Trenton, MO Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Trenton, a city in Grundy County, Missouri.
Tonight
46°F
Cloudy
Cloudy, with a low around 46. West wind around 12 mph, with gusts as high as 20 mph.
7-day forecast for Trenton
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 46°F | Cloudy | 12 mph W | 11% |
| Wednesday | 55°F | Mostly Cloudy | 9 to 14 mph W | 8% |
| Wednesday Night | 41°F | Partly Cloudy | 7 mph WSW | 2% |
| Thursday | 55°F | Partly Sunny then Slight Chance Rain Showers | 6 to 10 mph W | 22% |
| Thursday Night | 41°F | Mostly Cloudy | 5 mph NW | 7% |
| Friday | 54°F | Partly Sunny | 3 to 8 mph N | 2% |
| Friday Night | 35°F | Mostly Cloudy | 2 mph N | 1% |
| Saturday | 56°F | Partly Sunny | 0 to 3 mph W | 1% |
| Saturday Night | 36°F | Mostly Clear | 1 mph W | 6% |
| Sunday | 61°F | Sunny | 1 to 5 mph W | 3% |
| Sunday Night | 37°F | Mostly Clear | 2 mph SW | 0% |
| Monday | 66°F | Sunny | 2 to 9 mph SW | 0% |
| Monday Night | 41°F | Mostly Clear | 5 mph W | 0% |
| Tuesday | 66°F | Mostly Sunny | 2 to 6 mph NE | 0% |
Forecast source: National Weather Service (api.weather.gov) for Trenton (40.081, -93.602). Updated through the day.
Growing snapshot for Trenton
Last spring frost
Apr 16
First fall frost
Oct 20
Growing season
184 days
Hardiness zone
6a
More local growing data for Trenton: nearby ZIP 64683 weather · frost dates · planting calendar · Missouri frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Trenton, Mo (0.7 mi from Trenton). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.