| National Weather Service Forecast for:
Johnstown CO Issued by: National Weather Service Denver-Boulder, CO |
||||||||||||||||||
| Updated: 2:21 pm MST Dec 4, 2025 | ||||||||||||||||||
|
| Overnight |
Mostly cloudy, with a steady temperature around 18. West southwest wind around 5 mph becoming light and variable. |
| Friday |
Partly sunny, with a high near 35. Light and variable wind becoming east around 6 mph in the morning. |
| Friday Night |
Mostly cloudy, with a low around 17. South wind 3 to 5 mph. |
| Saturday |
A slight chance of snow showers, mixing with rain after 8am, then gradually ending. Mostly sunny, with a high near 46. Breezy, with a northwest wind 8 to 16 mph, with gusts as high as 23 mph. Chance of precipitation is 20%. |
| Saturday Night |
Partly cloudy, with a low around 19. West northwest wind 5 to 8 mph. |
| Sunday |
Sunny, with a high near 42. |
| Sunday Night |
Partly cloudy, with a low around 19. |
| Monday |
Mostly sunny, with a high near 48. |
| Monday Night |
Partly cloudy, with a low around 24. |
| Tuesday |
Partly sunny, with a high near 52. |
| Tuesday Night |
A slight chance of rain and snow showers. Mostly cloudy, with a low around 32. |
| Wednesday |
A chance of rain and snow showers. Partly sunny, with a high near 51. |
| Wednesday Night |
A chance of rain and snow showers. Mostly cloudy, with a low around 29. |
| Thursday |
A slight chance of rain and snow showers. Mostly sunny, with a high near 51. |
Forecast from NOAA-NWS for Johnstown CO.
