| National Weather Service Forecast for:
Johnstown CO Issued by: National Weather Service Denver-Boulder, CO |
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| Updated: 2:46 am MDT Jul 13, 2026 | ||||||||||||||||||
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| Overnight |
Clear, with a low around 62. Southeast wind 6 to 8 mph becoming north northeast. Winds could gust as high as 15 mph. |
| Monday |
Sunny and hot, with a high near 98. Breezy, with a light and variable wind becoming east southeast 10 to 15 mph in the morning. Winds could gust as high as 25 mph. |
| Monday Night |
Mostly clear, with a low around 64. Breezy, with an east southeast wind 12 to 17 mph becoming northeast 5 to 10 mph after midnight. Winds could gust as high as 29 mph. |
| Tuesday |
Sunny and hot, with a high near 98. Breezy, with a north wind 6 to 11 mph becoming east southeast 15 to 20 mph in the afternoon. Winds could gust as high as 31 mph. |
| Tuesday Night |
Mostly clear, with a low around 64. Breezy, with an east southeast wind 16 to 21 mph decreasing to 6 to 11 mph after midnight. Winds could gust as high as 37 mph. |
| Wednesday |
Sunny, with a high near 96. Breezy. |
| Wednesday Night |
Mostly clear, with a low around 63. Breezy. |
| Thursday |
Sunny, with a high near 96. Breezy. |
| Thursday Night |
Mostly clear, with a low around 64. Breezy. |
| Friday |
Sunny, with a high near 96. Breezy. |
| Friday Night |
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 64. Breezy. |
| Saturday |
Sunny, with a high near 96. |
| Saturday Night |
Partly cloudy, with a low around 64. |
| Sunday |
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 94. |
Forecast from NOAA-NWS for Johnstown CO.
