Diamond, MO Weather & Growing Conditions
Today
97°F
Sunny
Sunny. High near 97, with temperatures falling to around 95 in the afternoon. Heat index values as high as 98. Southwest wind 8 to 15 mph, with gusts as high as 24 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 97°F | Sunny | 8 to 15 mph SW | 0% |
| Tonight | 72°F | Partly Cloudy | 6 to 10 mph S | 7% |
| Sunday | 92°F | Chance Showers And Thunderstorms | 7 to 13 mph SW | 32% |
| Sunday Night | 66°F | Showers And Thunderstorms | 2 to 6 mph N | 82% |
| Monday | 80°F | Showers And Thunderstorms | 2 to 12 mph N | 82% |
| Monday Night | 59°F | Partly Cloudy | 7 to 13 mph N | 13% |
| Tuesday | 75°F | Partly Sunny | 10 mph NE | 8% |
| Tuesday Night | 54°F | Partly Cloudy | 6 to 12 mph NE | 1% |
| Wednesday | 77°F | Sunny | 8 mph NE | 2% |
| Wednesday Night | 55°F | Mostly Clear | 6 mph E | 2% |
| Thursday | 80°F | Mostly Sunny | 6 mph E | 5% |
| Thursday Night | 59°F | Partly Cloudy | 6 mph E | 10% |
| Friday | 80°F | Slight Chance Rain Showers | 7 mph E | 21% |
| Friday Night | 61°F | Partly Cloudy | 7 mph E | 14% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Diamond, MO
Last spring frost
Apr 18
First fall frost
Oct 22
Growing season
184 days
Hardiness zone
7a
Explore more for Diamond, MO: full frost dates · planting calendar · Missouri frost dates
Climate data from the nearest NOAA station, Diamond 2W, Mo (2.5 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.