Shamrock, OK Weather & Growing Conditions
Today
100°F
Sunny
Sunny, with a high near 100. Heat index values as high as 100. Southeast wind around 5 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 100°F | Sunny | 5 mph SE | 0% |
| Tonight | 75°F | Mostly Clear | 5 mph SE | 3% |
| Wednesday | 101°F | Mostly Sunny | 5 to 10 mph S | 4% |
| Wednesday Night | 75°F | Partly Cloudy | 5 mph SE | 6% |
| Thursday | 99°F | Mostly Sunny | 5 mph S | 13% |
| Thursday Night | 74°F | Chance Showers And Thunderstorms | 5 mph SE | 42% |
| Friday | 95°F | Chance Showers And Thunderstorms | 5 mph S | 42% |
| Friday Night | 73°F | Slight Chance Showers And Thunderstorms | 5 to 10 mph S | 19% |
| Saturday | 96°F | Slight Chance Showers And Thunderstorms then Sunny | 5 to 10 mph S | 18% |
| Saturday Night | 74°F | Mostly Clear | 5 to 10 mph S | 4% |
| Sunday | 97°F | Sunny | 5 to 10 mph S | 2% |
| Sunday Night | 74°F | Clear | 10 mph S | 0% |
| Monday | 97°F | Sunny | 10 mph S | 0% |
| Monday Night | 75°F | Mostly Clear | 10 mph S | 0% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Shamrock, OK
Last spring frost
Apr 9
First fall frost
Oct 25
Growing season
196 days
Hardiness zone
7b
Explore more for Shamrock, OK: full frost dates · planting calendar · Oklahoma frost dates
Climate data from the nearest NOAA station, Bristow, Ok (11.7 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.