West Yellowstone weather live forecast

Today's maximum temperature in West Yellowstone is expected to be 20°C. Select a day from the live weather forecast for West Yellowstone, Montana, USA for more weather parameters.

Friday
14th Aug
20

6

4

5
Saturday
15th Aug
22

5

5

7
Sunday
16th Aug
24

3

6

7
Monday
17th Aug
25

6

8

8
Tuesday
18th Aug
23

7

4

7

5-day weather forecast updated at 04:03 on Friday 14th 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 Friday 14th August 2026

Expect isolated thunderstorms in West Yellowstone, Montana with a maximum temperature of 20°C, maximum UV of 5 (Moderate) and 4 hours of bright sunshine. There are 2-5 mm of rainfall expected with 66% chance of some rain and a light breeze of 12 kph from the south-west.

20
°C maximum temperature
6
°C minimum temperature
isolated thunderstorms
4
hours of sunshine
5
UV index (Moderate)
66
% chance of some rain
<5
mm of rainfall expected
20
°C wind chill
12
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 5 hours of bright sunshine. There are 2-5 mm of rainfall expected with 68% chance of some rain and a light breeze of 10 kph from the south-west.

22
°C maximum temperature
5
°C minimum temperature
isolated thunderstorms
5
hours of sunshine
7
UV index (High)
68
% chance of some rain
<5
mm of rainfall expected
22
°C wind chill
10
kph wind from SW

West Yellowstone weather for Sunday 16th August 2026

Expect isolated thunderstorms in West Yellowstone, Montana with a maximum temperature of 24°C, maximum UV of 7 (High) and 6 hours of bright sunshine. There are 0-2 mm of rainfall expected with 19% chance of some rain and a gentle breeze of 13 kph from the south-west.

24
°C maximum temperature
3
°C minimum temperature
isolated thunderstorms
6
hours of sunshine
7
UV index (High)
19
% chance of some rain
<2
mm of rainfall expected
0
no heat & humidity
13
kph wind from SW

West Yellowstone weather for Monday 17th August 2026

Expect isolated thunderstorms in West Yellowstone, Montana with a maximum temperature of 25°C, maximum UV of 8 (Very High) and 8 hours of bright sunshine. There are 0-2 mm of rainfall expected with 52% chance of some rain and a light breeze of 12 kph from the south-west.

25
°C maximum temperature
6
°C minimum temperature
isolated thunderstorms
8
hours of sunshine
8
UV index (Very High)
52
% chance of some rain
<2
mm of rainfall expected
0
no heat & humidity
12
kph wind from SW

West Yellowstone weather for Tuesday 18th August 2026

Expect isolated thunderstorms in West Yellowstone, Montana with a maximum temperature of 23°C, maximum UV of 7 (High) and 4 hours of bright sunshine. There are 2-5 mm of rainfall expected with 68% chance of some rain and a gentle breeze of 14 kph from the south-west.