Jacksonville, FL Weather Forecast
Duval County, Florida
Seven-day outlook
57–78°F across the weekThe week runs between 66° and 78°, with Wednesday the warmest day of it. There is no real trend across it: one day looks much like the next. Sunday is the wettest day, peaking near 53%. 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 Jacksonville forecast
Jacksonville sits at 30.3369°N, 81.6616°W in Duval County, Florida. 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
- Duval County
- Coordinates
- 30.3369°N, 81.6616°W
- Population
- 985,843 · 2023 estimate
- Land area
- 747.261 sq mi
Place data from the US Census Bureau. Coordinates are the Census internal point for Jacksonville, 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 Jacksonville?
The nearest Doppler radar is KJAX (Jacksonville, FL), 10 miles to the NNW. 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 Jacksonville its center is about 540 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 Jacksonville, so low-level rotation and the leading edge of a gust front show up on it. Jacksonville is closer to its radar than 95% of US cities.
The closest instrument actually measuring the air is KNIP · Jacksonville on the ASOS/AWOS network, 7.1 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 Florida observing network as of this build.
Forecasts near Jacksonville
- Orange Park, FL12 mi
- Atlantic Beach, FL16 mi
- Neptune Beach, FL16 mi
- Jacksonville Beach, FL17 mi
- Green Cove Springs, FL24 mi
- Fernandina Beach, FL25 mi
- Macclenny, FL28 mi
- Hilliard, FL29 mi
Elsewhere in Florida
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