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
12th Aug
27

10

3

7
Thursday
13th Aug
21

6

5

4
Friday
14th Aug
21

6

3

4
Saturday
15th Aug
22

4

6

7
Sunday
16th Aug
25

4

7

7

5-day weather forecast updated at 04:03 on Wednesday 12th 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 12th August 2026

Expect isolated thunderstorms in West Yellowstone, Montana with a maximum temperature of 27°C, maximum UV of 7 (High) and 3 hours of bright sunshine. There are 0-2 mm of rainfall expected with 46% chance of some rain and a gentle breeze of 16 kph from the south-west.

27
°C maximum temperature
10
°C minimum temperature
isolated thunderstorms
3
hours of sunshine
7
UV index (High)
46
% chance of some rain
<2
mm of rainfall expected
27
°C wind chill
16
kph wind from SW

West Yellowstone weather for Thursday 13th August 2026

Expect isolated thunderstorms in West Yellowstone, Montana with a maximum temperature of 21°C, maximum UV of 4 (Moderate) and 5 hours of bright sunshine. There are 2-5 mm of rainfall expected with 79% chance of some rain and a gentle breeze of 13 kph from the south-west.

21
°C maximum temperature
6
°C minimum temperature
isolated thunderstorms
5
hours of sunshine
4
UV index (Moderate)
79
% chance of some rain
<5
mm of rainfall expected
21
°C wind chill
13
kph wind from SW

West Yellowstone weather for Friday 14th August 2026

Expect isolated thunderstorms in West Yellowstone, Montana with a maximum temperature of 21°C, maximum UV of 4 (Moderate) and 3 hours of bright sunshine. There are 2-5 mm of rainfall expected with 82% chance of some rain and a light breeze of 11 kph from the south-west.

21
°C maximum temperature
6
°C minimum temperature
isolated thunderstorms
3
hours of sunshine
4
UV index (Moderate)
82
% chance of some rain
<5
mm of rainfall expected
21
°C wind chill
11
kph wind from SW

West Yellowstone weather for Saturday 15th August 2026

Expect isolated thunderstorms in West Yellowstone, Montana with a maximum temperature of 22°C, maximum UV of 7 (High) and 6 hours of bright sunshine. There are 2-5 mm of rainfall expected with 64% chance of some rain and a light breeze of 12 kph from the south-west.

22
°C maximum temperature
4
°C minimum temperature
isolated thunderstorms
6
hours of sunshine
7
UV index (High)
64
% chance of some rain
<5
mm of rainfall expected
22
°C wind chill
12
kph wind from SW

West Yellowstone weather for Sunday 16th August 2026

Expect broken clouds in West Yellowstone, Montana with a maximum temperature of 25°C, maximum UV of 7 (High) and 7 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 13 kph from the south-west.