Extended 10-day forecasts, Mercer Island (WA)
Hourly detail for the next 48 hours, six-hourly segments for the rest of the week.
This is the 10-day extended forecast for Mercer Island, the United States of America. The forecast is updated every three hours and displays the temperature, weather conditions, wind direction and speed, as well as the chance of precipitation.
Check out our July climate page to see if the current temperatures in Mercer Island is typical for this time of year.
Today · Saturday 18 Jul
Hour by hour
| Time | Weather | Temp | Precip | Humidity | Wind |
|---|---|---|---|---|---|
| 03:00 |
Partly cloudy
|
15°C (59°F) | 0 mm (0 in) | 87% | E 1 m/s (2 knots) |
| 04:00 |
Partly cloudy
|
15°C (59°F) | 0 mm (0 in) | 88% | SE 2 m/s (4 knots) |
| 05:00 |
Partly cloudy
|
15°C (59°F) | 0 mm (0 in) | 90% | SW 2 m/s (4 knots) |
| 06:00 |
Partly cloudy
|
15°C (59°F) | 0 mm (0 in) | 91% | SW 2 m/s (4 knots) |
| 07:00 |
Partly cloudy
|
15°C (59°F) | 0 mm (0 in) | 90% | SW 2 m/s (4 knots) |
| 08:00 |
Cloudy
|
16°C (61°F) | 0 mm (0 in) | 85% | SW 1 m/s (2 knots) |
| 09:00 |
Partly cloudy
|
17°C (63°F) | 0 mm (0 in) | 80% | SW 2 m/s (4 knots) |
| 10:00 |
Partly cloudy
|
18°C (64°F) | 0 mm (0 in) | 74% | W 2 m/s (4 knots) |
| 11:00 |
Mostly sunny
|
19°C (66°F) | 0 mm (0 in) | 70% | W 2 m/s (4 knots) |
| 12:00 |
Partly cloudy
|
20°C (68°F) | 0 mm (0 in) | 66% | W 2 m/s (4 knots) |
| 13:00 |
Partly cloudy
|
21°C (70°F) | 0 mm (0 in) | 60% | W 2 m/s (4 knots) |
| 14:00 |
Mostly sunny
|
22°C (72°F) | 0 mm (0 in) | 55% | W 2 m/s (4 knots) |
| 15:00 |
Mostly sunny
|
23°C (73°F) | 0 mm (0 in) | 51% | NW 2 m/s (4 knots) |
| 16:00 |
Clear skies
|
23°C (73°F) | 0 mm (0 in) | 49% | NW 2 m/s (4 knots) |
| 17:00 |
Clear skies
|
23°C (73°F) | 0 mm (0 in) | 46% | NW 3 m/s (6 knots) |
| 18:00 |
Clear skies
|
23°C (73°F) | 0 mm (0 in) | 45% | NW 3 m/s (6 knots) |
| 19:00 |
Mostly sunny
|
22°C (72°F) | 0 mm (0 in) | 49% | N 4 m/s (8 knots) |
| 20:00 |
Clear skies
|
21°C (70°F) | 0 mm (0 in) | 56% | N 4 m/s (8 knots) |
| 21:00 |
Clear skies
|
19°C (66°F) | 0 mm (0 in) | 66% | N 4 m/s (8 knots) |
| 22:00 |
Clear skies
|
18°C (64°F) | 0 mm (0 in) | 73% | NE 3 m/s (6 knots) |
| 23:00 |
Clear skies
|
16°C (61°F) | 0 mm (0 in) | 81% | NE 3 m/s (6 knots) |
