Catonsville, MD Weather & Growing Conditions
Today
86°F
Mostly Sunny
Mostly sunny, with a high near 86. East wind around 7 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 86°F | Mostly Sunny | 7 mph E | 1% |
| Tonight | 70°F | Mostly Cloudy then Slight Chance Showers And Thunderstorms | 2 to 6 mph E | 39% |
| Wednesday | 86°F | Showers And Thunderstorms Likely | 2 to 7 mph SE | 66% |
| Wednesday Night | 73°F | Showers And Thunderstorms Likely then Chance Showers And Thunderstorms | 6 mph S | 57% |
| Thursday | 91°F | Mostly Sunny then Chance Showers And Thunderstorms | 5 to 10 mph S | 28% |
| Thursday Night | 74°F | Chance Showers And Thunderstorms | 3 to 9 mph SW | 33% |
| Friday | 91°F | Mostly Sunny then Chance Showers And Thunderstorms | 7 mph SW | 43% |
| Friday Night | 73°F | Chance Showers And Thunderstorms | 2 to 6 mph SW | 51% |
| Saturday | 90°F | Slight Chance Rain Showers then Chance Showers And Thunderstorms | 2 to 7 mph W | 52% |
| Saturday Night | 72°F | Chance Showers And Thunderstorms | 5 mph W | 52% |
| Sunday | 90°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 2 to 6 mph W | 19% |
| Sunday Night | 73°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 5 mph SW | 19% |
| Monday | 93°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 2 to 8 mph W | 15% |
| Monday Night | 74°F | Slight Chance Showers And Thunderstorms | 6 mph W | 18% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Catonsville, MD
Last spring frost
Mar 24
First fall frost
Nov 21
Growing season
244 days
Hardiness zone
7b
Explore more for Catonsville, MD: full frost dates · planting calendar · Maryland frost dates
Climate data from the nearest NOAA station, Md Sci Ctr Baltimore, Md (5.8 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.