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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

WhenTempForecastWindPrecip
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
5b

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

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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.