Callaway, MD Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Callaway, a community in St. Mary's County, Maryland.
Tonight
66°F
Mostly Cloudy
Mostly cloudy, with a low around 66. Northeast wind 6 to 9 mph.
7-day forecast for Callaway
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 66°F | Mostly Cloudy | 6 to 9 mph NE | 10% |
| Saturday | 80°F | Mostly Sunny | 10 mph NE | 10% |
| Saturday Night | 68°F | Mostly Cloudy | 10 mph SE | 10% |
| Sunday | 83°F | Mostly Sunny | 7 to 13 mph S | 10% |
| Sunday Night | 69°F | Chance Showers And Thunderstorms | 7 to 12 mph W | 47% |
| Monday | 78°F | Chance Rain Showers | 8 to 12 mph N | 49% |
| Monday Night | 65°F | Chance Showers And Thunderstorms | 13 mph NE | 49% |
| Tuesday | 73°F | Showers And Thunderstorms Likely | 13 to 18 mph NE | 56% |
| Tuesday Night | 62°F | Showers And Thunderstorms Likely | 15 to 18 mph NE | 56% |
| Wednesday | 68°F | Chance Rain Showers | 15 to 18 mph NE | 50% |
| Wednesday Night | 61°F | Chance Showers And Thunderstorms | 14 to 18 mph NE | 50% |
| Thursday | 69°F | Chance Showers And Thunderstorms | 17 mph NE | 40% |
| Thursday Night | 59°F | Chance Showers And Thunderstorms | 9 to 16 mph N | 36% |
| Friday | 71°F | Slight Chance Rain Showers | 14 mph N | 24% |
Forecast source: National Weather Service (api.weather.gov) for Callaway (38.234, -76.529). Updated through the day.
Growing snapshot for Callaway
Last spring frost
Mar 22
First fall frost
Nov 26
Growing season
248 days
Hardiness zone
8a
More local growing data for Callaway: nearby ZIP 20620 weather · frost dates · planting calendar · Maryland frost dates
Nearby towns & communities
California
Leonardtown
Lexington Park
Mechanicsville
Piney Point
St. George Island
Tall Timbers
Wildewood
Climate data from the nearest NOAA station, Solomons, Md (7.1 mi from Callaway). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.