Manassa, CO Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Manassa, a town in Conejos County, Colorado.
This Afternoon
71°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms before 3pm, then a chance of showers and thunderstorms between 3pm and 4pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 71. Southwest wind around 15 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Manassa
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 71°F | Chance Showers And Thunderstorms | 15 mph SW | 48% |
| Tonight | 38°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 5 to 15 mph S | 17% |
| Saturday | 75°F | Sunny then Slight Chance Showers And Thunderstorms | 5 to 20 mph SW | 16% |
| Saturday Night | 36°F | Slight Chance Showers And Thunderstorms then Mostly Clear | 5 to 15 mph SW | 10% |
| Sunday | 75°F | Sunny | 0 to 15 mph SW | 1% |
| Sunday Night | 37°F | Mostly Clear | 0 to 15 mph WSW | 0% |
| Monday | 75°F | Mostly Sunny | 0 to 10 mph SW | 0% |
| Monday Night | 39°F | Partly Cloudy | 5 to 10 mph SSW | 1% |
| Tuesday | 71°F | Showers And Thunderstorms Likely | 5 to 15 mph SW | 57% |
| Tuesday Night | 39°F | Showers And Thunderstorms Likely | 10 to 15 mph S | 55% |
| Wednesday | 68°F | Chance Rain Showers then Chance Showers And Thunderstorms | 5 to 10 mph S | 54% |
| Wednesday Night | 38°F | Chance Showers And Thunderstorms | 5 to 10 mph S | 30% |
| Thursday | 68°F | Chance Rain Showers then Chance Showers And Thunderstorms | 5 mph ENE | 43% |
| Thursday Night | 39°F | Chance Showers And Thunderstorms | 5 mph S | 40% |
Forecast source: National Weather Service (api.weather.gov) for Manassa (37.174, -105.937). Updated through the day.
Growing snapshot for Manassa
Last spring frost
May 28
First fall frost
Sep 21
Growing season
115 days
Hardiness zone
5a
More local growing data for Manassa: nearby ZIP 81141 weather · frost dates · planting calendar · Colorado frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Manassa, Co (2.6 mi from Manassa). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 18, 2026.