Diablo Lake weather live forecast

Today's maximum temperature in Diablo Lake is expected to be 30°C. Select a day from the live weather forecast for Diablo Lake, Washington State, USA for more weather parameters.

Monday
17th Aug
30

17

12

4
Tuesday
18th Aug
28

18

9

6
Wednesday
19th Aug
29

17

9

5
Thursday
20th Aug
32

17

11

6
Friday
21st Aug
31

19

4

5

5-day weather forecast updated at 04:03 on Tuesday 18th August 2026 GMT

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The 5-day weather forecast for Washington State (Diablo Lake) is provided by the Swiss meteorological agency, meteoblue. Find out more about our data sources.

Diablo Lake weather forecast by day

Below are the detailed weather forecasts for Diablo Lake for the next 5 days.

Diablo Lake weather for Monday 17th August 2026

Expect scattered clouds in Diablo Lake, Washington State with a maximum temperature of 30°C, moderate levels of heat & humidity, maximum UV of 4 (Moderate) and 12 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 14 kph from the south-west.

30
°C maximum temperature
17
°C minimum temperature
scattered clouds
12
hours of sunshine
4
UV index (Moderate)
0
mm of rainfall expected
M
moderate heat & humidity
14
kph wind from SW

Diablo Lake weather for Tuesday 18th August 2026

Expect broken clouds in Diablo Lake, Washington State with a maximum temperature of 28°C, low levels of heat & humidity, maximum UV of 6 (High) and 9 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 16 kph from the south-west.

28
°C maximum temperature
18
°C minimum temperature
broken clouds
9
hours of sunshine
6
UV index (High)
0
mm of rainfall expected
L
low heat & humidity
16
kph wind from SW

Diablo Lake weather for Wednesday 19th August 2026

Expect broken clouds in Diablo Lake, Washington State with a maximum temperature of 29°C, low levels of heat & humidity, maximum UV of 5 (Moderate) and 9 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 13 kph from the west.

29
°C maximum temperature
17
°C minimum temperature
broken clouds
9
hours of sunshine
5
UV index (Moderate)
0
mm of rainfall expected
L
low heat & humidity
13
kph wind from W

Diablo Lake weather for Thursday 20th August 2026

Expect scattered clouds in Diablo Lake, Washington State with a maximum temperature of 32°C, moderate levels of heat & humidity, maximum UV of 6 (High) and 11 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 11 kph from the south-west.

32
°C maximum temperature
17
°C minimum temperature
scattered clouds
11
hours of sunshine
6
UV index (High)
0
mm of rainfall expected
M
moderate heat & humidity
11
kph wind from SW

Diablo Lake weather for Friday 21st August 2026

Expect mostly cloudy with light rain in Diablo Lake, Washington State with a maximum temperature of 31°C, moderate levels of heat & humidity, maximum UV of 5 (Moderate) and 4 hours of bright sunshine. There are 0-2 mm of rainfall expected with 26% chance of some rain and a light breeze of 10 kph from the west.