Iliff, CO Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Iliff, a town in Logan County, Colorado.
This Afternoon
87°F
Slight Chance Showers And Thunderstorms
A slight chance of showers and thunderstorms after 4pm. Partly sunny. High near 87, with temperatures falling to around 85 in the afternoon. East northeast wind around 6 mph. Chance of precipitation is 20%.
7-day forecast for Iliff
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 87°F | Slight Chance Showers And Thunderstorms | 6 mph ENE | 19% |
| Tonight | 57°F | Showers And Thunderstorms Likely then Mostly Cloudy | 2 to 6 mph NW | 64% |
| Saturday | 77°F | Mostly Sunny then Chance Showers And Thunderstorms | 1 to 7 mph SSE | 55% |
| Saturday Night | 53°F | Showers And Thunderstorms then Chance Showers And Thunderstorms | 2 to 6 mph ENE | 88% |
| Sunday | 69°F | Showers And Thunderstorms Likely | 3 mph ENE | 66% |
| Sunday Night | 48°F | Chance Showers And Thunderstorms then Partly Cloudy | 3 mph N | 36% |
| Monday | 70°F | Mostly Sunny | 2 to 7 mph NNE | 9% |
| Monday Night | 50°F | Mostly Clear then Slight Chance Rain Showers | 7 to 10 mph ESE | 18% |
| Tuesday | 72°F | Partly Sunny | 10 to 21 mph SSE | 11% |
| Tuesday Night | 54°F | Chance Showers And Thunderstorms then Mostly Cloudy | 13 to 20 mph SE | 39% |
| Wednesday | 77°F | Partly Sunny | 9 to 13 mph SSE | 13% |
| Wednesday Night | 54°F | Chance Showers And Thunderstorms then Mostly Cloudy | 3 to 8 mph SSE | 26% |
| Thursday | 78°F | Mostly Sunny | 6 mph ESE | 7% |
| Thursday Night | 55°F | Slight Chance Showers And Thunderstorms | 6 mph SE | 15% |
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 Sep 18, 2026.