Mercer Island weather in May 2026
Mon
Tue
Wed
Thu
Fri
Sat
Sun
26 April
+16°+9°
27 April
+15°+8°
28 April
+16°+8°
29 April
+16°+8°
30 April
+16°+7°
1 May
+18°+9°
2 May
+17°+9°
3 May
+17°+8°
4 May
+16°+9°
5 May
+17°+8°
6 May
+18°+8°
7 May
+19°+9°
8 May
+19°+9°
9 May
+19°+9°
10 May
+19°+10°
11 May
+20°+10°
12 May
+20°+10°
13 May
+20°+11°
14 May
+20°+11°
15 May
+19°+11°
16 May
+18°+11°
17 May
+18°+11°
18 May
+18°+10°
19 May
+18°+10°
20 May
+18°+11°
21 May
+18°+10°
22 May
+17°+11°
23 May
+18°+10°
24 May
+18°+11°
25 May
+18°+11°
26 May
+19°+11°
27 May
+19°+11°
28 May
+18°+11°
29 May
+19°+10°
30 May
+19°+12°
Forecast in other regions
New York
+24°
Los Angeles
+22°
Chicago
+23°
Houston
+27°
Queens
+23°
Phoenix
+39°
Philadelphia
+24°
San Antonio
+26°
San Diego
+21°
The Bronx
+23°
Dallas
+28°
San Jose
+20°
Austin
+26°
Detroit
+23°
Jacksonville
+28°
Fort Worth
+26°
Columbus
+23°
Indianapolis
+22°
Charlotte
+24°
San Francisco
+15°
