Martinsburg, MO Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Martinsburg, a town in Audrain County, Missouri.
This Afternoon
70°F
Light Rain
Rain and a slight chance of thunderstorms. Cloudy. High near 70, with temperatures falling to around 65 in the afternoon. South wind around 15 mph, with gusts as high as 24 mph. Chance of precipitation is 80%.
7-day forecast for Martinsburg
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 70°F | Light Rain | 15 mph S | 81% |
| Tonight | 48°F | Chance Light Rain then Chance Rain Showers | 9 to 13 mph SW | 30% |
| Wednesday | 59°F | Chance Rain Showers then Cloudy | 9 to 16 mph W | 11% |
| Wednesday Night | 38°F | Partly Cloudy | 7 mph SW | 0% |
| Thursday | 60°F | Mostly Sunny | 7 to 13 mph W | 8% |
| Thursday Night | 38°F | Mostly Cloudy | 6 mph NW | 14% |
| Friday | 55°F | Mostly Cloudy | 6 to 10 mph N | 4% |
| Friday Night | 34°F | Mostly Cloudy | 0 to 5 mph N | 2% |
| Saturday | 55°F | Partly Sunny | 0 to 3 mph NW | 1% |
| Saturday Night | 33°F | Partly Cloudy | 2 mph NW | 4% |
| Sunday | 61°F | Sunny | 2 to 7 mph W | 10% |
| Sunday Night | 33°F | Mostly Clear | 3 mph W | 2% |
| Monday | 66°F | Sunny | 3 to 9 mph SW | 1% |
| Monday Night | 38°F | Mostly Clear | 5 mph SW | 1% |
Forecast source: National Weather Service (api.weather.gov) for Martinsburg (39.101, -91.647). Updated through the day.
Growing snapshot for Martinsburg
Last spring frost
Apr 11
First fall frost
Oct 25
Growing season
197 days
Hardiness zone
6b
More local growing data for Martinsburg: nearby ZIP 65264 weather · frost dates · planting calendar · Missouri frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Mexico, Mo (12.3 mi from Martinsburg). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.