Iliff, CO Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Iliff, a town in Logan County, Colorado.
Today
73°F
Patchy Smoke
Patchy smoke. Mostly cloudy, with a high near 73. East northeast wind around 12 mph, with gusts as high as 18 mph.
7-day forecast for Iliff
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 73°F | Patchy Smoke | 12 mph ENE | 2% |
| Tonight | 54°F | Patchy Smoke | 6 to 12 mph ESE | 22% |
| Wednesday | 80°F | Patchy Smoke | 5 to 12 mph ESE | 21% |
| Wednesday Night | 56°F | Patchy Smoke then Mostly Clear | 5 to 12 mph SSE | 1% |
| Thursday | 93°F | Sunny | 6 to 10 mph S | 3% |
| Thursday Night | 61°F | Clear | 3 to 12 mph SSE | 3% |
| Friday | 97°F | Sunny | 2 to 10 mph S | 2% |
| Friday Night | 65°F | Clear | 7 to 13 mph S | 2% |
| Saturday | 102°F | Sunny | 7 to 13 mph WNW | 1% |
| Saturday Night | 65°F | Mostly Clear | 6 to 14 mph SSE | 1% |
| Sunday | 101°F | Sunny | 6 to 13 mph S | 3% |
| Sunday Night | 66°F | Partly Cloudy | 5 to 14 mph S | 10% |
| Monday | 99°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 5 to 12 mph NNW | 15% |
| Monday Night | 65°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 5 to 12 mph E | 22% |
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 Aug 4, 2026.