03:00
Partly cloudy
87% · E 1 m/s (2 knots)
15°C (59°F)
0 mm (0 in)
04:00
Partly cloudy
88% · SE 2 m/s (4 knots)
15°C (59°F)
0 mm (0 in)
05:00
Partly cloudy
90% · SW 2 m/s (4 knots)
15°C (59°F)
0 mm (0 in)
06:00
Partly cloudy
91% · SW 2 m/s (4 knots)
15°C (59°F)
0 mm (0 in)
07:00
Partly cloudy
90% · SW 2 m/s (4 knots)
15°C (59°F)
0 mm (0 in)
08:00
Cloudy
85% · SW 1 m/s (2 knots)
16°C (61°F)
0 mm (0 in)
09:00
Partly cloudy
80% · SW 2 m/s (4 knots)
17°C (63°F)
0 mm (0 in)
10:00
Partly cloudy
74% · W 2 m/s (4 knots)
18°C (64°F)
0 mm (0 in)
11:00
Mostly sunny
70% · W 2 m/s (4 knots)
19°C (66°F)
0 mm (0 in)
12:00
Partly cloudy
66% · W 2 m/s (4 knots)
20°C (68°F)
0 mm (0 in)
13:00
Partly cloudy
60% · W 2 m/s (4 knots)
21°C (70°F)
0 mm (0 in)
14:00
Mostly sunny
55% · W 2 m/s (4 knots)
22°C (72°F)
0 mm (0 in)
15:00
Mostly sunny
51% · NW 2 m/s (4 knots)
23°C (73°F)
0 mm (0 in)
16:00
Clear skies
49% · NW 2 m/s (4 knots)
23°C (73°F)
0 mm (0 in)
17:00
Clear skies
46% · NW 3 m/s (6 knots)
23°C (73°F)
0 mm (0 in)
18:00
Clear skies
45% · NW 3 m/s (6 knots)
23°C (73°F)
0 mm (0 in)
19:00
Mostly sunny
49% · N 4 m/s (8 knots)
22°C (72°F)
0 mm (0 in)
20:00
Clear skies
56% · N 4 m/s (8 knots)
21°C (70°F)
0 mm (0 in)
21:00
Clear skies
66% · N 4 m/s (8 knots)
19°C (66°F)
0 mm (0 in)
22:00
Clear skies
73% · NE 3 m/s (6 knots)
18°C (64°F)
0 mm (0 in)
23:00
Clear skies
81% · NE 3 m/s (6 knots)
16°C (61°F)
0 mm (0 in)
Tomorrow · Sunday 19 Jul
Hour by hour
| Time | Weather | Temp | Precip | Humidity | Wind |
|---|---|---|---|---|---|
| 00:00 |
Clear skies
|
16°C (61°F) | 0 mm (0 in) | 86% | NE 3 m/s (6 knots) |
| 01:00 |
Clear skies
|
15°C (59°F) | 0 mm (0 in) | 88% | NE 3 m/s (6 knots) |
| 02:00 |
Clear skies
|
15°C (59°F) | 0 mm (0 in) | 89% | NE 3 m/s (6 knots) |
| 03:00 |
Clear skies
|
14°C (57°F) | 0 mm (0 in) | 89% | NE 2 m/s (4 knots) |
| 04:00 |
Clear skies
|
14°C (57°F) | 0 mm (0 in) | 89% | NE 2 m/s (4 knots) |
| 05:00 |
Clear skies
|
14°C (57°F) | 0 mm (0 in) | 90% | NE 2 m/s (4 knots) |
| 06:00 |
Clear skies
|
14°C (57°F) | 0 mm (0 in) | 91% | NE 2 m/s (4 knots) |
| 07:00 |
Clear skies
|
15°C (59°F) | 0 mm (0 in) | 88% | NE 2 m/s (4 knots) |
| 08:00 |
Mostly sunny
|
16°C (61°F) | 0 mm (0 in) | 83% | N 2 m/s (4 knots) |
| 09:00 |
