Williamsport, MD Weather & Growing Conditions
Today
76°F
Mostly Sunny
Mostly sunny, with a high near 76. Southeast wind 3 to 13 mph, with gusts as high as 21 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 76°F | Mostly Sunny | 3 to 13 mph SE | 1% |
| Tonight | 61°F | Mostly Cloudy then Rain Showers | 7 to 10 mph S | 79% |
| Thursday | 75°F | Rain Showers Likely | 5 to 10 mph S | 63% |
| Thursday Night | 56°F | Chance Rain Showers | 1 to 5 mph SW | 39% |
| Friday | 70°F | Slight Chance Light Rain | 3 mph NW | 37% |
| Friday Night | 45°F | Partly Cloudy | 5 mph NW | 13% |
| Saturday | 61°F | Mostly Sunny | 5 to 14 mph NW | 9% |
| Saturday Night | 37°F | Partly Cloudy | 7 to 12 mph W | 7% |
| Sunday | 60°F | Mostly Sunny | 7 to 12 mph NW | 3% |
| Sunday Night | 35°F | Mostly Clear | 7 mph W | 3% |
| Monday | 60°F | Sunny | 7 to 14 mph W | 3% |
| Monday Night | 33°F | Mostly Clear | 2 to 7 mph W | 3% |
| Tuesday | 65°F | Sunny | 3 to 10 mph W | 2% |
| Tuesday Night | 35°F | Mostly Clear | 6 mph W | 0% |
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 Nov 4, 2026.