Iliff, CO Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Iliff, a town in Logan County, Colorado.
This Afternoon
55°F
Sunny
Sunny. High near 55, with temperatures falling to around 49 in the afternoon. North northwest wind 7 to 15 mph, with gusts as high as 26 mph.
7-day forecast for Iliff
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 55°F | Sunny | 7 to 15 mph NNW | 2% |
| Tonight | 27°F | Mostly Clear | 6 mph W | 2% |
| Wednesday | 58°F | Sunny | 3 to 7 mph NW | 1% |
| Wednesday Night | 30°F | Mostly Cloudy | 5 mph NW | 0% |
| Thursday | 58°F | Mostly Sunny | 0 to 5 mph NNW | 0% |
| Thursday Night | 28°F | Mostly Clear | 2 mph W | 0% |
| Friday | 60°F | Mostly Sunny | 1 to 5 mph NW | 1% |
| Friday Night | 30°F | Mostly Clear | 1 to 5 mph NW | 2% |
| Saturday | 61°F | Sunny | 1 to 9 mph WNW | 2% |
| Saturday Night | 29°F | Clear | 0 to 5 mph W | 1% |
| Sunday | 67°F | Sunny | 3 to 8 mph SW | 0% |
| Sunday Night | 35°F | Mostly Clear | 6 mph WSW | 0% |
| Monday | 65°F | Sunny | 2 to 7 mph NNW | 0% |
| Monday Night | 34°F | Partly Cloudy | 5 mph SSE | 0% |
Forecast source: National Weather Service (api.weather.gov) for Iliff (40.759, -103.066). Updated through the day.
Growing snapshot for Iliff
Last spring frost
May 11
First fall frost
Oct 4
Growing season
145 days
Hardiness zone
5b
More local growing data for Iliff: nearby ZIP 80736 weather · frost dates · planting calendar · Colorado frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Crook, Co (12.2 mi from Iliff). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.