This page presents a long range weather forecast for Seattle in May as well as other months. You can quickly get a brief overview of the weather to expect in May on a daily basis.
The Seattle extended forecast data provided is based on the average values of previous years.
Long range weather forecast
Select a month and click on a day for more information:
Wednesday
May 1
16° / 6°
Thursday
May 2
15° / 6°
Friday
May 3
20° / 5°
Saturday
May 4
14° / 7°
Sunday
May 5
9° / 7°
Monday
May 6
11° / 7°
Tuesday
May 7
15° / 4°
Wednesday
May 8
17° / 6°
Thursday
May 9
19° / 5°
Friday
May 10
24° / 8°
Saturday
May 11
25° / 9°
Sunday
May 12
18° / 7°
Monday
May 13
12° / 6°
Tuesday
May 14
13° / 6°
Wednesday
May 15
18° / 4°
Thursday
May 16
16° / 7°
Friday
May 17
21° / 10°
Saturday
May 18
22° / 9°
Sunday
May 19
19° / 9°
Monday
May 20
18° / 7°
Tuesday
May 21
18° / 8°
Wednesday
May 22
20° / 8°
Thursday
May 23
19° / 10°
Friday
May 24
18° / 8°
Saturday
May 25
17° / 9°
Sunday
May 26
23° / 10°
Monday
May 27
21° / 10°
Tuesday
May 28
21° / 9°
Wednesday
May 29
22° / 9°
Thursday
May 30
22° / 9°
Friday
May 31
23° / 9°
Seattle 30 days weather forecast
Check out our estimated 30 days weather forecast for Seattle, this data is based on the average weather in Seattle in the last few years.
For a more accurate and detailed forecast, check out the 14 day weather for Seattle next to the desired date.