Linthicum, MD Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Linthicum, a community in Anne Arundel County, Maryland.
Tonight
52°F
Mostly Clear then Patchy Fog
Patchy fog after 4am. Mostly clear, with a low around 52. South wind around 5 mph.
7-day forecast for Linthicum
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 52°F | Mostly Clear then Patchy Fog | 5 mph S | 2% |
| Wednesday | 74°F | Patchy Fog then Mostly Sunny | 1 to 9 mph S | 2% |
| Wednesday Night | 61°F | Mostly Cloudy then Slight Chance Light Rain | 3 to 7 mph S | 24% |
| Thursday | 75°F | Chance Light Rain | 5 to 9 mph S | 53% |
| Thursday Night | 62°F | Light Rain Likely | 2 to 6 mph SW | 58% |
| Friday | 71°F | Rain Likely | 5 mph NW | 72% |
| Friday Night | 51°F | Light Rain Likely | 5 mph NW | 72% |
| Saturday | 66°F | Mostly Sunny | 6 to 10 mph NW | 12% |
| Saturday Night | 43°F | Partly Cloudy | 5 to 8 mph NW | 12% |
| Sunday | 62°F | Mostly Sunny | 5 to 8 mph NW | 6% |
| Sunday Night | 43°F | Slight Chance Light Rain | 5 to 8 mph W | 22% |
| Monday | 62°F | Slight Chance Light Rain | 8 to 13 mph W | 22% |
| Monday Night | 41°F | Slight Chance Light Rain | 5 to 9 mph W | 18% |
| Tuesday | 65°F | Sunny | 7 to 12 mph W | 13% |
Forecast source: National Weather Service (api.weather.gov) for Linthicum (39.210, -76.665). Updated through the day.
Growing snapshot for Linthicum
Last spring frost
Apr 10
First fall frost
Oct 31
Growing season
204 days
Hardiness zone
7b
More local growing data for Linthicum: nearby ZIP 21090 weather · frost dates · planting calendar · Maryland frost dates
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Climate data from the nearest NOAA station, Baltimore Wash Intl Ap, Md (3.1 mi from Linthicum). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.