Circle, AK Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for Circle, a community in Yukon-Koyukuk Census Area County, Alaska.

Today

54°F

Scattered Rain Showers

Scattered rain showers. Mostly cloudy, with a high near 54. Southwest wind around 5 mph. Chance of precipitation is 30%.

7-day forecast for Circle

When	Temp	Forecast	Wind	Precip
Today	54°F	Scattered Rain Showers	5 mph SW	25%
Tonight	35°F	Slight Chance Rain Showers then Mostly Cloudy	0 to 5 mph SW	17%
Sunday	48°F	Chance Rain Showers	0 to 5 mph N	34%
Sunday Night	33°F	Chance Rain Showers	0 to 5 mph NW	40%
Monday	47°F	Rain Showers Likely	0 mph	56%
Monday Night	36°F	Rain Showers Likely	0 mph	63%
Tuesday	45°F	Chance Rain Showers then Mostly Cloudy	0 to 5 mph SW	34%
Tuesday Night	25°F	Mostly Cloudy	0 to 5 mph SW	3%
Wednesday	44°F	Partly Sunny	0 to 5 mph SW	3%
Wednesday Night	24°F	Partly Cloudy	0 mph	2%
Thursday	48°F	Mostly Sunny	0 to 5 mph SE	2%
Thursday Night	27°F	Partly Cloudy	5 mph SE	8%
Friday	51°F	Partly Sunny	5 mph SE	8%
Friday Night	29°F	Mostly Cloudy	5 mph S	14%

Forecast source: National Weather Service (api.weather.gov) for Circle (65.839, -144.175). Updated through the day.

Growing snapshot for Circle

Last spring frost

May 25

First fall frost

Aug 26

Growing season

92 days

More local growing data for Circle: nearby ZIP 99733 weather · frost dates · planting calendar · Alaska frost dates

Nearby towns & communities

Alatna Allakaket Aniak Anvik Arctic Village Beaver Bettles Birch Creek Central Chalkyitsik Chuathbaluk Coldfoot Evansville Four Mile Road Galena Grayling Holy Cross Hughes Huslia Kaltag Koyukuk Lake Minchumina Livengood Manley Hot Springs McGrath Minto Nenana Nikolai Nulato Rampart

All Alaska locations ›

Climate data from the nearest NOAA station, Central #2, Ak (22.4 mi from Circle). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.