Gray Summit, MO Weather & Growing Conditions
This Afternoon
74°F
Light Rain
Rain and a slight chance of thunderstorms. Cloudy. High near 74, with temperatures falling to around 66 in the afternoon. South wind around 12 mph, with gusts as high as 24 mph. Chance of precipitation is 80%.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 74°F | Light Rain | 12 mph S | 80% |
| Tonight | 50°F | Light Rain Likely | 6 to 9 mph SW | 68% |
| Wednesday | 62°F | Mostly Cloudy | 5 to 9 mph W | 2% |
| Wednesday Night | 40°F | Partly Cloudy | 3 mph SW | 0% |
| Thursday | 65°F | Sunny | 3 to 7 mph W | 3% |
| Thursday Night | 40°F | Mostly Cloudy | 3 mph NW | 11% |
| Friday | 57°F | Mostly Cloudy | 6 mph NW | 2% |
| Friday Night | 36°F | Mostly Cloudy | 2 mph N | 2% |
| Saturday | 56°F | Partly Sunny | 1 mph NW | 0% |
| Saturday Night | 33°F | Partly Cloudy | 1 mph NW | 2% |
| Sunday | 62°F | Sunny | 3 mph W | 7% |
| Sunday Night | 33°F | Mostly Clear | 1 mph NW | 3% |
| Monday | 67°F | Sunny | 3 mph W | 1% |
| Monday Night | 38°F | Mostly Clear | 2 mph W | 1% |
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 (7.9 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.