Spiro, OK Weather & Growing Conditions
Overnight
73°F
Partly Cloudy
Partly cloudy, with a low around 73. Southeast wind 0 to 5 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 73°F | Partly Cloudy | 0 to 5 mph SE | 0% |
| Saturday | 100°F | Sunny | 0 to 10 mph S | 0% |
| Saturday Night | 72°F | Mostly Clear | 0 to 10 mph S | 0% |
| Sunday | 97°F | Mostly Sunny | 0 to 5 mph S | 5% |
| Sunday Night | 72°F | Chance Showers And Thunderstorms | 0 to 5 mph SW | 49% |
| Monday | 93°F | Chance Showers And Thunderstorms | 0 to 10 mph N | 49% |
| Monday Night | 67°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 5 to 10 mph N | 19% |
| Tuesday | 88°F | Mostly Sunny | 5 to 10 mph N | 9% |
| Tuesday Night | 63°F | Partly Cloudy | 5 to 10 mph NE | 8% |
| Wednesday | 88°F | Sunny | 5 mph NE | 4% |
| Wednesday Night | 62°F | Mostly Clear | 5 mph NE | 2% |
| Thursday | 89°F | Mostly Sunny | 5 mph E | 2% |
| Thursday Night | 63°F | Partly Cloudy | 5 mph E | 2% |
| Friday | 89°F | Mostly Sunny | 5 mph E | 5% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Spiro, OK
Last spring frost
Mar 25
First fall frost
Nov 6
Growing season
224 days
Hardiness zone
7b
Explore more for Spiro, OK: full frost dates · planting calendar · Oklahoma frost dates
Climate data from the nearest NOAA station, Ft Smith Rgnl Ap, Ar (15.3 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.