Coos Bay, OR Weather Forecast
Coos County, Oregon
Seven-day outlook
39–59°F across the weekThe week runs between 39° and 58°, with Tuesday the warmest day of it. There is no real trend across it: one day looks much like the next. Saturday is the wettest day, peaking near 30%. 5 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 Coos Bay forecast
Coos Bay sits at 43.3811°N, 124.2326°W in Coos County, Oregon. 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
- Coos County
- Coordinates
- 43.3811°N, 124.2326°W
- Population
- 15,595 · 2023 estimate
- Land area
- 10.629 sq mi
Place data from the US Census Bureau. Coordinates are the Census internal point for Coos Bay, 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 Coos Bay?
The nearest Doppler radar is KMAX (Medford, OR), 118 miles to the SE. 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 Coos Bay its center is about 12,400 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 Coos Bay can look unsupported on the mosaic and still be right. Trust the warning over the picture.
The closest instrument actually measuring the air is KOTH · North Bend/SW Oregon Rgnl on the ASOS/AWOS network, 2.7 miles away. Close enough that its readings are, for practical purposes, the conditions in town.
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 Oregon observing network as of this build.
Forecasts near Coos Bay
- North Bend, OR2 mi
- Coquille, OR14 mi
- Bandon, OR21 mi
- Reedsport, OR23 mi
- Florence, OR43 mi
- Winston, OR44 mi
- Roseburg, OR46 mi
- Sutherlin, OR46 mi
Elsewhere in Oregon
PortlandEugeneSalemGreshamHillsboroBendAll Oregon forecasts →