Mercer Island

Weather in Mercer Island: forecast and live map

The weather over Mercer Island as it is measured right now, from radar and the airport reports at Seattle/Boeing Fld and Renton Muni, beside the forecast model’s temperature and wind. Each layer says which it is.

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Right now · as of

  • Rain or snow on radar 12 mi W of Mercer Island.
  • Seattle/Boeing Fld, 7 km: 53 °F, humidity 80%, calm, visibility 10+ miles · 23 minutes ago
  • Renton Muni, 8 km: 52 °F, humidity 89%, calm, visibility 10+ miles · 23 minutes ago
  • Seattle-Tacoma Intl, 16 km: 54 °F, humidity 72%, wind NW 5 mph, visibility 10+ miles · 23 minutes ago
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Mercer Island weather forecast

  1. 9:00 PM51 °FN 4 mph–
  2. 12:00 AM48 °FE 3 mph–
  3. 3:00 AM47 °FNE 5 mph–
  4. 6:00 AM46 °FE 4 mph–
  5. 9:00 AM48 °FNE 6 mph–
  6. 12:00 PM55 °FN 6 mph–
  7. 3:00 PM57 °FN 9 mph–
  8. 6:00 PM54 °FN 6 mph–
Mercer Island weather forecast
DaySkyHigh / lowRainWind up to
Thu, Oct 2257 °F / 45 °F–9 mph
Fri, Oct 2356 °F / 45 °F–7 mph
Sat, Oct 2453 °F / 39 °F0.01 in5 mph
Sun, Oct 2558 °F / 45 °F0.01 in3 mph
Mon, Oct 2660 °F / 44 °F–3 mph
Tue, Oct 2753 °F / 49 °F0.06 in5 mph
Wed, Oct 2857 °F / 46 °F–6 mph

Forecast by MET Norway (CC BY 4.0), updated 06:17 PM PDT. Times are local.

What the map shows over Mercer Island

  • Rain radarMeasuredMercer Island is inside RainViewer’s radar coverage. Frames every 10 minutes for the last 2 hours.Open on the mapAbout this layer
  • Live lightning mapMeasuredMercer Island is inside the area NOAA’s lightning networks cover. Strike density every 15 minutes.Open on the mapAbout this layer
  • Temperature mapForecast modelNOAA’s GFS model on a 0.25° grid, points about 25 km apart: the forecast for now, not a thermometer reading.Open on the mapAbout this layer
  • Wind mapForecast modelWind 10 metres up from the same model, so it smooths over streets and hills.Open on the mapAbout this layer
  • Severe weather alertsOfficial warningsActive alerts from the US National Weather Service, each pinned as one point.Open on the mapAbout this layer
  • Airport weather (METAR)MeasuredThe latest reports from Seattle/Boeing Fld (KBFI), 7 km away, Renton Muni (KRNT), 8 km away and Seattle-Tacoma Intl (KSEA), 16 km away, usually every hour.Open on the mapAbout this layer

Good to know

  • Radar, lightning and airport reports are measurements. Temperature and wind are a forecast model’s values for the nearest hour, which can differ from what a thermometer in Mercer Island reads.
  • Radar detail stops at about zoom 7 and lightning at zoom 8, so the weather of a single street isn’t resolved.
  • For a picture of conditions, not for safety decisions: follow the warnings of your local weather service.

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