West Yellowstone weather live forecast

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

Tuesday
4th Aug
77

36

11

8
Wednesday
5th Aug
81

37

14

8
Thursday
6th Aug
86

39

14

9
Friday
7th Aug
88

43

8

8
Saturday
8th Aug
88

46

10

8

5-day weather forecast updated at 04:03 on Tuesday 4th August 2026 GMT

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The 5-day weather forecast for Montana (West Yellowstone) is provided by the Swiss meteorological agency, meteoblue. Find out more about our data sources.

West Yellowstone weather forecast by day

Below are the detailed weather forecasts for West Yellowstone for the next 5 days.

West Yellowstone weather for Tuesday 4th August 2026

Expect scattered clouds in West Yellowstone, Montana with a maximum temperature of 77°F, maximum UV of 8 (Very High) and 11 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 7 mph from the west.

77
°F maximum temperature
36
°F minimum temperature
scattered clouds
11
hours of sunshine
8
UV index (Very High)
0
mm of rainfall expected
77
°F wind chill
7
mph wind from W

West Yellowstone weather for Wednesday 5th August 2026

Expect clear skies in West Yellowstone, Montana with a maximum temperature of 81°F, maximum UV of 8 (Very High) and 14 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 8 mph from the south-west.

81
°F maximum temperature
37
°F minimum temperature
clear skies
14
hours of sunshine
8
UV index (Very High)
0
mm of rainfall expected
81
°F wind chill
8
mph wind from SW

West Yellowstone weather for Thursday 6th August 2026

Expect clear skies in West Yellowstone, Montana with a maximum temperature of 86°F, low levels of heat & humidity, maximum UV of 9 (Very High) and 14 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 9 mph from the west.

86
°F maximum temperature
39
°F minimum temperature
clear skies
14
hours of sunshine
9
UV index (Very High)
0
mm of rainfall expected
L
low heat & humidity
9
mph wind from W

West Yellowstone weather for Friday 7th August 2026

Expect scattered clouds in West Yellowstone, Montana with a maximum temperature of 88°F, moderate levels of heat & humidity, maximum UV of 8 (Very High) and 8 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 10 mph from the south-west.

88
°F maximum temperature
43
°F minimum temperature
scattered clouds
8
hours of sunshine
8
UV index (Very High)
0
mm of rainfall expected
M
moderate heat & humidity
10
mph wind from SW

West Yellowstone weather for Saturday 8th August 2026

Expect scattered clouds in West Yellowstone, Montana with a maximum temperature of 88°F, moderate levels of heat & humidity, maximum UV of 8 (Very High) and 10 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 12 mph from the west.