Largo, MD Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Largo, a community in Prince George's County, Maryland.
This Afternoon
71°F
Sunny
Sunny, with a high near 71. South wind around 7 mph.
7-day forecast for Largo
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 71°F | Sunny | 7 mph S | 2% |
| Tonight | 53°F | Mostly Clear then Patchy Fog | 6 mph S | 2% |
| Wednesday | 75°F | Patchy Fog then Mostly Sunny | 3 to 9 mph S | 2% |
| Wednesday Night | 62°F | Mostly Cloudy then Slight Chance Light Rain | 7 mph S | 20% |
| Thursday | 75°F | Chance Light Rain | 7 to 10 mph S | 37% |
| Thursday Night | 63°F | Light Rain Likely | 3 to 7 mph S | 60% |
| Friday | 71°F | Rain | 6 mph N | 75% |
| Friday Night | 52°F | Light Rain | 2 to 7 mph NW | 75% |
| Saturday | 66°F | Mostly Sunny | 7 to 12 mph NW | 9% |
| Saturday Night | 45°F | Partly Cloudy | 8 mph NW | 9% |
| Sunday | 62°F | Mostly Sunny | 8 mph W | 8% |
| Sunday Night | 44°F | Partly Cloudy then Slight Chance Light Rain | 7 mph W | 17% |
| Monday | 62°F | Slight Chance Light Rain then Mostly Sunny | 8 to 13 mph W | 17% |
| Monday Night | 41°F | Mostly Clear | 5 to 8 mph W | 9% |
Forecast source: National Weather Service (api.weather.gov) for Largo (38.880, -76.829). Updated through the day.
Growing snapshot for Largo
Last spring frost
Apr 22
First fall frost
Oct 22
Growing season
183 days
Hardiness zone
7b
More local growing data for Largo: nearby ZIP 20721 weather · frost dates · planting calendar · Maryland frost dates
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Climate data from the nearest NOAA station, Glenn Dale Bell Stn, Md (3.8 mi from Largo). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 3, 2026.