Martinsburg, IN Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Martinsburg, a community in Washington County, Indiana.
This Afternoon
91°F
Scattered Showers And Thunderstorms
Scattered showers and thunderstorms. Sunny, with a high near 91. West wind around 5 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Martinsburg
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 91°F | Scattered Showers And Thunderstorms | 5 mph W | 30% |
| Tonight | 71°F | Scattered Showers And Thunderstorms then Partly Cloudy | 6 mph S | 27% |
| Sunday | 91°F | Mostly Sunny | 7 mph SW | 5% |
| Sunday Night | 65°F | Partly Cloudy then Scattered Showers And Thunderstorms | 7 mph N | 28% |
| Monday | 81°F | Scattered Showers And Thunderstorms | 7 mph NE | 45% |
| Monday Night | 59°F | Scattered Showers And Thunderstorms | 9 mph NE | 45% |
| Tuesday | 75°F | Scattered Rain Showers | 7 mph NE | 44% |
| Tuesday Night | 57°F | Scattered Showers And Thunderstorms | 5 to 9 mph NE | 35% |
| Wednesday | 73°F | Slight Chance Showers And Thunderstorms | 6 mph N | 24% |
| Wednesday Night | 56°F | Slight Chance Showers And Thunderstorms then Mostly Cloudy | 6 mph N | 17% |
| Thursday | 73°F | Partly Sunny | 6 mph N | 7% |
| Thursday Night | 55°F | Partly Cloudy | 6 mph N | 7% |
| Friday | 75°F | Partly Sunny | 3 to 7 mph N | 6% |
| Friday Night | 54°F | Partly Cloudy | 3 to 7 mph N | 4% |
Forecast source: National Weather Service (api.weather.gov) for Martinsburg (38.443, -86.025). Updated through the day.
Growing snapshot for Martinsburg
Last spring frost
Apr 17
First fall frost
Oct 22
Growing season
186 days
Hardiness zone
6b
More local growing data for Martinsburg: nearby ZIP 47165 weather · frost dates · planting calendar · Indiana frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Salem, In (9 mi from Martinsburg). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.