 |
 Current Mercer Island Weather Conditions |
Updated December 8th at 5:53 am |
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| Mostly Cloudy |
| Temperature: | 50°F |
Dew Point: | 48°F |
| Barometer: | 30.09 inHg |
Wind: | N 6 Mph |
| Humidity: | 93.5% |
Visibility: | 0M |
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| Mercer Island Weather Forecast Summary |
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Today
Dec 8th
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Tuesday
Dec 9th
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Wednesday
Dec 10th
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Thursday
Dec 11th
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Friday
Dec 12th
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Showers |
Showers |
Showers |
Showers |
Cloudy |
54°F
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52°F
44°F |
54°F
45°F |
51°F
46°F |
53°F
46°F |
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| Mercer Island Detailed Weather Forecast |
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| Monday, December 8th, 2025 |
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Morning |
Temperature: 50°F |
| Cloudy with a few showers. Windy. |
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Afternoon |
Temperature: 53°F |
| Cloudy with a few showers. Windy at times. |
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Evening |
Temperature: 53°F |
| Cloudy with a few showers. Windy at times. |
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| Tuesday, December 9th, 2025 |
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Overnight |
Temperature: 45°F |
| Cloudy with a few showers. |
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Morning |
Temperature: 46°F |
| Cloudy. |
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Afternoon |
Temperature: 45°F |
| Cloudy with a chance of showers. |
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Evening |
Temperature: 48°F |
| Cloudy with showers likely. Windy at times. |
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| Wednesday, December 10th, 2025 |
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Overnight |
Temperature: 53°F |
| Cloudy with showers likely. Windy at times. |
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Morning |
Temperature: 48°F |
| Cloudy with periods of rain. |
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Afternoon |
Temperature: 46°F |
| Cloudy with showers. |
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Evening |
Temperature: 46°F |
| Cloudy with showers likely. |
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| Thursday, December 11th, 2025 |
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Overnight |
Temperature: 49°F |
| Cloudy with showers likely. |
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Morning |
Temperature: 49°F |
| Cloudy with showers likely. |
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Afternoon |
Temperature: 48°F |
| Cloudy with showers likely. |
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Evening |
Temperature: 46°F |
| Cloudy with a chance of showers. |
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| Friday, December 12th, 2025 |
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Overnight |
Temperature: 46°F |
| Cloudy. |
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Morning |
Temperature: 48°F |
| Cloudy with a chance of showers. |
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Afternoon |
Temperature: 52°F |
| Cloudy with a chance of showers. |
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Evening |
Temperature: 51°F |
| Cloudy with a chance of showers. |
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| Saturday, December 13th, 2025 |
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Overnight |
Temperature: 49°F |
| Cloudy with a chance of showers. |
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Morning |
Temperature: 52°F |
| Cloudy. |
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Afternoon |
Temperature: 51°F |
| Cloudy with showers likely. |
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Evening |
Temperature: 48°F |
| A mix of cloudy and clear skies with showers likely. Windy at times. |
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| Sunday, December 14th, 2025 |
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Overnight |
Temperature: 45°F |
| Cloudy with a chance of showers. |
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Morning |
Temperature: 45°F |
| Cloudy with showers likely. |
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Afternoon |
Temperature: 44°F |
| Cloudy with showers likely. |
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Evening |
Temperature: 45°F |
| Cloudy with a slight chance of showers. |
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| Monday, December 15th, 2025 |
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Overnight |
Temperature: 43°F |
| Cloudy. |
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Morning |
Temperature: 49°F |
| Cloudy. |
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Afternoon |
Temperature: 47°F |
| Cloudy with showers likely. |
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Evening |
Temperature: 46°F |
| Cloudy with a few showers. |
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| Tuesday, December 16th, 2025 |
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Overnight |
Temperature: 48°F |
| Cloudy with showers likely. |
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Morning |
Temperature: 51°F |
| Cloudy with a slight chance of showers. |
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Afternoon |
Temperature: 50°F |
| Cloudy with a slight chance of showers. |
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Evening |
Temperature: 50°F |
| Cloudy with a chance of showers. |
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