Gray Summit, MO Weather & Growing Conditions
This Afternoon
58°F
Mostly Cloudy
Mostly cloudy, with a high near 58. West wind 5 to 9 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 58°F | Mostly Cloudy | 5 to 9 mph W | 0% |
| Tonight | 41°F | Partly Cloudy | 3 mph SW | 0% |
| Thursday | 61°F | Sunny | 3 to 8 mph W | 9% |
| Thursday Night | 43°F | Isolated Rain Showers then Mostly Cloudy | 3 mph NW | 16% |
| Friday | 56°F | Partly Sunny | 3 to 7 mph N | 5% |
| Friday Night | 33°F | Partly Cloudy | 0 to 3 mph N | 0% |
| Saturday | 54°F | Mostly Sunny | 1 mph N | 0% |
| Saturday Night | 31°F | Partly Cloudy | 1 mph NW | 0% |
| Sunday | 60°F | Sunny | 2 mph NW | 1% |
| Sunday Night | 33°F | Clear | 0 mph | 0% |
| Monday | 66°F | Sunny | 2 mph W | 0% |
| Monday Night | 38°F | Clear | 2 mph W | 1% |
| Tuesday | 68°F | Sunny | 2 mph W | 1% |
| Tuesday Night | 40°F | Mostly Clear | 0 mph | 2% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Gray Summit, MO
Last spring frost
Apr 8
First fall frost
Oct 25
Growing season
199 days
Hardiness zone
6b
Explore more for Gray Summit, MO: full frost dates · planting calendar · Missouri frost dates
Climate data from the nearest NOAA station, Washington, Mo (7.6 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.