Callaway, MD Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Callaway, a community in St. Mary's County, Maryland.
Today
80°F
Mostly Sunny then Slight Chance Rain Showers
A slight chance of rain showers after 5pm. Mostly sunny, with a high near 80. Northeast wind 6 to 10 mph, with gusts as high as 18 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Callaway
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 80°F | Mostly Sunny then Slight Chance Rain Showers | 6 to 10 mph NE | 15% |
| Tonight | 67°F | Slight Chance Rain Showers then Mostly Cloudy | 3 to 7 mph SE | 17% |
| Sunday | 84°F | Partly Sunny | 3 to 9 mph S | 9% |
| Sunday Night | 66°F | Showers And Thunderstorms Likely | 3 to 8 mph W | 60% |
| Monday | 75°F | Rain Showers Likely | 7 to 12 mph N | 60% |
| Monday Night | 61°F | Chance Rain Showers | 12 mph NE | 37% |
| Tuesday | 72°F | Chance Rain Showers | 12 to 17 mph NE | 52% |
| Tuesday Night | 59°F | Chance Rain Showers | 15 to 18 mph NE | 52% |
| Wednesday | 68°F | Chance Rain Showers | 16 to 20 mph NE | 45% |
| Wednesday Night | 59°F | Chance Rain Showers | 15 to 20 mph NE | 45% |
| Thursday | 68°F | Chance Showers And Thunderstorms | 16 to 20 mph NE | 45% |
| Thursday Night | 57°F | Chance Showers And Thunderstorms | 13 to 17 mph N | 39% |
| Friday | 70°F | Slight Chance Rain Showers | 15 mph N | 20% |
| Friday Night | 56°F | Slight Chance Rain Showers | 12 mph N | 15% |
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.