Catonsville, MD Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Catonsville, a community in Baltimore County, Maryland.
Tonight
53°F
Mostly Clear
Mostly clear, with a low around 53. South wind around 3 mph.
7-day forecast for Catonsville
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 53°F | Mostly Clear | 3 mph S | 2% |
| Wednesday | 74°F | Patchy Fog then Mostly Sunny | 2 to 9 mph S | 2% |
| Wednesday Night | 61°F | Mostly Cloudy then Chance Light Rain | 7 mph S | 29% |
| Thursday | 74°F | Light Rain Likely | 9 mph S | 56% |
| Thursday Night | 62°F | Light Rain Likely | 2 to 7 mph SW | 57% |
| Friday | 70°F | Rain Likely | 5 mph NW | 69% |
| Friday Night | 51°F | Light Rain Likely | 2 to 7 mph NW | 69% |
| Saturday | 65°F | Mostly Sunny | 10 mph NW | 12% |
| Saturday Night | 43°F | Partly Cloudy | 8 mph NW | 12% |
| Sunday | 61°F | Mostly Sunny | 9 mph NW | 6% |
| Sunday Night | 43°F | Slight Chance Light Rain | 6 to 9 mph W | 22% |
| Monday | 61°F | Slight Chance Light Rain | 10 to 14 mph NW | 22% |
| Monday Night | 42°F | Slight Chance Light Rain | 7 to 10 mph W | 17% |
| Tuesday | 63°F | Sunny | 7 to 13 mph W | 13% |
Forecast source: National Weather Service (api.weather.gov) for Catonsville (39.264, -76.742). Updated through the day.
Growing snapshot for Catonsville
Last spring frost
Mar 24
First fall frost
Nov 21
Growing season
244 days
Hardiness zone
7b
More local growing data for Catonsville: nearby ZIP 21228 weather · frost dates · planting calendar · Maryland frost dates
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Climate data from the nearest NOAA station, Md Sci Ctr Baltimore, Md (7.5 mi from Catonsville). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.