Jasper, TN Weather Forecast
Marion County, Tennessee
Seven-day outlook
44–78°F across the weekThe week runs between 49° and 78°, with tomorrow 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 51%. 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 Jasper forecast
Jasper sits at 35.0683°N, 85.6212°W in Marion County, Tennessee. 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
- Marion County
- Coordinates
- 35.0683°N, 85.6212°W
- Population
- 3,621 · 2023 estimate
- Land area
- 9.846 sq mi
Place data from the US Census Bureau. Coordinates are the Census internal point for Jasper, 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 Jasper?
The nearest Doppler radar is KHTX (Huntsville, AL), 28 miles to the WSW. 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 Jasper its center is about 1,700 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 Jasper, so low-level rotation and the leading edge of a gust front show up on it. Jasper is closer to its radar than 74% of US cities.
The closest instrument actually measuring the air is KCHA · Chattanooga Metro on the ASOS/AWOS network, 24 miles away. Far enough that "current conditions" for Jasper 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 Tennessee observing network as of this build.
Forecasts near Jasper
- South Pittsburg, TN7 mi
- Signal Mountain, TN17 mi
- Red Bank, TN19 mi
- Rossville, GA20 mi
- Chattanooga, TN21 mi
- East Ridge, TN23 mi
- Chickamauga, GA23 mi
- Fort Oglethorpe, GA23 mi
Elsewhere in Tennessee
NashvilleMemphisKnoxvilleChattanoogaClarksvilleMurfreesboroAll Tennessee forecasts →