Guymon, OK Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Guymon, a city in Texas County, Oklahoma.
Today
93°F
Mostly Sunny
Mostly sunny, with a high near 93. North northwest wind 10 to 15 mph, with gusts as high as 25 mph.
7-day forecast for Guymon
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 93°F | Mostly Sunny | 10 to 15 mph NNW | 7% |
| Tonight | 65°F | Slight Chance Showers And Thunderstorms | 5 to 10 mph NNE | 20% |
| Wednesday | 101°F | Sunny | 5 to 15 mph SSE | 13% |
| Wednesday Night | 65°F | Chance Showers And Thunderstorms | 10 to 15 mph E | 32% |
| Thursday | 100°F | Sunny | 5 to 15 mph SSE | 11% |
| Thursday Night | 67°F | Slight Chance Showers And Thunderstorms | 10 to 15 mph SSE | 15% |
| Friday | 102°F | Sunny | 10 to 15 mph SSW | 9% |
| Friday Night | 67°F | Slight Chance Showers And Thunderstorms | 10 mph S | 20% |
| Saturday | 103°F | Sunny | 10 to 15 mph SSW | 5% |
| Saturday Night | 69°F | Mostly Clear | 15 mph S | 0% |
| Sunday | 103°F | Sunny | 15 mph SSW | 0% |
| Sunday Night | 70°F | Clear | 15 mph S | 0% |
| Monday | 104°F | Sunny | 15 to 20 mph SSW | 0% |
| Monday Night | 71°F | Mostly Clear | 15 to 20 mph S | 1% |
Forecast source: National Weather Service (api.weather.gov) for Guymon (36.690, -101.477). Updated through the day.
Growing snapshot for Guymon
Last spring frost
Apr 18
First fall frost
Oct 23
Growing season
188 days
Hardiness zone
6b
More local growing data for Guymon: nearby ZIP 73942 weather · frost dates · planting calendar · Oklahoma frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Guymon Muni Ap, Ok (4.3 mi from Guymon). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.