Partly cloudy
|
18°C (64°F) | 0 mm (0 in) | 73% | N 2 m/s (4 knots) |
| 10:00 |
Mostly sunny
|
19°C (66°F) | 0 mm (0 in) | 69% | NW 2 m/s (4 knots) |
| 11:00 |
Clear skies
|
20°C (68°F) | 0 mm (0 in) | 67% | NW 2 m/s (4 knots) |
| 12:00 |
Clear skies
|
21°C (70°F) | 0 mm (0 in) | 61% | NW 3 m/s (6 knots) |
| 13:00 |
Clear skies
|
23°C (73°F) | 0 mm (0 in) | 56% | NW 3 m/s (6 knots) |
| 14:00 |
Clear skies
|
24°C (75°F) | 0 mm (0 in) | 52% | NW 3 m/s (6 knots) |
| 15:00 |
Clear skies
|
24°C (75°F) | 0 mm (0 in) | 50% | NW 4 m/s (8 knots) |
| 16:00 |
Clear skies
|
24°C (75°F) | 0 mm (0 in) | 49% | NW 4 m/s (8 knots) |
| 17:00 |
Clear skies
|
24°C (75°F) | 0 mm (0 in) | 50% | NW 4 m/s (8 knots) |
| 18:00 |
Clear skies
|
23°C (73°F) | 0 mm (0 in) | 52% | N 4 m/s (8 knots) |
| 19:00 |
Clear skies
|
23°C (73°F) | 0 mm (0 in) | 56% | N 4 m/s (8 knots) |
| 20:00 |
Clear skies
|
22°C (72°F) | 0 mm (0 in) | 60% | N 3 m/s (6 knots) |
| 21:00 |
Clear skies
|
20°C (68°F) | 0 mm (0 in) | 67% | N 3 m/s (6 knots) |
| 22:00 |
Clear skies
|
19°C (66°F) | 0 mm (0 in) | 71% | N 3 m/s (6 knots) |
| 23:00 |
Partly cloudy
|
18°C (64°F) | 0 mm (0 in) | 75% | N 3 m/s (6 knots) |
00:00
Clear skies
86% · NE 3 m/s (6 knots)
16°C (61°F)
0 mm (0 in)
01:00
Clear skies
88% · NE 3 m/s (6 knots)
15°C (59°F)
0 mm (0 in)
02:00
Clear skies
89% · NE 3 m/s (6 knots)
15°C (59°F)
0 mm (0 in)
03:00
Clear skies
89% · NE 2 m/s (4 knots)
14°C (57°F)
0 mm (0 in)
04:00
Clear skies
89% · NE 2 m/s (4 knots)
14°C (57°F)
0 mm (0 in)
05:00
Clear skies
90% · NE 2 m/s (4 knots)
14°C (57°F)
0 mm (0 in)
06:00
Clear skies
91% · NE 2 m/s (4 knots)
14°C (57°F)
0 mm (0 in)
07:00
Clear skies
88% · NE 2 m/s (4 knots)
15°C (59°F)
0 mm (0 in)
08:00
Mostly sunny
83% · N 2 m/s (4 knots)
16°C (61°F)
0 mm (0 in)
09:00
Partly cloudy
73% · N 2 m/s (4 knots)
18°C (64°F)
0 mm (0 in)
10:00
Mostly sunny
69% · NW 2 m/s (4 knots)
19°C (66°F)
0 mm (0 in)
11:00
Clear skies
67% · NW 2 m/s (4 knots)
20°C (68°F)
0 mm (0 in)
12:00
Clear skies
61% · NW 3 m/s (6 knots)
21°C (70°F)
0 mm (0 in)
13:00
Clear skies
56% · NW 3 m/s (6 knots)
23°C (73°F)
0 mm (0 in)
14:00
Clear skies
52% · NW 3 m/s (6 knots)
24°C (75°F)
0 mm (0 in)
15:00
Clear skies
50% · NW 4 m/s (8 knots)
24°C (75°F)
0 mm (0 in)
16:00
Clear skies
