Garden City, CO Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Garden City, a town in Weld County, Colorado.
This Afternoon
79°F
Showers And Thunderstorms Likely
Showers and thunderstorms likely. Mostly cloudy. High near 79, with temperatures falling to around 72 in the afternoon. North northwest wind around 9 mph. Chance of precipitation is 70%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Garden City
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 79°F | Showers And Thunderstorms Likely | 9 mph NNW | 66% |
| Tonight | 50°F | Chance Showers And Thunderstorms | 2 to 9 mph SSE | 48% |
| Sunday | 70°F | Chance Showers And Thunderstorms | 3 to 7 mph NNE | 50% |
| Sunday Night | 48°F | Slight Chance Rain Showers then Partly Cloudy | 1 to 8 mph NNW | 19% |
| Monday | 73°F | Sunny | 1 to 9 mph ENE | 1% |
| Monday Night | 48°F | Partly Cloudy | 5 to 10 mph ESE | 4% |
| Tuesday | 79°F | Sunny | 2 to 10 mph E | 2% |
| Tuesday Night | 52°F | Partly Cloudy | 5 to 10 mph ESE | 10% |
| Wednesday | 81°F | Mostly Sunny | 6 mph NNE | 3% |
| Wednesday Night | 52°F | Mostly Cloudy | 6 mph NNE | 7% |
| Thursday | 82°F | Mostly Sunny | 2 to 9 mph NNE | 2% |
| Thursday Night | 54°F | Partly Cloudy | 2 to 9 mph ESE | 6% |
| Friday | 82°F | Mostly Sunny then Slight Chance Rain Showers | 2 to 12 mph SE | 18% |
| Friday Night | 54°F | Chance Rain Showers | 3 to 12 mph SSE | 26% |
Forecast source: National Weather Service (api.weather.gov) for Garden City (40.395, -104.689). Updated through the day.
Growing snapshot for Garden City
Last spring frost
May 2
First fall frost
Oct 8
Growing season
159 days
Hardiness zone
5b
More local growing data for Garden City: nearby ZIP 80620 weather · frost dates · planting calendar · Colorado frost dates
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Climate data from the nearest NOAA station, Greeley Unc, Co (2 mi from Garden City). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 20, 2026.