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
84°F
Partly Sunny then Slight Chance Showers And Thunderstorms
A slight chance of showers and thunderstorms between 3pm and 5pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 84. Northeast wind around 7 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Callaway
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 84°F | Partly Sunny then Slight Chance Showers And Thunderstorms | 7 mph NE | 27% |
| Tonight | 71°F | Showers And Thunderstorms Likely | 2 to 6 mph SE | 72% |
| Wednesday | 86°F | Showers And Thunderstorms Likely then Slight Chance Showers And Thunderstorms | 3 to 8 mph SE | 58% |
| Wednesday Night | 74°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 8 mph S | 15% |
| Thursday | 90°F | Sunny | 6 to 10 mph S | 11% |
| Thursday Night | 75°F | Mostly Clear | 7 to 10 mph S | 11% |
| Friday | 90°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 9 mph SW | 18% |
| Friday Night | 74°F | Chance Showers And Thunderstorms | 5 to 8 mph SW | 34% |
| Saturday | 89°F | Mostly Sunny then Chance Showers And Thunderstorms | 8 mph SW | 38% |
| Saturday Night | 72°F | Chance Showers And Thunderstorms | 3 to 7 mph SW | 38% |
| Sunday | 89°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 5 mph SW | 23% |
| Sunday Night | 74°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 5 mph S | 23% |
| Monday | 91°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 5 mph SW | 15% |
| Monday Night | 74°F | Slight Chance Showers And Thunderstorms | 5 mph SW | 17% |
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 Aug 4, 2026.