Grand Rivers, KY Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Grand Rivers, a city in Marshall County, Kentucky.
Overnight
65°F
Mostly Clear
Mostly clear. Low around 65, with temperatures rising to around 67 overnight. North northwest wind around 2 mph.
7-day forecast for Grand Rivers
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 65°F | Mostly Clear | 2 mph NNW | 0% |
| Tuesday | 86°F | Sunny | 3 mph NE | 0% |
| Tuesday Night | 66°F | Mostly Clear | 2 mph NNE | 0% |
| Wednesday | 89°F | Sunny | 1 mph WNW | 0% |
| Wednesday Night | 70°F | Mostly Clear | 1 mph S | 1% |
| Thursday | 90°F | Mostly Sunny | 3 mph SSW | 6% |
| Thursday Night | 72°F | Mostly Cloudy then Slight Chance Showers And Thunderstorms | 2 mph S | 21% |
| Friday | 89°F | Chance Showers And Thunderstorms | 5 mph SSW | 36% |
| Friday Night | 71°F | Chance Showers And Thunderstorms | 2 mph SSW | 36% |
| Saturday | 89°F | Chance Showers And Thunderstorms | 3 mph SW | 34% |
| Saturday Night | 71°F | Chance Showers And Thunderstorms then Partly Cloudy | 1 mph S | 34% |
| Sunday | 89°F | Slight Chance Showers And Thunderstorms | 5 mph SSW | 15% |
| Sunday Night | 73°F | Slight Chance Showers And Thunderstorms then Mostly Clear | 2 mph SSW | 15% |
| Monday | 91°F | Sunny | 5 mph SSW | 7% |
Forecast source: National Weather Service (api.weather.gov) for Grand Rivers (37.005, -88.232). Updated through the day.
Growing snapshot for Grand Rivers
Last spring frost
Apr 9
First fall frost
Oct 19
Growing season
192 days
Hardiness zone
7a
More local growing data for Grand Rivers: nearby ZIP 42044 weather · frost dates · planting calendar · Kentucky frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Benton, Ky (8 mi from Grand Rivers). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.