Jarrettsville, MD Weather & Growing Conditions
Today
84°F
Mostly Sunny
Mostly sunny, with a high near 84. Northeast wind around 5 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 84°F | Mostly Sunny | 5 mph NE | 0% |
| Tonight | 66°F | Mostly Cloudy then Slight Chance Showers And Thunderstorms | 5 mph SE | 18% |
| Wednesday | 83°F | Showers And Thunderstorms | 3 to 7 mph SE | 75% |
| Wednesday Night | 70°F | Chance Showers And Thunderstorms | 7 mph S | 49% |
| Thursday | 88°F | Mostly Sunny then Chance Showers And Thunderstorms | 5 to 9 mph S | 47% |
| Thursday Night | 71°F | Chance Showers And Thunderstorms | 3 to 8 mph SW | 47% |
| Friday | 88°F | Mostly Sunny then Chance Showers And Thunderstorms | 6 mph SW | 50% |
| Friday Night | 69°F | Chance Showers And Thunderstorms | 5 mph W | 50% |
| Saturday | 87°F | Partly Sunny then Chance Showers And Thunderstorms | 2 to 7 mph W | 47% |
| Saturday Night | 69°F | Chance Showers And Thunderstorms | 5 mph SW | 47% |
| Sunday | 88°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 2 to 6 mph W | 16% |
| Sunday Night | 70°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 2 to 6 mph SW | 16% |
| Monday | 90°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 3 to 8 mph W | 20% |
| Monday Night | 70°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 7 mph W | 20% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Jarrettsville, MD
Last spring frost
Apr 3
First fall frost
Nov 6
Growing season
217 days
Hardiness zone
7a
Explore more for Jarrettsville, MD: full frost dates · planting calendar · Maryland frost dates
Climate data from the nearest NOAA station, Conowingo Dam, Md (15.8 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.