Julesburg, CO Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Julesburg, a town in Sedgwick County, Colorado.
Tonight
59°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms before midnight, then a chance of showers and thunderstorms between midnight and 2am, then a slight chance of showers and thunderstorms. Mostly cloudy. Low around 59, with temperatures rising to around 61 overnight. North wind 2 to 6 mph. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast for Julesburg
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 59°F | Chance Showers And Thunderstorms | 2 to 6 mph N | 49% |
| Saturday | 74°F | Chance Showers And Thunderstorms | 3 to 8 mph NE | 36% |
| Saturday Night | 55°F | Showers And Thunderstorms | 5 to 9 mph ENE | 83% |
| Sunday | 67°F | Showers And Thunderstorms | 6 mph E | 82% |
| Sunday Night | 51°F | Showers And Thunderstorms Likely | 5 mph NNE | 59% |
| Monday | 68°F | Mostly Sunny | 7 mph N | 12% |
| Monday Night | 50°F | Partly Cloudy then Slight Chance Rain Showers | 8 to 12 mph ESE | 17% |
| Tuesday | 67°F | Mostly Cloudy | 13 to 20 mph SSE | 14% |
| Tuesday Night | 55°F | Chance Showers And Thunderstorms | 18 mph SE | 37% |
| Wednesday | 73°F | Partly Sunny then Slight Chance Showers And Thunderstorms | 14 to 17 mph SSE | 18% |
| Wednesday Night | 55°F | Chance Showers And Thunderstorms then Mostly Cloudy | 7 to 13 mph SSE | 31% |
| Thursday | 75°F | Partly Sunny | 8 mph SE | 8% |
| Thursday Night | 56°F | Slight Chance Rain Showers | 8 mph ESE | 16% |
| Friday | 74°F | Partly Sunny | 8 to 13 mph SE | 14% |
Forecast source: National Weather Service (api.weather.gov) for Julesburg (40.985, -102.263). Updated through the day.
Growing snapshot for Julesburg
Last spring frost
May 7
First fall frost
Oct 6
Growing season
152 days
Hardiness zone
5b
More local growing data for Julesburg: nearby ZIP 80737 weather · frost dates · planting calendar · Colorado frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Julesburg, Co (7.3 mi from Julesburg). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.