Simpsonville, KY Weather Forecast
Shelby County, Kentucky
Seven-day outlook
40–76°F across the weekThe week runs between 51° and 76°, with today 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 45%. 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 Simpsonville forecast
Simpsonville sits at 38.2169°N, 85.3496°W in Shelby County, Kentucky. 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
- Shelby County
- Coordinates
- 38.2169°N, 85.3496°W
- Population
- 3,068 · 2023 estimate
- Land area
- 2.353 sq mi
Place data from the US Census Bureau. Coordinates are the Census internal point for Simpsonville, 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 Simpsonville?
The nearest Doppler radar is KLVX (Louisville, KY), 36 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 Simpsonville its center is about 2,300 ft above ground. That is comfortably inside the useful range. The lowest scan passes low enough over Simpsonville to show rotation in the part of a storm where tornadoes actually form. Simpsonville is closer to its radar than 61% of US cities.
The closest instrument actually measuring the air is KLOU · Louisville/Bowman Fld on the ASOS/AWOS network, 17 miles away. Far enough that "current conditions" for Simpsonville 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 Kentucky observing network as of this build.
Forecasts near Simpsonville
- Shelbyville, KY6 mi
- Middletown, KY9 mi
- Douglass Hills, KY11 mi
- Crestwood, KY11 mi
- Jeffersontown, KY12 mi
- La Grange, KY13 mi
- Hurstbourne, KY13 mi
- Lyndon, KY13 mi
Elsewhere in Kentucky
LouisvilleLexington-FayetteBowling GreenOwensboroCovingtonGeorgetownAll Kentucky forecasts →