Chillum, MD Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Chillum, a community in Prince George's County, Maryland.
Today
87°F
Partly Sunny
Partly sunny, with a high near 87. Northeast wind 5 to 8 mph.
7-day forecast for Chillum
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 87°F | Partly Sunny | 5 to 8 mph NE | 2% |
| Tonight | 71°F | Mostly Cloudy then Slight Chance Showers And Thunderstorms | 2 to 7 mph E | 57% |
| Wednesday | 87°F | Showers And Thunderstorms Likely | 2 to 7 mph SE | 67% |
| Wednesday Night | 73°F | Chance Showers And Thunderstorms | 6 mph S | 53% |
| Thursday | 92°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 6 to 10 mph SW | 16% |
| Thursday Night | 75°F | Slight Chance Showers And Thunderstorms | 5 to 9 mph SW | 19% |
| Friday | 92°F | Mostly Sunny then Chance Showers And Thunderstorms | 5 to 8 mph SW | 36% |
| Friday Night | 73°F | Chance Showers And Thunderstorms | 2 to 7 mph SW | 49% |
| Saturday | 91°F | Partly Sunny then Showers And Thunderstorms Likely | 2 to 7 mph SW | 55% |
| Saturday Night | 72°F | Showers And Thunderstorms Likely then Chance Showers And Thunderstorms | 1 to 6 mph W | 55% |
| Sunday | 91°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 2 to 6 mph W | 21% |
| Sunday Night | 74°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 5 mph SW | 21% |
| Monday | 93°F | Mostly Sunny | 2 to 7 mph W | 11% |
| Monday Night | 75°F | Slight Chance Showers And Thunderstorms | 2 to 6 mph W | 17% |
Forecast source: National Weather Service (api.weather.gov) for Chillum (38.967, -76.979). Updated through the day.
Growing snapshot for Chillum
Last spring frost
Mar 29
First fall frost
Nov 8
Growing season
224 days
Hardiness zone
7b
More local growing data for Chillum: nearby ZIP 20782 weather · frost dates · planting calendar · Maryland frost dates
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Climate data from the nearest NOAA station, Natl Arboretum Dc, Md (3.6 mi from Chillum). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.