Chico, CA Weather Forecast
Butte County, California
Seven-day outlook
45–69°F across the weekThe week runs between 45° and 69°, with tomorrow 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 36%. 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 Chico forecast
Chico sits at 39.7590°N, 121.8177°W in Butte County, California. 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
- Butte County
- Coordinates
- 39.7590°N, 121.8177°W
- Population
- 101,301 · 2023 estimate
- Land area
- 34.521 sq mi
Place data from the US Census Bureau. Coordinates are the Census internal point for Chico, 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 Chico?
The nearest Doppler radar is KBBX (Beale AFB, CA), 21 miles to the SSE. 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 Chico its center is about 1,200 ft above ground. That is about as close as radar coverage gets in the United States: the lowest scan is still near the ground when it reaches Chico, so low-level rotation and the leading edge of a gust front show up on it. Chico is closer to its radar than 84% of US cities.
The closest instrument actually measuring the air is KCIC · Chico Muni on the ASOS/AWOS network, 3.5 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 California observing network as of this build.
Forecasts near Chico
- Paradise, CA11 mi
- Orland, CA20 mi
- Corning, CA23 mi
- Oroville, CA23 mi
- Willows, CA26 mi
- Gridley, CA28 mi
- Live Oak, CA34 mi
- Red Bluff, CA36 mi
Elsewhere in California
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