Ault, CO Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for Ault, a town in Weld County, Colorado.

Overnight

53°F

Mostly Cloudy

Mostly cloudy, with a low around 53. North northwest wind around 5 mph.

7-day forecast for Ault

When	Temp	Forecast	Wind	Precip
Overnight	53°F	Mostly Cloudy	5 mph NNW	8%
Saturday	75°F	Partly Sunny then Chance Showers And Thunderstorms	3 to 8 mph WSW	70%
Saturday Night	49°F	Chance Showers And Thunderstorms	3 to 7 mph NNE	45%
Sunday	69°F	Chance Rain Showers	6 mph NE	38%
Sunday Night	46°F	Chance Showers And Thunderstorms then Partly Cloudy	6 mph NE	30%
Monday	70°F	Sunny	3 to 9 mph E	1%
Monday Night	48°F	Partly Cloudy	6 to 9 mph ESE	13%
Tuesday	74°F	Sunny	3 to 9 mph ESE	3%
Tuesday Night	51°F	Partly Cloudy	6 to 12 mph E	14%
Wednesday	77°F	Mostly Sunny	7 mph E	7%
Wednesday Night	51°F	Slight Chance Showers And Thunderstorms then Partly Cloudy	6 mph NE	15%
Thursday	79°F	Mostly Sunny	3 to 8 mph E	2%
Thursday Night	52°F	Partly Cloudy	3 to 8 mph ESE	11%
Friday	79°F	Mostly Sunny	3 to 12 mph ESE	8%

Forecast source: National Weather Service (api.weather.gov) for Ault (40.589, -104.739). Updated through the day.

Growing snapshot for Ault

Last spring frost

May 13

First fall frost

Sep 27

Growing season

136 days

Hardiness zone

More local growing data for Ault: nearby ZIP 80650 weather · frost dates · planting calendar · Colorado frost dates

Nearby towns & communities

Aristocrat Ranchettes Berthoud Briggsdale Dacono Eaton Erie Evans Firestone Fort Lupton Frederick Garden City Gilcrest Greeley Grover Hudson Johnstown Keenesburg Kersey La Salle Mead Milliken Nunn Orchard Pierce Platteville Raymer (New Raymer) Severance Windsor

All Colorado locations ›

Climate data from the nearest NOAA station, Nunn 7 Nne, Co (11 mi from Ault). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.