West Yellowstone weather live forecast

Today's maximum temperature in West Yellowstone is expected to be 16°C. Select a day from the live weather forecast for West Yellowstone, Montana, USA for more weather parameters.

Monday
28th Sep
16

3

4

4
Tuesday
29th Sep
17

-1

9

6
Wednesday
30th Sep
17

1

6

6
Thursday
1st Oct
17

-2

12

6
Friday
2nd Oct
18

-1

10

5

5-day weather forecast updated at 04:03 on Monday 28th September 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 Monday 28th September 2026

Expect isolated thunderstorms in West Yellowstone, Montana with a maximum temperature of 16°C, maximum UV of 4 (Moderate) and 4 hours of bright sunshine. There are 2-5 mm of rainfall expected with 69% chance of some rain and a light breeze of 8 kph from the south-west.

16
°C maximum temperature
3
°C minimum temperature
isolated thunderstorms
4
hours of sunshine
4
UV index (Moderate)
69
% chance of some rain
<5
mm of rainfall expected
16
°C wind chill
8
kph wind from SW

West Yellowstone weather for Tuesday 29th September 2026

Expect fog in low lying areas in West Yellowstone, Montana with a maximum temperature of 17°C, maximum UV of 6 (High) and 9 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 10 kph from the south-west.

17
°C maximum temperature
-1
°C minimum temperature
fog in low lying areas
9
hours of sunshine
6
UV index (High)
0
mm of rainfall expected
17
°C wind chill
10
kph wind from SW

West Yellowstone weather for Wednesday 30th September 2026

Expect broken clouds in West Yellowstone, Montana with a maximum temperature of 17°C, maximum UV of 6 (High) and 6 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 12 kph from the west.

17
°C maximum temperature
1
°C minimum temperature
broken clouds
6
hours of sunshine
6
UV index (High)
0
mm of rainfall expected
0
no heat & humidity
12
kph wind from W

West Yellowstone weather for Thursday 1st October 2026

Expect scattered clouds in West Yellowstone, Montana with a maximum temperature of 17°C, maximum UV of 6 (High) and 12 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 12 kph from the south-west.

17
°C maximum temperature
-2
°C minimum temperature
scattered clouds
12
hours of sunshine
6
UV index (High)
0
mm of rainfall expected
0
no heat & humidity
12
kph wind from SW

West Yellowstone weather for Friday 2nd October 2026

Expect scattered clouds in West Yellowstone, Montana with a maximum temperature of 18°C, maximum UV of 5 (Moderate) and 10 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 15 kph from the south-west.