Trenton, MO Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Trenton, a city in Grundy County, Missouri.
Today
55°F
Mostly Cloudy
Mostly cloudy, with a high near 55. West wind 9 to 14 mph, with gusts as high as 23 mph.
7-day forecast for Trenton
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 55°F | Mostly Cloudy | 9 to 14 mph W | 8% |
| Tonight | 41°F | Mostly Cloudy | 7 mph W | 1% |
| Thursday | 55°F | Partly Sunny | 7 to 10 mph WNW | 3% |
| Thursday Night | 42°F | Mostly Cloudy | 6 mph NNW | 7% |
| Friday | 52°F | Partly Sunny | 3 to 8 mph N | 2% |
| Friday Night | 31°F | Partly Cloudy | 2 mph NNE | 0% |
| Saturday | 53°F | Mostly Sunny | 0 to 3 mph W | 0% |
| Saturday Night | 34°F | Mostly Clear | 1 mph W | 0% |
| Sunday | 60°F | Sunny | 1 to 5 mph W | 0% |
| Sunday Night | 36°F | Clear | 1 mph SW | 0% |
| Monday | 65°F | Sunny | 1 to 9 mph SSW | 0% |
| Monday Night | 40°F | Mostly Clear | 3 mph W | 0% |
| Tuesday | 66°F | Sunny | 1 to 5 mph NNW | 0% |
| Tuesday Night | 43°F | Partly Cloudy | 1 mph ENE | 1% |
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.