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August weather forecast in West Yellowstone

30 days Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

30 days Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Sun

Sunday

Mon

Monday

Tue

Tuesday

Wed

Wednesday

Thu

Thursday

Fri

Friday

Sat

Saturday

27 July, sun

	590 mmHg		52%
	3.8 m/s

27 July, Sunday. day, 24°; night, 8°; rain

28 July, mon

	591 mmHg		54%
	3.9 m/s

28 July, Monday. day, 23°; night, 8°; rain

29 July, tue

	591 mmHg		52%
	3.9 m/s

29 July, Tuesday. day, 24°; night, 8°; rain

30 July, wed

	591 mmHg		51%
	4.1 m/s

30 July, Wednesday. day, 24°; night, 8°; clear

31 July, thu

	591 mmHg		48%
	4.1 m/s

31 July, Thursday. day, 24°; night, 8°; clear

1 August, fri

	591 mmHg		50%
	3.8 m/s

1 August, Friday. day, 24°; night, 8°; clear

2 August, sat

	591 mmHg		49%
	4.1 m/s

2 August, Saturday. day, 24°; night, 9°; clear

3 August, sun

	590 mmHg		52%
	4.1 m/s

3 August, Sunday. day, 23°; night, 8°; overcast

4 August, mon

	590 mmHg		56%
	4.1 m/s

4 August, Monday. day, 23°; night, 7°; rain

5 August, tue

	590 mmHg		57%
	4.1 m/s

5 August, Tuesday. day, 23°; night, 7°; rain

6 August, wed

	590 mmHg		55%
	4.1 m/s

6 August, Wednesday. day, 22°; night, 7°; rain

7 August, thu

	590 mmHg		52%
	4.19 m/s

7 August, Thursday. day, 23°; night, 7°; clear

8 August, fri

	590 mmHg		52%
	4 m/s

8 August, Friday. day, 22°; night, 7°; rain

9 August, sat

	590 mmHg		52%
	3.8 m/s

9 August, Saturday. day, 22°; night, 7°; clear

10 August, sun

	590 mmHg		52%
	4.1 m/s

10 August, Sunday. day, 23°; night, 6°; clear

11 August, mon

	590 mmHg		49%
	4.19 m/s

11 August, Monday. day, 23°; night, 7°; clear

12 August, tue

	590 mmHg		48%
	4.1 m/s

12 August, Tuesday. day, 22°; night, 7°; clear

13 August, wed

	590 mmHg		52%
	4 m/s

13 August, Wednesday. day, 22°; night, 7°; partly cloudy

14 August, thu

	590 mmHg		52%
	4.1 m/s

14 August, Thursday. day, 22°; night, 7°; partly cloudy

15 August, fri

	590 mmHg		50%
	4 m/s

15 August, Friday. day, 23°; night, 7°; clear

16 August, sat

	590 mmHg		50%
	4.1 m/s

16 August, Saturday. day, 23°; night, 6°; clear

17 August, sun

	590 mmHg		50%
	4.19 m/s

17 August, Sunday. day, 23°; night, 7°; clear

18 August, mon

	589 mmHg		55%
	4.3 m/s

18 August, Monday. day, 22°; night, 7°; rain

19 August, tue

	589 mmHg		52%
	4.19 m/s

19 August, Tuesday. day, 22°; night, 7°; clear

20 August, wed

	589 mmHg		50%
	4.19 m/s

20 August, Wednesday. day, 22°; night, 6°; clear

21 August, thu

	589 mmHg		52%
	4.3 m/s

21 August, Thursday. day, 22°; night, 7°; rain

22 August, fri

	589 mmHg		54%
	4.4 m/s

22 August, Friday. day, 22°; night, 7°; rain

23 August, sat

	589 mmHg		54%
	4.4 m/s

23 August, Saturday. day, 21°; night, 7°; rain

24 August, sun

	589 mmHg		52%
	4.6 m/s

24 August, Sunday. day, 21°; night, 6°; clear

25 August, mon

	589 mmHg		51%
	4.19 m/s

25 August, Monday. day, 21°; night, 6°; clear

26 August, tue

	589 mmHg		51%
	4.1 m/s

26 August, Tuesday. day, 22°; night, 7°; clear

27 August, wed

	589 mmHg		52%
	4.1 m/s

27 August, Wednesday. day, 21°; night, 7°; partly cloudy

28 August, thu

	590 mmHg		52%
	4.1 m/s

28 August, Thursday. day, 22°; night, 6°; clear

29 August, fri

	589 mmHg		50%
	4.4 m/s

29 August, Friday. day, 22°; night, 6°; clear

30 August, sat

	588 mmHg		49%
	4.5 m/s

30 August, Saturday. day, 22°; night, 7°; clear

31 August, sun

	588 mmHg		52%
	4.4 m/s

31 August, Sunday. day, 20°; night, 6°; partly cloudy

1 September, mon

	588 mmHg		54%
	4.4 m/s

1 September, Monday. day, 20°; night, 5°; clear

2 September, tue

	589 mmHg		52%
	4.19 m/s

2 September, Tuesday. day, 21°; night, 6°; clear

3 September, wed

	589 mmHg		52%
	4 m/s

3 September, Wednesday. day, 20°; night, 6°; clear

4 September, thu

	589 mmHg		52%
	4.1 m/s

4 September, Thursday. day, 20°; night, 6°; clear

5 September, fri

	589 mmHg		54%
	4.3 m/s

5 September, Friday. day, 20°; night, 6°; clear

6 September, sat

	589 mmHg		58%
	4.1 m/s

6 September, Saturday. day, 19°; night, 5°; rain

Average data for 10 years

West Yellowstone August

18

sunny days

8

days with precipitation

1

cloudy day

18 sunny days; 8 days with precipitation; 1 cloudy day;

52

%

air humidity

2.2

m/s

WindS

38

mm of precipitation

(6% of annual average)

air humidity 52%; 38 millimeters of precipitation (6% of annual average); Wind southerly 2.2 Meters per second

Weather graphs for August

TemperaturePrecipitation chance, %Humidity, %Wind, m/sPressure, mmHg

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S

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S

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S

S

S

S

1

Average data for 10 years

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31

Daytime temperature

Night-time temperature

Cities near you

Salt Lake City
Bozeman
Billings
Cody
Jackson
Missoula
Helena
Woods Cross
Idaho Falls

Cities with similar weather in August

Oslo
Altay
Mexico
Ulan Bator
Looe
Ridder
Vanadzor
Addis Ababa
Liverpool

The weather forecast for August 2025 is based on historical data from the past 10 years.

In August, the weather in West Yellowstone is typically warm. Average daily high temperature in August is about 22 degrees above zero. On average, West Yellowstone has 18 sunny, 8 rainy, 4 partly cloudy, and 1 cloudy day in August. The rains are usually light. August as well as July is considered the most comfortable time to visit West Yellowstone.

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