St. Louis, OK Weather & Growing Conditions
This Afternoon
98°F
Sunny
Sunny, with a high near 98. Heat index values as high as 97. South wind around 8 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 98°F | Sunny | 8 mph S | 0% |
| Tonight | 73°F | Mostly Clear | 8 mph S | 0% |
| Saturday | 99°F | Sunny | 8 to 12 mph SSW | 1% |
| Saturday Night | 74°F | Partly Cloudy | 10 mph S | 11% |
| Sunday | 97°F | Showers And Thunderstorms Likely | 7 to 10 mph S | 57% |
| Sunday Night | 67°F | Showers And Thunderstorms Likely | 3 to 7 mph SSE | 71% |
| Monday | 88°F | Slight Chance Showers And Thunderstorms | 3 to 8 mph NNE | 57% |
| Monday Night | 64°F | Partly Cloudy | 7 mph NNE | 12% |
| Tuesday | 84°F | Mostly Sunny | 9 mph NNE | 14% |
| Tuesday Night | 61°F | Partly Cloudy | 8 mph NE | 4% |
| Wednesday | 86°F | Mostly Sunny | 7 mph ENE | 11% |
| Wednesday Night | 62°F | Partly Cloudy | 5 mph ENE | 7% |
| Thursday | 87°F | Mostly Sunny | 5 mph ENE | 13% |
| Thursday Night | 64°F | Partly Cloudy | 5 mph ENE | 10% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for St. Louis, OK
Last spring frost
Apr 1
First fall frost
Nov 1
Growing season
214 days
Hardiness zone
7b
Explore more for St. Louis, OK: full frost dates · planting calendar · Oklahoma frost dates
Climate data from the nearest NOAA station, Seminole 4Ssw Mesonet, Ok (11.3 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.