
mph wind from SW

Helena weather for Thursday 6th August 2026

Expect clear skies in Helena, Montana with a maximum temperature of 90°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 8 mph from the north-west.

90
°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
8
mph wind from NW

Helena weather for Friday 7th August 2026

Expect clear skies in Helena, Montana with a maximum temperature of 93°F, high 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 moderate breeze of 12 mph from the north-west.

93
°F maximum temperature
55
°F minimum temperature
clear skies
15
hours of sunshine
8
UV index (Very High)
0
mm of rainfall expected
H
high heat & humidity
12
mph wind from NW

Helena weather for Saturday 8th August 2026

Expect clear skies in Helena, Montana with a maximum temperature of 95°F, high levels of heat & humidity, maximum UV of 8 (Very High) and 14 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 11 mph from the north-west.

95
°F maximum temperature
57
°F minimum temperature
clear skies
14
hours of sunshine
8
UV index (Very High)
0
mm of rainfall expected
H
high heat & humidity
11
mph wind from NW

Helena weather for Sunday 9th August 2026

Expect clear skies in Helena, Montana with a maximum temperature of 91°F, moderate levels of heat & humidity, maximum UV of 7 (High) and 14 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 11 mph from the north-west.