West Yellowstone weather live forecast

Today's maximum temperature in West Yellowstone is expected to be 19°C. Select a day from the live weather forecast for West Yellowstone, Montana, USA for more weather parameters.

Tuesday
26th May
19

3

5

UV5
Wednesday
27th May
22

3

8

UV7
Thursday
28th May
25

4

11

UV9
Friday
29th May
22

3

11

UV9
Saturday
30th May
16

4

7

UV6

5-day weather forecast updated at 04:03 on Tuesday 26th 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 Tuesday 26th May 2026

Expect isolated thunderstorms in West Yellowstone, Montana with a maximum temperature of 19°C, maximum UV of 5 (Moderate) and 5 hours of bright sunshine. There are 2-5 mm of rainfall expected with 96% chance of some rain and a light breeze of 12 kph from the south.

19
°C maximum temperature
3
°C minimum temperature
isolated thunderstorms
5
hours of sunshine
UV5
UV index (Moderate)
96
% chance of some rain
<5
mm of rainfall expected
19
°C wind chill
12
kph wind from S

West Yellowstone weather for Wednesday 27th May 2026

Expect isolated thunderstorms in West Yellowstone, Montana with a maximum temperature of 22°C, maximum UV of 7 (High) and 8 hours of bright sunshine. There are 0-2 mm of rainfall expected with 30% chance of some rain and a gentle breeze of 14 kph from the south-east.

22
°C maximum temperature
3
°C minimum temperature
isolated thunderstorms
8
hours of sunshine
UV7
UV index (High)
30
% chance of some rain
<2
mm of rainfall expected
0
no heat & humidity
14
kph wind from SE

West Yellowstone weather for Thursday 28th May 2026

Expect scattered clouds in West Yellowstone, Montana with a maximum temperature of 25°C, maximum UV of 9 (Very High) and 11 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 17 kph from the south.

25
°C maximum temperature
4
°C minimum temperature
scattered clouds
11
hours of sunshine
UV9
UV index (Very High)
0
mm of rainfall expected
25
°C wind chill
17
kph wind from S

West Yellowstone weather for Friday 29th May 2026

Expect scattered clouds in West Yellowstone, Montana with a maximum temperature of 22°C, maximum UV of 9 (Very High) and 11 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 16 kph from the south.

22
°C maximum temperature
3
°C minimum temperature
scattered clouds
11
hours of sunshine
UV9
UV index (Very High)
0
mm of rainfall expected
0
no heat & humidity
16
kph wind from S

West Yellowstone weather for Saturday 30th May 2026

Expect broken clouds in West Yellowstone, Montana with a maximum temperature of 16°C, maximum UV of 6 (High) and 7 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 14 kph from the south-west.