Currently: 42 °F. Clear. (Weather station: Fort Collins-Loveland Municipal Airport, USA). See more current weatherJohnstown Extended Forecast with high and low temperatures
2 Week Extended Forecast in Johnstown, Colorado, USA
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| Conditions | Comfort | Precipitation | Sun | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Day | Temperature | Weather | Feels Like | Wind | Humidity | Chance | Amount | UV | Sunrise | Sunset | ||
| Fri Dec 12 |  | 60 / 30 °F | Afternoon clouds. | 59 °F | 4 mph | ↑ | 34% | 2% | 0.00" | 0 (Low) | 7:13 am | 4:33 pm |
| Sat Dec 13 |  | 58 / 28 °F | Scattered clouds. | 50 °F | 15 mph | ↑ | 26% | 0% | 0.00" | 0 (Low) | 7:14 am | 4:33 pm |
| Sun Dec 14 | | 55 / 23 °F | Morning clouds. | 54 °F | 1 mph | ↑ | 27% | 0% | 0.00" | 0 (Low) | 7:14 am | 4:34 pm |
| Mon Dec 15 | | 59 / 26 °F | Mostly sunny. | 56 °F | 4 mph | ↑ | 18% | 0% | 0.00" | 0 (Low) | 7:15 am | 4:34 pm |
| Tue Dec 16 |  | 62 / 26 °F | Cloudy. | 59 °F | 3 mph | ↑ | 22% | 0% | 0.00" | 0 (Low) | 7:16 am | 4:34 pm |
| Wed Dec 17 | | 67 / 32 °F | Overcast. | 63 °F | 5 mph | ↑ | 29% | 0% | 0.00" | 0 (Low) | 7:16 am | 4:35 pm |
| Thu Dec 18 | | 52 / 27 °F | Cloudy. | 49 °F | 3 mph | ↑ | 45% | 0% | 0.00" | 0 (Low) | 7:17 am | 4:35 pm |
| Fri Dec 19 | | 57 / 27 °F | Cloudy. | 55 °F | 3 mph | ↑ | 29% | 4% | 0.00" | 0 (Low) | 7:18 am | 4:35 pm |
| Sat Dec 20 |  | 56 / 33 °F | Mostly cloudy. | 53 °F | 7 mph | ↑ | 31% | 4% | 0.00" | 0 (Low) | 7:18 am | 4:36 pm |
| Sun Dec 21 | | 51 / 29 °F | Mostly sunny. | 50 °F | 3 mph | ↑ | 46% | 6% | 0.00" | 0 (Low) | 7:19 am | 4:36 pm |
| Mon Dec 22 |  | 49 / 28 °F | Sunny. | 42 °F | 17 mph | ↑ | 18% | 39% | 0.04" | 0 (Low) | 7:19 am | 4:37 pm |
| Tue Dec 23 | | 39 / 22 °F | Mostly sunny. | 39 °F | 4 mph | ↑ | 26% | 3% | 0.00" | 0 (Low) | 7:20 am | 4:37 pm |
| Wed Dec 24 | | 40 / 19 °F | Increasing cloudiness. | 39 °F | 2 mph | ↑ | 23% | 4% | 0.00" | 0 (Low) | 7:20 am | 4:38 pm |
| Thu Dec 25 | | 46 / 20 °F | Mostly cloudy. | 38 °F | 7 mph | ↑ | 35% | 6% | 0.00" | 0 (Low) | 7:20 am | 4:39 pm |
| Fri Dec 26 | | 47 / 22 °F | Afternoon clouds. | 46 °F | 3 mph | ↑ | 41% | 5% | 0.00" | 0 (Low) | 7:21 am | 4:39 pm |
| * Updated Friday, December 12, 2025 2:24:05 pm Johnstown time - Weather by CustomWeather, © 2025 | ||||||||||||