Bethesda, MD Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Bethesda, a community in Montgomery County, Maryland.
Today
86°F
Partly Sunny
Partly sunny, with a high near 86. East wind 3 to 7 mph.
7-day forecast for Bethesda
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 86°F | Partly Sunny | 3 to 7 mph E | 2% |
| Tonight | 71°F | Slight Chance Showers And Thunderstorms | 1 to 7 mph E | 62% |
| Wednesday | 86°F | Showers And Thunderstorms Likely | 2 to 7 mph SE | 65% |
| Wednesday Night | 73°F | Chance Showers And Thunderstorms | 6 mph S | 53% |
| Thursday | 91°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 5 to 10 mph S | 17% |
| Thursday Night | 74°F | Slight Chance Showers And Thunderstorms | 5 to 9 mph SW | 20% |
| Friday | 91°F | Mostly Sunny then Chance Showers And Thunderstorms | 7 mph SW | 38% |
| Friday Night | 73°F | Chance Showers And Thunderstorms | 2 to 6 mph SW | 50% |
| Saturday | 89°F | Slight Chance Rain Showers then Chance Showers And Thunderstorms | 2 to 6 mph SW | 54% |
| Saturday Night | 72°F | Chance Showers And Thunderstorms | 1 to 5 mph SW | 54% |
| Sunday | 90°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 1 to 6 mph W | 20% |
| Sunday Night | 73°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 1 to 5 mph SW | 20% |
| Monday | 92°F | Mostly Sunny | 2 to 7 mph W | 12% |
| Monday Night | 74°F | Slight Chance Showers And Thunderstorms | 2 to 6 mph W | 16% |
Forecast source: National Weather Service (api.weather.gov) for Bethesda (38.987, -77.119). Updated through the day.
Growing snapshot for Bethesda
Last spring frost
Apr 9
First fall frost
Oct 31
Growing season
202 days
Hardiness zone
7b
More local growing data for Bethesda: nearby ZIP 20894 weather · frost dates · planting calendar · Maryland frost dates
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Climate data from the nearest NOAA station, Dalecarlia Rsvr, Md (4 mi from Bethesda). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.