Cottage Grove, OR Weather Forecast
Lane County, Oregon
Seven-day outlook
31–59°F across the weekThe week runs between 31° and 59°, with Wednesday 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 28%. 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 Cottage Grove forecast
Cottage Grove sits at 43.7959°N, 123.0572°W in Lane 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
- Lane County
- Coordinates
- 43.7959°N, 123.0572°W
- Population
- 10,623 · 2023 estimate
- Land area
- 3.871 sq mi
Place data from the US Census Bureau. Coordinates are the Census internal point for Cottage Grove, 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 Cottage Grove?
The nearest Doppler radar is KMAX (Medford, OR), 120 miles to the S. 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 Cottage Grove its center is about 12,700 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 Cottage Grove can look unsupported on the mosaic and still be right. Trust the warning over the picture.
The closest instrument actually measuring the air is K77S · Creswell/Hobby Fld on the ASOS/AWOS network, 9.8 miles away. Near enough to be representative on most days, though a summer thunderstorm can soak one and miss the other entirely.
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 Cottage Grove
- Creswell, OR9 mi
- Springfield, OR18 mi
- Eugene, OR18 mi
- Veneta, OR23 mi
- Junction City, OR30 mi
- Oakridge, OR30 mi
- Sutherlin, OR31 mi
- Harrisburg, OR33 mi
Elsewhere in Oregon
PortlandEugeneSalemGreshamHillsboroBendAll Oregon forecasts →