Hennepin, OK Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Hennepin, a community in Carter County, Oklahoma.
Today
103°F
Sunny
Sunny, with a high near 103. Heat index values as high as 104. South wind around 6 mph.
7-day forecast for Hennepin
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 103°F | Sunny | 6 mph S | 1% |
| Tonight | 78°F | Mostly Clear | 5 to 8 mph SSE | 1% |
| Wednesday | 103°F | Sunny | 5 to 8 mph SSW | 2% |
| Wednesday Night | 78°F | Mostly Clear | 8 mph SSE | 2% |
| Thursday | 101°F | Mostly Sunny | 7 mph SSW | 11% |
| Thursday Night | 76°F | Partly Cloudy | 7 mph SSE | 11% |
| Friday | 99°F | Chance Showers And Thunderstorms | 6 mph S | 25% |
| Friday Night | 75°F | Chance Showers And Thunderstorms then Mostly Clear | 7 mph SSE | 25% |
| Saturday | 98°F | Sunny | 6 mph S | 10% |
| Saturday Night | 75°F | Mostly Clear | 7 mph S | 6% |
| Sunday | 98°F | Sunny | 5 to 8 mph S | 2% |
| Sunday Night | 76°F | Mostly Clear | 9 mph SSE | 1% |
| Monday | 98°F | Sunny | 7 to 12 mph S | 2% |
| Monday Night | 76°F | Mostly Clear | 8 to 12 mph S | 2% |
Forecast source: National Weather Service (api.weather.gov) for Hennepin (34.517, -97.345). Updated through the day.
Growing snapshot for Hennepin
Last spring frost
Apr 6
First fall frost
Nov 1
Growing season
204 days
Hardiness zone
8a
More local growing data for Hennepin: nearby ZIP 73444 weather · frost dates · planting calendar · Oklahoma frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Healdton 3 E, Ok (16.8 mi from Hennepin). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.