49% · NW 4 m/s (8 knots)
24°C (75°F)
0 mm (0 in)
17:00
Clear skies
50% · NW 4 m/s (8 knots)
24°C (75°F)
0 mm (0 in)
18:00
Clear skies
52% · N 4 m/s (8 knots)
23°C (73°F)
0 mm (0 in)
19:00
Clear skies
56% · N 4 m/s (8 knots)
23°C (73°F)
0 mm (0 in)
20:00
Clear skies
60% · N 3 m/s (6 knots)
22°C (72°F)
0 mm (0 in)
21:00
Clear skies
67% · N 3 m/s (6 knots)
20°C (68°F)
0 mm (0 in)
22:00
Clear skies
71% · N 3 m/s (6 knots)
19°C (66°F)
0 mm (0 in)
23:00
Partly cloudy
75% · N 3 m/s (6 knots)
18°C (64°F)
0 mm (0 in)
Next 7 days
Six-hour segments
Day
Night
23:00
Morning
05:00
Afternoon
11:00
Evening
17:00
Monday
20 Jul
18°C (64°F)
0 mm (0 in)
Partly cloudy
75% · N 3 m/s (6 knots)
15°C (59°F)
0 mm (0 in)
Partly cloudy
86% · NE 3 m/s (6 knots)
21°C (70°F)
0 mm (0 in)
Partly cloudy
64% · NW 3 m/s (6 knots)
27°C (81°F)
0 mm (0 in)
Partly cloudy
46% · NW 3 m/s (6 knots)
Mon
20 Jul
night
18°C (64°F)
0 mm (0 in)
Partly cloudy
75%
3 m/s (6 knots)
morning
15°C (59°F)
0 mm (0 in)
Partly cloudy
86%
3 m/s (6 knots)
afternoon
21°C (70°F)
0 mm (0 in)
Partly cloudy
64%
3 m/s (6 knots)
evening
27°C (81°F)
0 mm (0 in)
Partly cloudy
46%
3 m/s (6 knots)
Tuesday
21 Jul
20°C (68°F)
0 mm (0 in)
Mostly clear
77% · NE 1 m/s (2 knots)
15°C (59°F)
0 mm (0 in)
Cloudy
100% · SE 1 m/s (2 knots)
24°C (75°F)
0 mm (0 in)
Partly cloudy
61% · W 1 m/s (2 knots)
30°C (86°F)
0 mm (0 in)
Partly cloudy
31% · NW 2 m/s (4 knots)
Tue
21 Jul
night
20°C (68°F)
0 mm (0 in)
Mostly clear
77%
1 m/s (2 knots)
morning
15°C (59°F)
0 mm (0 in)
Cloudy
100%
1 m/s (2 knots)
afternoon
24°C (75°F)
0 mm (0 in)
Partly cloudy
61%
1 m/s (2 knots)
evening
30°C (86°F)
0 mm (0 in)
Partly cloudy
31%
2 m/s (4 knots)
Wednesday
22 Jul
22°C (72°F)
0 mm (0 in)
Partly cloudy
66% · N 2 m/s (4 knots)
17°C (63°F)
0 mm (0 in)
Mostly sunny
90% · S 1 m/s (2 knots)
24°C (75°F)
0 mm (0 in)
Clear skies
60% · W 1 m/s (2 knots)
29°C (84°F)
0 mm (0 in)
Clear skies
44% · NW 3 m/s (6 knots)
Wed
22 Jul
night
22°C (72°F)
0 mm (0 in)
Partly cloudy
66%
2 m/s (4 knots)
morning
17°C (63°F)
0 mm (0 in)
Mostly sunny
90%
1 m/s (2 knots)
afternoon
24°C (75°F)
0 mm (0 in)
Clear skies
60%
1 m/s (2 knots)
evening
29°C (84°F)
0 mm (0 in)
Clear skies
44%
3 m/s (6 knots)
Thursday
23 Jul
21°C (70°F)
0 mm (0 in)
Clear skies
72% · NE 2 m/s (4 knots)
