Harman US

Jarrettsville, MD Weather & Growing Conditions

This Afternoon
73°F
Mostly Sunny
Mostly sunny. High near 73, with temperatures falling to around 67 in the afternoon. Southeast wind around 9 mph, with gusts as high as 18 mph.

7-day forecast

WhenTempForecastWindPrecip
This Afternoon 73°F Mostly Sunny 9 mph SE 0%
Tonight 60°F Mostly Cloudy then Chance Light Rain 7 to 12 mph S 28%
Thursday 71°F Light Rain then Mostly Cloudy 7 to 12 mph S 82%
Thursday Night 57°F Chance Light Rain 2 to 6 mph SW 47%
Friday 68°F Chance Light Rain 3 mph NW 28%
Friday Night 47°F Slight Chance Light Rain then Mostly Cloudy 1 to 10 mph NW 21%
Saturday 60°F Mostly Sunny 14 mph NW 8%
Saturday Night 42°F Partly Cloudy 10 to 15 mph NW 8%
Sunday 59°F Mostly Sunny 10 to 15 mph NW 4%
Sunday Night 40°F Mostly Clear 8 to 13 mph W 0%
Monday 60°F Sunny 9 to 16 mph W 0%
Monday Night 39°F Mostly Clear 5 to 8 mph W 0%
Tuesday 64°F Sunny 7 to 13 mph W 1%
Tuesday Night 40°F Mostly Clear 5 to 8 mph W 1%

Forecast source: National Weather Service (api.weather.gov). Updated through the day.

Growing snapshot for Jarrettsville, MD

Last spring frost
Apr 19
First fall frost
Oct 25
Growing season
188 days
Hardiness zone
7a

Explore more for Jarrettsville, MD: full frost dates · planting calendar · Maryland frost dates

Climate data from the nearest NOAA station, Millers 4 Ne, Md (13.3 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 5, 2026.