Jefferson, MD Weather & Growing Conditions
Tonight
51°F
Mostly Clear then Patchy Fog
Patchy fog after 5am. Mostly clear, with a low around 51. Southeast wind around 5 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 51°F | Mostly Clear then Patchy Fog | 5 mph SE | 2% |
| Wednesday | 74°F | Patchy Fog then Mostly Sunny | 3 to 14 mph S | 2% |
| Wednesday Night | 61°F | Mostly Cloudy then Light Rain | 6 to 9 mph S | 80% |
| Thursday | 75°F | Light Rain | 6 to 10 mph S | 75% |
| Thursday Night | 60°F | Chance Light Rain | 0 to 5 mph SW | 50% |
| Friday | 70°F | Chance Light Rain | 3 mph NW | 51% |
| Friday Night | 49°F | Chance Light Rain | 1 to 5 mph NW | 43% |
| Saturday | 64°F | Mostly Sunny | 5 to 13 mph NW | 11% |
| Saturday Night | 40°F | Partly Cloudy | 3 to 8 mph NW | 11% |
| Sunday | 61°F | Mostly Sunny | 5 to 9 mph W | 7% |
| Sunday Night | 39°F | Partly Cloudy then Slight Chance Light Rain | 7 mph W | 20% |
| Monday | 61°F | Slight Chance Light Rain | 7 to 16 mph NW | 22% |
| Monday Night | 37°F | Slight Chance Light Rain | 2 to 8 mph W | 22% |
| Tuesday | 64°F | Sunny | 5 to 14 mph W | 10% |
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 Nov 4, 2026.