Grand Lake, CO Weather & Growing Conditions
Today
73°F
Patchy Smoke
Patchy smoke. Sunny. High near 73, with temperatures falling to around 71 in the afternoon. Southwest wind 5 to 14 mph, with gusts as high as 26 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 73°F | Patchy Smoke | 5 to 14 mph SW | 8% |
| Tonight | 41°F | Patchy Smoke | 2 to 10 mph S | 5% |
| Wednesday | 72°F | Sunny | 3 to 15 mph WSW | 0% |
| Wednesday Night | 41°F | Mostly Clear | 2 to 14 mph W | 0% |
| Thursday | 75°F | Sunny | 3 to 12 mph W | 0% |
| Thursday Night | 44°F | Clear | 2 to 10 mph WNW | 0% |
| Friday | 78°F | Sunny | 2 to 10 mph W | 0% |
| Friday Night | 47°F | Mostly Clear | 2 to 8 mph NE | 0% |
| Saturday | 78°F | Sunny | 2 to 9 mph W | 1% |
| Saturday Night | 49°F | Partly Cloudy | 2 to 6 mph NE | 0% |
| Sunday | 78°F | Mostly Sunny | 2 to 9 mph W | 8% |
| Sunday Night | 49°F | Partly Cloudy | 2 to 7 mph WNW | 9% |
| Monday | 77°F | Mostly Sunny then Chance Showers And Thunderstorms | 2 to 7 mph WSW | 40% |
| Monday Night | 47°F | Chance Showers And Thunderstorms then Mostly Cloudy | 2 to 6 mph S | 35% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Grand Lake, CO
Growing season
54 days
Hardiness zone
5a
Explore more for Grand Lake, CO: full frost dates · planting calendar · Colorado frost dates
Climate data from the nearest NOAA station, Grand Lake 1 Nw, Co (2.1 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.