Fillmore, CA Weather Forecast
Ventura County, California
Seven-day outlook
52–74°F across the weekThe week runs between 52° and 74°, 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 74%. 4 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 Fillmore forecast
Fillmore sits at 34.3990°N, 118.9175°W in Ventura 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
- Ventura County
- Coordinates
- 34.3990°N, 118.9175°W
- Population
- 17,190 · 2023 estimate
- Land area
- 3.303 sq mi
Place data from the US Census Bureau. Coordinates are the Census internal point for Fillmore, 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 Fillmore?
The nearest Doppler radar is KVTX (Los Angeles, CA), 15 miles to the W. 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 Fillmore its center is about 800 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 Fillmore, so low-level rotation and the leading edge of a gust front show up on it. Fillmore is closer to its radar than 91% of US cities.
The closest instrument actually measuring the air is KCMA · Camarillo Arpt on the ASOS/AWOS network, 16 miles away. Far enough that "current conditions" for Fillmore 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 California observing network as of this build.
Forecasts near Fillmore
- Moorpark, CA8 mi
- Santa Paula, CA9 mi
- Simi Valley, CA13 mi
- Camarillo, CA14 mi
- Thousand Oaks, CA14 mi
- Westlake Village, CA19 mi
- Ojai, CA19 mi
- Agoura Hills, CA19 mi
Elsewhere in California
Los AngelesSan DiegoSan JoseSan FranciscoFresnoSacramentoAll California forecasts →

