Harman US

Severn, MD Weather & Growing Conditions

This Afternoon
85°F
Partly Sunny
Partly sunny, with a high near 85. East wind around 7 mph.

7-day forecast

WhenTempForecastWindPrecip
This Afternoon 85°F Partly Sunny 7 mph E 1%
Tonight 70°F Mostly Cloudy then Slight Chance Showers And Thunderstorms 2 to 6 mph E 42%
Wednesday 86°F Showers And Thunderstorms Likely 2 to 8 mph SE 62%
Wednesday Night 73°F Chance Showers And Thunderstorms then Partly Cloudy 3 to 7 mph S 52%
Thursday 91°F Mostly Sunny then Slight Chance Showers And Thunderstorms 6 to 10 mph S 19%
Thursday Night 74°F Slight Chance Showers And Thunderstorms 5 to 9 mph SW 24%
Friday 91°F Mostly Sunny then Chance Showers And Thunderstorms 5 to 8 mph SW 42%
Friday Night 73°F Chance Showers And Thunderstorms 3 to 7 mph SW 50%
Saturday 90°F Partly Sunny then Chance Showers And Thunderstorms 3 to 7 mph SW 53%
Saturday Night 72°F Chance Showers And Thunderstorms 2 to 6 mph SW 53%
Sunday 90°F Mostly Sunny then Slight Chance Showers And Thunderstorms 2 to 6 mph W 21%
Sunday Night 73°F Slight Chance Showers And Thunderstorms then Partly Cloudy 5 mph SW 21%
Monday 93°F Mostly Sunny 3 to 7 mph W 14%
Monday Night 74°F Slight Chance Showers And Thunderstorms 7 mph W 20%

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

Growing snapshot for Severn, MD

Last spring frost
Apr 10
First fall frost
Oct 31
Growing season
204 days
Hardiness zone
7b

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

Climate data from the nearest NOAA station, Baltimore Wash Intl Ap, Md (3.2 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.