Chelan, WA Weather Forecast
Chelan County, Washington
Seven-day outlook
34–51°F across the weekThe week runs between 34° and 51°, with Wednesday the warmest day of it. There is no real trend across it: one day looks much like the next. Tomorrow is the wettest day, peaking near 29%. 6 of the 7 days stay dry.
Forecasts come from the National Weather Service's own computer models, and current conditions from the nearest reporting weather station. Both are served through the weather API. A forecast is guidance, not a warning, and anything the Weather Service has actually issued is on the live map.
The written summaries on this page are generated from the forecast data above, not by a meteorologist. Each sentence is a reading of the same numbers you can see, and no forecaster has reviewed them.
About the Chelan forecast
Chelan sits at 47.8443°N, 120.0136°W in Chelan County, Washington. The forecast above is drawn for that point from the National Weather Service's own computer models: a seven-day outlook, and a finer-grained one covering the next eighteen hours where it reaches, and the radar and alert panels show what the Weather Service has out over the area right now.
- County
- Chelan County
- Coordinates
- 47.8443°N, 120.0136°W
- Population
- 4,412 · 2023 estimate
- Land area
- 6.703 sq mi
Place data from the US Census Bureau. Coordinates are the Census internal point for Chelan, and the forecast is for that location, not for every address inside the city limits, and a large city can have real weather differences from one side to the other.
How well can the network see Chelan?
The nearest Doppler radar is KOTX (Spokane, WA), 111 miles to the E. A WSR-88D's lowest routine scan sits half a degree above horizontal, and the earth curves away beneath it, so by the time that beam reaches Chelan its center is about 11,300 ft above ground. At that range the beam overshoots the layer where severe weather organizes. The radar is describing the middle of the storm, not its base , which is why a warning for Chelan can look unsupported on the mosaic and still be right. Trust the warning over the picture.
The closest instrument actually measuring the air is KEAT · Wenatchee/Pangborn Mem on the ASOS/AWOS network, 32 miles away. Far enough that "current conditions" for Chelan is an educated reading of somewhere else, worth knowing before you plan around a single temperature.
Beam height is the standard 4/3-earth approximation for the 0.5° scan and assumes normal refraction; it is where the center of the beam is, not its edges, and unusual temperature profiles bend it. Radar siting from the NWS WSR-88D network, station positions from the Washington observing network as of this build.
Forecasts near Chelan
- Cashmere, WA31 mi
- Wenatchee, WA32 mi
- East Wenatchee, WA32 mi
- Quincy, WA43 mi
- Ephrata, WA43 mi
- Omak, WA46 mi
- Moses Lake, WA60 mi
- Ellensburg, WA63 mi
Elsewhere in Washington
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