Westminster, MD Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Westminster, a city in Carroll County, Maryland.
Overnight
61°F
Partly Cloudy
Partly cloudy, with a low around 61. Northeast wind around 2 mph.
7-day forecast for Westminster
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 61°F | Partly Cloudy | 2 mph NE | 0% |
| Tuesday | 84°F | Mostly Sunny | 1 to 5 mph E | 0% |
| Tuesday Night | 67°F | Mostly Cloudy then Slight Chance Showers And Thunderstorms | 1 to 5 mph E | 22% |
| Wednesday | 83°F | Showers And Thunderstorms Likely | 1 to 5 mph SE | 73% |
| Wednesday Night | 70°F | Showers And Thunderstorms Likely then Slight Chance Showers And Thunderstorms | 5 mph S | 63% |
| Thursday | 88°F | Mostly Sunny then Chance Showers And Thunderstorms | 3 to 8 mph S | 42% |
| Thursday Night | 70°F | Chance Showers And Thunderstorms | 1 to 7 mph SW | 42% |
| Friday | 87°F | Mostly Sunny then Chance Showers And Thunderstorms | 1 to 6 mph SW | 46% |
| Friday Night | 69°F | Chance Showers And Thunderstorms | 0 to 5 mph SW | 46% |
| Saturday | 86°F | Partly Sunny then Chance Showers And Thunderstorms | 1 to 6 mph SW | 41% |
| Saturday Night | 68°F | Chance Showers And Thunderstorms | 0 to 3 mph SW | 41% |
| Sunday | 87°F | Mostly Sunny | 0 to 5 mph W | 14% |
| Sunday Night | 70°F | Partly Cloudy | 0 to 3 mph SW | 14% |
| Monday | 89°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 1 to 7 mph W | 17% |
Forecast source: National Weather Service (api.weather.gov) for Westminster (39.580, -77.008). Updated through the day.
Growing snapshot for Westminster
Last spring frost
Apr 19
First fall frost
Oct 25
Growing season
188 days
Hardiness zone
7a
More local growing data for Westminster: nearby ZIP 21157 weather · frost dates · planting calendar · Maryland frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Millers 4 Ne, Md (15.2 mi from Westminster). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.