14 days forecast Mercer Island
See the weather for the coming 14 days in Mercer Island.
Saturday, January 10 
25%
5° / 10°
2
25%Cloudy with some rain
Total precipitation 6.5 mm
Precipitation chance 90%
UV index 1
Sunday, January 11 
0%
7° / 9°
2
0%Grey and some period of rain
Total precipitation 14.4 mm
Precipitation chance 95%
UV index 0
Monday, January 12 0%
9° / 12°
3
0%Cloudy with some rain
Total precipitation 4.2 mm
Precipitation chance 85%
UV index 0
Tuesday, January 13 
75%
9° / 13°
2
75%Lots of sun, also cirrus clouds
Total precipitation 0 mm
Precipitation chance 5%
UV index 1
Wednesday, January 14 
45%
8° / 12°
2
45%Regular sun, also clouds
Total precipitation 0.6 mm
Precipitation chance 20%
UV index 0
Thursday, January 15 
85%
6° / 10°
3
85%Lots of sun, few clouds
Total precipitation 0 mm
Precipitation chance 0%
UV index 1
Friday, January 16 
90%
4° / 9°
3
90%Radiant sunny weather
Total precipitation 0.1 mm
Precipitation chance 0%
UV index 1
Saturday, January 17 90%
2° / 9°
2
90%Radiant sunny weather
Total precipitation 0.1 mm
Precipitation chance 0%
UV index 1
Sunday, January 18 90%
2° / 9°
2
90%Radiant sunny weather
Total precipitation 0.1 mm
Precipitation chance 0%
UV index 1
Monday, January 19 75%
3° / 9°
2
75%Lots of sun, also cirrus clouds
Total precipitation 0.7 mm
Precipitation chance 20%
UV index 1
Tuesday, January 20 
45%
3° / 9°
2
45%Sun and chance of a shower
Total precipitation 1.7 mm
Precipitation chance 60%
UV index 0
Wednesday, January 21 40%
5° / 9°
2
40%Sun and chance of a shower
Total precipitation 2.4 mm
Precipitation chance 70%
UV index 0
Thursday, January 22 
40%
5° / 10°
2
40%Sun, but also an occasional shower
Total precipitation 3.9 mm
Precipitation chance 85%
UV index 0
Friday, January 23 35%
6° / 10°
2
35%Sun, but also an occasional shower
Total precipitation 5.3 mm
Precipitation chance 90%
UV index 0