Thurmont, MD Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Thurmont, a town in Frederick County, Maryland.
This Afternoon
69°F
Sunny
Sunny, with a high near 69. South wind around 6 mph.
7-day forecast for Thurmont
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 69°F | Sunny | 6 mph S | 3% |
| Tonight | 53°F | Mostly Clear | 5 mph S | 2% |
| Wednesday | 73°F | Mostly Sunny | 3 to 12 mph S | 2% |
| Wednesday Night | 63°F | Mostly Cloudy then Light Rain | 7 to 10 mph S | 82% |
| Thursday | 73°F | Light Rain | 5 to 10 mph S | 79% |
| Thursday Night | 61°F | Light Rain Likely | 1 to 5 mph W | 58% |
| Friday | 69°F | Light Rain Likely | 2 mph NW | 56% |
| Friday Night | 51°F | Chance Light Rain then Partly Cloudy | 1 to 5 mph NW | 46% |
| Saturday | 63°F | Mostly Sunny | 5 to 12 mph NW | 12% |
| Saturday Night | 43°F | Mostly Clear | 5 to 9 mph NW | 12% |
| Sunday | 60°F | Mostly Sunny | 3 to 7 mph W | 7% |
| Sunday Night | 42°F | Partly Cloudy then Slight Chance Light Rain | 6 mph W | 15% |
| Monday | 59°F | Slight Chance Light Rain | 6 to 12 mph W | 16% |
| Monday Night | 41°F | Mostly Clear | 3 to 8 mph W | 8% |
Forecast source: National Weather Service (api.weather.gov) for Thurmont (39.620, -77.408). Updated through the day.
Growing snapshot for Thurmont
Last spring frost
Apr 14
First fall frost
Oct 30
Growing season
197 days
Hardiness zone
7a
More local growing data for Thurmont: nearby ZIP 21788 weather · frost dates · planting calendar · Maryland frost dates
Nearby towns & communities
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Bartonsville
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Emmitsburg
Frederick
Garretts Mill
Graceham
Green Valley
Jefferson
Lewistown
Libertytown
Linganore
Middletown
Monrovia
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Myersville
New Market
Point of Rocks
Rosemont
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Sandy Hook
Spring Ridge
Union Bridge
Urbana
Walkersville
Climate data from the nearest NOAA station, Catoctin Mtn Park, Md (5.3 mi from Thurmont). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 3, 2026.