18°C (64°F)
0 mm (0 in)
Clear skies
88% · NE ()
24°C (75°F)
0 mm (0 in)
Clear skies
57% · NW 2 m/s (4 knots)
30°C (86°F)
0 mm (0 in)
Clear skies
39% · NW 2 m/s (4 knots)
Thu
23 Jul
night
21°C (70°F)
0 mm (0 in)
Clear skies
72%
2 m/s (4 knots)
morning
18°C (64°F)
0 mm (0 in)
Clear skies
88%
()
afternoon
24°C (75°F)
0 mm (0 in)
Clear skies
57%
2 m/s (4 knots)
evening
30°C (86°F)
0 mm (0 in)
Clear skies
39%
2 m/s (4 knots)
Friday
24 Jul
22°C (72°F)
0 mm (0 in)
Clear skies
63% · N 3 m/s (6 knots)
18°C (64°F)
0 mm (0 in)
Clear skies
86% · SW 1 m/s (2 knots)
23°C (73°F)
0 mm (0 in)
Mostly sunny
56% · SW 2 m/s (4 knots)
28°C (82°F)
0 mm (0 in)
Clear skies
34% · SW 2 m/s (4 knots)
Fri
24 Jul
night
22°C (72°F)
0 mm (0 in)
Clear skies
63%
3 m/s (6 knots)
morning
18°C (64°F)
0 mm (0 in)
Clear skies
86%
1 m/s (2 knots)
afternoon
23°C (73°F)
0 mm (0 in)
Mostly sunny
56%
2 m/s (4 knots)
evening
28°C (82°F)
0 mm (0 in)
Clear skies
34%
2 m/s (4 knots)
Saturday
25 Jul
18°C (64°F)
0 mm (0 in)
Clear skies
66% · SW 4 m/s (8 knots)
15°C (59°F)
0.1 mm (0 in)
Cloudy
77% · S 4 m/s (8 knots)
18°C (64°F)
0 mm (0 in)
Cloudy
57% · SW 4 m/s (8 knots)
22°C (72°F)
0 mm (0 in)
Partly cloudy
48% · SW 4 m/s (8 knots)
Sat
25 Jul
night
18°C (64°F)
0 mm (0 in)
Clear skies
66%
4 m/s (8 knots)
morning
15°C (59°F)
0.1 mm (0 in)
Cloudy
77%
4 m/s (8 knots)
afternoon
18°C (64°F)
0 mm (0 in)
Cloudy
57%
4 m/s (8 knots)
evening
22°C (72°F)
0 mm (0 in)
Partly cloudy
48%
4 m/s (8 knots)
Sunday
26 Jul
17°C (63°F)
0 mm (0 in)
Partly cloudy
64% · SW 3 m/s (6 knots)
15°C (59°F)
0.2 mm (0.01 in)
Partly cloudy
80% · S 3 m/s (6 knots)
18°C (64°F)
0 mm (0 in)
Cloudy
61% · SW 3 m/s (6 knots)
23°C (73°F)
0 mm (0 in)
Partly cloudy
43% · SW 3 m/s (6 knots)
Sun
26 Jul
night
17°C (63°F)
0 mm (0 in)
Partly cloudy
64%
3 m/s (6 knots)
morning
15°C (59°F)
0.2 mm (0.01 in)
Partly cloudy
80%
3 m/s (6 knots)
afternoon
18°C (64°F)
0 mm (0 in)
Cloudy
61%
3 m/s (6 knots)
evening
23°C (73°F)
0 mm (0 in)
Partly cloudy
43%
3 m/s (6 knots)
Data from MET Norway.
Prefer the quick-glance version? See the 10-day summary.
Mercer Island weather by month
Browse monthly averages for Mercer Island: climate by month with temperature, rainfall and sunshine.
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