Haswell, CO Weather & Growing Conditions
Today
56°F
Mostly Sunny then Chance Rain Showers
A chance of rain showers after 5pm. Mostly sunny. High near 56, with temperatures falling to around 50 in the afternoon. East wind 6 to 10 mph, with gusts as high as 18 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 56°F | Mostly Sunny then Chance Rain Showers | 6 to 10 mph E | 31% |
| Tonight | 35°F | Chance Rain Showers | 9 to 13 mph NNE | 46% |
| Thursday | 57°F | Mostly Sunny | 3 to 14 mph N | 0% |
| Thursday Night | 34°F | Partly Cloudy | 3 mph SSE | 0% |
| Friday | 56°F | Partly Sunny | 2 to 8 mph SSE | 2% |
| Friday Night | 33°F | Partly Cloudy | 7 mph NE | 2% |
| Saturday | 59°F | Sunny | 5 to 9 mph N | 2% |
| Saturday Night | 33°F | Mostly Clear | 5 mph NW | 0% |
| Sunday | 61°F | Sunny | 5 to 10 mph SW | 0% |
| Sunday Night | 36°F | Mostly Clear | 5 mph WSW | 0% |
| Monday | 65°F | Sunny | 7 mph NNE | 0% |
| Monday Night | 37°F | Partly Cloudy | 5 mph NNE | 0% |
| Tuesday | 63°F | Mostly Sunny | 7 mph ESE | 0% |
| Tuesday Night | 39°F | Partly Cloudy | 3 to 8 mph W | 0% |
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 Nov 4, 2026.