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Silt, CO Weather & Growing Conditions

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

Tonight
48°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms before 1am, then showers and thunderstorms likely. Mostly cloudy, with a low around 48. East wind around 5 mph. Chance of precipitation is 70%.

7-day forecast for Silt

WhenTempForecastWindPrecip
Tonight 48°F Chance Showers And Thunderstorms 5 mph E 68%
Saturday 75°F Showers And Thunderstorms Likely 0 to 5 mph ESE 73%
Saturday Night 45°F Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms 0 to 5 mph ENE 28%
Sunday 73°F Sunny 0 to 10 mph NW 1%
Sunday Night 42°F Mostly Clear 0 to 5 mph NE 0%
Monday 77°F Sunny 0 to 5 mph SW 0%
Monday Night 45°F Partly Cloudy 0 to 5 mph SE 2%
Tuesday 77°F Mostly Sunny then Slight Chance Showers And Thunderstorms 0 to 5 mph SSW 23%
Tuesday Night 46°F Chance Showers And Thunderstorms 0 to 5 mph SE 44%
Wednesday 75°F Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms 0 to 5 mph S 21%
Wednesday Night 45°F Partly Cloudy 0 mph 5%
Thursday 77°F Mostly Sunny then Slight Chance Rain Showers 0 mph 10%
Thursday Night 47°F Partly Cloudy 0 mph 13%
Friday 76°F Chance Rain Showers 0 mph 33%

Forecast source: National Weather Service (api.weather.gov) for Silt (39.548, -107.653). Updated through the day.

Growing snapshot for Silt

Last spring frost
May 11
First fall frost
Oct 4
Growing season
143 days
Hardiness zone
6a

More local growing data for Silt: nearby ZIP 81652 weather · frost dates · planting calendar · Colorado frost dates

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Climate data from the nearest NOAA station, Rifle Garfield Co Ap, Co (5 mi from Silt). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.