Onancock, VA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Onancock, a town in Accomack County, Virginia.
This Afternoon
85°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms. Partly sunny, with a high near 85. North wind around 8 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Onancock
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 85°F | Chance Showers And Thunderstorms | 8 mph N | 28% |
| Tonight | 69°F | Chance Showers And Thunderstorms then Mostly Cloudy | 7 mph NE | 28% |
| Saturday | 78°F | Mostly Sunny then Slight Chance Rain Showers | 7 to 12 mph NE | 15% |
| Saturday Night | 65°F | Slight Chance Rain Showers then Partly Cloudy | 6 to 10 mph E | 15% |
| Sunday | 82°F | Sunny | 6 to 10 mph SE | 2% |
| Sunday Night | 69°F | Slight Chance Rain Showers | 6 to 10 mph SW | 18% |
| Monday | 81°F | Chance Rain Showers then Chance Showers And Thunderstorms | 6 to 13 mph N | 47% |
| Monday Night | 65°F | Chance Showers And Thunderstorms | 13 mph NE | 48% |
| Tuesday | 76°F | Showers And Thunderstorms Likely | 14 to 22 mph NE | 57% |
| Tuesday Night | 62°F | Showers And Thunderstorms Likely | 16 to 22 mph NE | 57% |
| Wednesday | 73°F | Chance Rain Showers | 16 to 23 mph NE | 52% |
| Wednesday Night | 61°F | Chance Showers And Thunderstorms | 15 to 23 mph NE | 52% |
| Thursday | 73°F | Chance Rain Showers | 17 to 22 mph NE | 39% |
| Thursday Night | 58°F | Chance Showers And Thunderstorms | 10 to 22 mph N | 39% |
Forecast source: National Weather Service (api.weather.gov) for Onancock (37.710, -75.744). Updated through the day.
Growing snapshot for Onancock
Last spring frost
Apr 4
First fall frost
Nov 7
Growing season
216 days
Hardiness zone
8a
More local growing data for Onancock: nearby ZIP 23417 weather · frost dates · planting calendar · Virginia frost dates
Nearby towns & communities
Accomac
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Bayside
Bloxom
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Chase Crossing
Chincoteague
Deep Creek
Gargatha
Greenbackville
Greenbush
Hallwood
Harborton
Horntown
Keller
Lee Mont
Locust Mount
Makemie Park
Mappsburg
Mappsville
Melfa
Metompkin
Modest Town
Nelsonia
New Church
Oak Hall
Onley
Painter
Climate data from the nearest NOAA station, Painter 2 W, Va (10.7 mi from Onancock). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 18, 2026.