Dearborn, MO Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Dearborn, a city in Platte County, Missouri.
Tonight
46°F
Mostly Cloudy
Mostly cloudy, with a low around 46. West northwest wind 12 to 17 mph, with gusts as high as 23 mph. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Dearborn
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 46°F | Mostly Cloudy | 12 to 17 mph WNW | 8% |
| Wednesday | 57°F | Mostly Cloudy | 9 to 15 mph W | 6% |
| Wednesday Night | 39°F | Mostly Clear | 7 mph W | 3% |
| Thursday | 57°F | Mostly Sunny then Slight Chance Rain Showers | 6 to 10 mph WNW | 16% |
| Thursday Night | 40°F | Mostly Cloudy | 7 mph NNW | 4% |
| Friday | 56°F | Partly Sunny | 7 mph N | 4% |
| Friday Night | 37°F | Mostly Cloudy | 2 mph NNW | 0% |
| Saturday | 59°F | Mostly Sunny | 1 to 5 mph WSW | 2% |
| Saturday Night | 38°F | Mostly Clear | 3 mph W | 6% |
| Sunday | 64°F | Sunny | 5 mph W | 5% |
| Sunday Night | 40°F | Mostly Clear | 5 mph SW | 0% |
| Monday | 68°F | Sunny | 5 to 10 mph SW | 0% |
| Monday Night | 43°F | Mostly Clear | 6 mph W | 0% |
| Tuesday | 68°F | Mostly Sunny | 3 to 7 mph ENE | 0% |
Forecast source: National Weather Service (api.weather.gov) for Dearborn (39.525, -94.772). Updated through the day.
Growing snapshot for Dearborn
Last spring frost
Apr 18
First fall frost
Oct 20
Growing season
183 days
Hardiness zone
6a
More local growing data for Dearborn: nearby ZIP 64439 weather · frost dates · planting calendar · Missouri frost dates
Nearby towns & communities
Camden Point
Edgerton
Farley
Ferrelview
Houston Lake
Lake Waukomis
New Market
Northmoor
Parkville
Platte City
Platte Woods
Ridgely
Riverside
Tracy
Weatherby Lake
Climate data from the nearest NOAA station, Smithville Lake, Mo (14.3 mi from Dearborn). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.