Holts Summit, MO Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Holts Summit, a city in Callaway County, Missouri.
This Afternoon
97°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms. Sunny, with a high near 97. Heat index values as high as 105. South wind around 3 mph. Chance of precipitation is 30%.
7-day forecast for Holts Summit
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 97°F | Chance Showers And Thunderstorms | 3 mph S | 25% |
| Tonight | 73°F | Slight Chance Showers And Thunderstorms then Mostly Clear | 5 mph SE | 18% |
| Saturday | 97°F | Partly Sunny | 5 to 8 mph SW | 4% |
| Saturday Night | 71°F | Partly Cloudy then Slight Chance Rain Showers | 5 mph SW | 18% |
| Sunday | 90°F | Chance Rain Showers | 5 mph W | 43% |
| Sunday Night | 66°F | Showers And Thunderstorms | 5 mph NE | 79% |
| Monday | 76°F | Showers And Thunderstorms | 7 mph NE | 79% |
| Monday Night | 60°F | Chance Showers And Thunderstorms | 7 mph N | 36% |
| Tuesday | 70°F | Mostly Cloudy | 7 mph N | 14% |
| Tuesday Night | 54°F | Mostly Cloudy | 6 mph NE | 4% |
| Wednesday | 73°F | Mostly Sunny | 5 mph NE | 2% |
| Wednesday Night | 54°F | Partly Cloudy | 3 mph NE | 1% |
| Thursday | 75°F | Mostly Sunny | 5 mph NE | 6% |
| Thursday Night | 58°F | Partly Cloudy | 3 mph NE | 4% |
Forecast source: National Weather Service (api.weather.gov) for Holts Summit (38.647, -92.113). Updated through the day.
Growing snapshot for Holts Summit
Last spring frost
Apr 10
First fall frost
Oct 26
Growing season
198 days
Hardiness zone
6b
More local growing data for Holts Summit: nearby ZIP 65043 weather · frost dates · planting calendar · Missouri frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Jefferson City Mem Ap, Mo (3.6 mi from Holts Summit). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.