Haswell, CO Weather & Growing Conditions
Today
79°F
Patchy Smoke
Patchy smoke before 3pm. Mostly sunny, with a high near 79. Northeast wind 12 to 22 mph, with gusts as high as 35 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 79°F | Patchy Smoke | 12 to 22 mph NE | 4% |
| Tonight | 56°F | Patchy Smoke | 7 to 12 mph ESE | 10% |
| Wednesday | 84°F | Mostly Sunny | 6 to 16 mph ESE | 0% |
| Wednesday Night | 56°F | Mostly Clear | 3 to 16 mph ESE | 8% |
| Thursday | 91°F | Sunny | 5 to 12 mph SSE | 1% |
| Thursday Night | 61°F | Mostly Clear | 3 to 13 mph ESE | 1% |
| Friday | 95°F | Sunny | 3 to 10 mph NE | 1% |
| Friday Night | 61°F | Mostly Clear | 3 to 12 mph SSE | 2% |
| Saturday | 97°F | Sunny | 3 to 13 mph SSW | 0% |
| Saturday Night | 64°F | Mostly Clear | 7 to 16 mph S | 1% |
| Sunday | 98°F | Sunny | 6 to 13 mph SSW | 1% |
| Sunday Night | 65°F | Mostly Clear | 6 to 14 mph S | 1% |
| Monday | 98°F | Sunny | 5 to 13 mph S | 1% |
| Monday Night | 64°F | Partly Cloudy | 8 to 14 mph E | 8% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Haswell, CO
Last spring frost
May 9
First fall frost
Oct 6
Growing season
149 days
Hardiness zone
5b
Explore more for Haswell, CO: full frost dates · planting calendar · Colorado frost dates
Climate data from the nearest NOAA station, Karval, Co (8.6 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.