Jefferson, MD Weather & Growing Conditions
This Afternoon
77°F
Mostly Cloudy
Mostly cloudy, with a high near 77. Southeast wind around 8 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 77°F | Mostly Cloudy | 8 mph SE | 4% |
| Tonight | 65°F | Mostly Cloudy then Isolated Rain Showers | 7 to 10 mph SE | 20% |
| Sunday | 83°F | Chance Showers And Thunderstorms | 9 to 13 mph S | 70% |
| Sunday Night | 60°F | Chance Showers And Thunderstorms | 2 to 8 mph W | 70% |
| Monday | 71°F | Chance Rain Showers | 8 to 12 mph NE | 35% |
| Monday Night | 57°F | Rain Showers Likely | 6 to 9 mph NE | 56% |
| Tuesday | 64°F | Showers And Thunderstorms Likely | 9 to 14 mph NE | 70% |
| Tuesday Night | 53°F | Showers And Thunderstorms Likely | 12 mph NE | 70% |
| Wednesday | 60°F | Chance Rain Showers | 13 mph NE | 53% |
| Wednesday Night | 52°F | Chance Rain Showers | 9 to 13 mph NE | 37% |
| Thursday | 61°F | Chance Rain Showers | 9 to 13 mph NE | 25% |
| Thursday Night | 51°F | Slight Chance Rain Showers | 5 to 9 mph N | 24% |
| Friday | 66°F | Chance Rain Showers | 12 mph N | 27% |
| Friday Night | 51°F | Chance Rain Showers | 7 to 12 mph N | 25% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Jefferson, MD
Last spring frost
Apr 2
First fall frost
Nov 6
Growing season
218 days
Hardiness zone
7b
Explore more for Jefferson, MD: full frost dates · planting calendar · Maryland frost dates
Climate data from the nearest NOAA station, Frederick Police Brks, Md (7.9 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.