Williamsport, MD Weather & Growing Conditions
This Afternoon
78°F
Mostly Cloudy
Mostly cloudy, with a high near 78. Southeast wind around 6 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 78°F | Mostly Cloudy | 6 mph SE | 11% |
| Tonight | 64°F | Slight Chance Rain Showers | 6 to 10 mph SE | 23% |
| Sunday | 83°F | Chance Rain Showers | 6 to 10 mph S | 51% |
| Sunday Night | 58°F | Chance Showers And Thunderstorms then Showers And Thunderstorms | 3 to 10 mph NW | 77% |
| Monday | 69°F | Chance Rain Showers | 7 to 10 mph NE | 43% |
| Monday Night | 53°F | Rain Showers Likely | 5 to 8 mph NE | 57% |
| Tuesday | 62°F | Rain Showers Likely | 9 mph NE | 68% |
| Tuesday Night | 50°F | Rain Showers Likely | 10 mph NE | 67% |
| Wednesday | 59°F | Rain Showers Likely | 10 mph NE | 56% |
| Wednesday Night | 50°F | Chance Rain Showers | 10 mph NE | 43% |
| Thursday | 61°F | Chance Rain Showers | 10 mph NE | 43% |
| Thursday Night | 50°F | Chance Rain Showers | 5 to 8 mph N | 40% |
| Friday | 67°F | Slight Chance Rain Showers | 9 mph N | 22% |
| Friday Night | 49°F | Slight Chance Rain Showers then Mostly Cloudy | 5 to 8 mph N | 16% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Williamsport, MD
Last spring frost
Apr 11
First fall frost
Oct 28
Growing season
199 days
Hardiness zone
7a
Explore more for Williamsport, MD: full frost dates · planting calendar · Maryland frost dates
Climate data from the nearest NOAA station, Hagerstown 1 E, Md (7.9 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.