West Yellowstone weather live forecast

Today's maximum temperature in West Yellowstone is expected to be 8°C. Select a day from the live weather forecast for West Yellowstone, Montana, USA for more weather parameters.

Sunday
17th May
8

-5

2

7
Monday
18th May
9

-5

8

4
Tuesday
19th May
12

-8

2

8
Wednesday
20th May
13

-2

2

6
Thursday
21st May
16

-6

6

8

5-day weather forecast updated at 04:02 on Sunday 17th May 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 Sunday 17th May 2026

Expect broken clouds in West Yellowstone, Montana with a maximum temperature of 8°C, maximum UV of 7 (High) and 2 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 22 kph from the north.

8
°C maximum temperature
-5
°C minimum temperature
broken clouds
2
hours of sunshine
7
UV index (High)
0
mm of rainfall expected
5
°C wind chill
22
kph wind from N

West Yellowstone weather for Monday 18th May 2026

Expect broken clouds in West Yellowstone, Montana with a maximum temperature of 9°C, maximum UV of 4 (Moderate) and 8 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 24 kph from the north.

9
°C maximum temperature
-5
°C minimum temperature
broken clouds
8
hours of sunshine
4
UV index (Moderate)
0
mm of rainfall expected
5
°C wind chill
24
kph wind from N

West Yellowstone weather for Tuesday 19th May 2026

Expect broken clouds in West Yellowstone, Montana with a maximum temperature of 12°C, maximum UV of 8 (Very High) and 2 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 13 kph from the south-west.

12
°C maximum temperature
-8
°C minimum temperature
broken clouds
2
hours of sunshine
8
UV index (Very High)
0
mm of rainfall expected
12
°C wind chill
13
kph wind from SW

West Yellowstone weather for Wednesday 20th May 2026

Expect broken clouds in West Yellowstone, Montana with a maximum temperature of 13°C, maximum UV of 6 (High) and 2 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 19 kph from the west.

13
°C maximum temperature
-2
°C minimum temperature
broken clouds
2
hours of sunshine
6
UV index (High)
0
mm of rainfall expected
0
no heat & humidity
19
kph wind from W

West Yellowstone weather for Thursday 21st May 2026

Expect sunshine and showers in West Yellowstone, Montana with a maximum temperature of 16°C, maximum UV of 8 (Very High) and 6 hours of bright sunshine. There are 0-2 mm of rainfall expected with 25% chance of some rain and a gentle breeze of 18 kph from the north-west.