West Yellowstone weather live forecast

Today's maximum temperature in West Yellowstone is expected to be 27°C. Select a day from the live weather forecast for West Yellowstone, Montana, USA for more weather parameters.

Wednesday
26th Aug
27

10

8

7
Thursday
27th Aug
27

11

8

7
Friday
28th Aug
23

8

1

7
Saturday
29th Aug
21

8

5

7
Sunday
30th Aug
21

4

13

8

5-day weather forecast updated at 04:03 on Wednesday 26th 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 Wednesday 26th August 2026

Expect isolated thunderstorms in West Yellowstone, Montana with a maximum temperature of 27°C, low levels of heat & humidity, maximum UV of 7 (High) and 8 hours of bright sunshine. There are 0-2 mm of rainfall expected with 11% chance of some rain and a light breeze of 12 kph from the south-west.

27
°C maximum temperature
10
°C minimum temperature
isolated thunderstorms
8
hours of sunshine
7
UV index (High)
11
% chance of some rain
<2
mm of rainfall expected
L
low heat & humidity
12
kph wind from SW

West Yellowstone weather for Thursday 27th August 2026

Expect isolated thunderstorms in West Yellowstone, Montana with a maximum temperature of 27°C, low levels of heat & humidity, maximum UV of 7 (High) and 8 hours of bright sunshine. There are 0-2 mm of rainfall expected with 45% chance of some rain and a gentle breeze of 14 kph from the south-west.

27
°C maximum temperature
11
°C minimum temperature
isolated thunderstorms
8
hours of sunshine
7
UV index (High)
45
% chance of some rain
<2
mm of rainfall expected
L
low heat & humidity
14
kph wind from SW

West Yellowstone weather for Friday 28th August 2026

Expect broken clouds in West Yellowstone, Montana with a maximum temperature of 23°C, maximum UV of 7 (High) and 1 hour of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 15 kph from the south-west.

23
°C maximum temperature
8
°C minimum temperature
broken clouds
1
hour of sunshine
7
UV index (High)
0
mm of rainfall expected
23
°C wind chill
15
kph wind from SW

West Yellowstone weather for Saturday 29th August 2026

Expect isolated thunderstorms in West Yellowstone, Montana with a maximum temperature of 21°C, maximum UV of 7 (High) and 5 hours of bright sunshine. There are 5-10 mm of rainfall expected with 46% chance of some rain and a gentle breeze of 16 kph from the south-west.

21
°C maximum temperature
8
°C minimum temperature
isolated thunderstorms
5
hours of sunshine
7
UV index (High)
46
% chance of some rain
<10
mm of rainfall expected
21
°C wind chill
16
kph wind from SW

West Yellowstone weather for Sunday 30th August 2026

Expect isolated thunderstorms in West Yellowstone, Montana with a maximum temperature of 21°C, maximum UV of 8 (Very High) and 13 hours of bright sunshine. There are 0-2 mm of rainfall expected with 24% chance of some rain and a gentle breeze of 16 kph from the south-west.