Lyndon, KY Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Lyndon, a city in Jefferson County, Kentucky.
This Afternoon
93°F
Scattered Showers And Thunderstorms
Scattered showers and thunderstorms. Mostly sunny, with a high near 93. Southwest wind around 7 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Lyndon
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 93°F | Scattered Showers And Thunderstorms | 7 mph SW | 31% |
| Tonight | 73°F | Scattered Showers And Thunderstorms then Partly Cloudy | 7 mph S | 33% |
| Sunday | 95°F | Sunny | 6 to 10 mph SW | 5% |
| Sunday Night | 68°F | Partly Cloudy then Isolated Showers And Thunderstorms | 6 to 9 mph N | 21% |
| Monday | 85°F | Scattered Showers And Thunderstorms | 10 mph NE | 44% |
| Monday Night | 62°F | Scattered Showers And Thunderstorms | 8 to 13 mph NE | 46% |
| Tuesday | 78°F | Scattered Showers And Thunderstorms | 9 mph NE | 46% |
| Tuesday Night | 61°F | Chance Showers And Thunderstorms | 6 to 12 mph NE | 38% |
| Wednesday | 75°F | Chance Showers And Thunderstorms | 6 to 9 mph N | 38% |
| Wednesday Night | 59°F | Chance Showers And Thunderstorms then Mostly Cloudy | 5 to 9 mph N | 28% |
| Thursday | 75°F | Partly Sunny | 5 to 8 mph N | 10% |
| Thursday Night | 58°F | Partly Cloudy | 5 to 9 mph N | 10% |
| Friday | 76°F | Partly Sunny | 5 to 10 mph N | 5% |
| Friday Night | 56°F | Partly Cloudy | 6 to 10 mph NE | 5% |
Forecast source: National Weather Service (api.weather.gov) for Lyndon (38.263, -85.588). Updated through the day.
Growing snapshot for Lyndon
Last spring frost
Apr 3
First fall frost
Nov 3
Growing season
214 days
Hardiness zone
7a
More local growing data for Lyndon: nearby ZIP 40242 weather · frost dates · planting calendar · Kentucky frost dates
Nearby towns & communities
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Climate data from the nearest NOAA station, Louisville Bowman Fld, Ky (5.3 mi from Lyndon). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.