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Johnstown, CO Weather Forecast

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Johnstown, CO Weather Forecast

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Johnstown CO weather - Clear - 60°F
Clear
60°F
Updated 7:29 am
Feels Like 54°F
Humidity 72%
Wind N 8 mph
Barometer  30.05 in
Dew Point 51°F
Johnstown CO weather - Clear - 16°C
Clear
16°C
Updated 7:29 am
Feels Like 12°C
Humidity 72%
Wind N 13 km/h
Barometer  101.8 kPa
Dew Point 11°C
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Johnstown Weather Forecast

TODAY TONIGHT FRIDAY FRIDAY NIGHT SATURDAY SATURDAY NIGHT SUNDAY SUNDAY NIGHT LABOR DAY MONDAY NIGHT TUESDAY TUESDAY NIGHT
Johnstown, CO Weather - Today Mostly Sunny Johnstown, CO Weather - Tonight Mostly Clear Johnstown, CO Weather - Friday Partly Cloudy Johnstown, CO Weather - Friday Night Partly Cloudy Johnstown, CO Weather - Saturday Partly Cloudy Johnstown, CO Weather - Saturday Night Chance Of T-Storm Johnstown, CO Weather - Sunday Chance Of T-Storm Johnstown, CO Weather - Sunday Night Chance Of T-Storm Johnstown, CO Weather - Labor Day Chance Of T-Storm Johnstown, CO Weather - Monday Night Chance Of T-Storm Johnstown, CO Weather - Tuesday Chance Of T-Storm Johnstown, CO Weather - Tuesday Night Chance Of T-Storm
Mostly Sunny Mostly Clear Partly Cloudy Partly Cloudy Partly Cloudy Chance of T-Storm Chance of T-Storm Chance of T-Storm Chance of T-Storm Chance of T-Storm Chance of T-Storm Chance of T-Storm
Hi: 93°FHi: 34°C
 Lo: 60°FLo: 16°C Hi: 93°FHi: 34°C
 Lo: 60°FLo: 16°C Hi: 93°FHi: 34°C
 Lo: 63°FLo: 17°C Hi: 90°FHi: 32°C
 Lo: 63°FLo: 17°C Hi: 90°FHi: 32°C
 Lo: 60°FLo: 16°C Hi: 87°FHi: 31°C
 Lo: 56°FLo: 13°C
POP: 30% POP: 20% POP: 40% POP: 30% POP: 50% POP: 20% POP: 40%
POP = Probability of Precipitation.
Weather Outlook Updated: 605 AM MDT Thu Sep 03 2026 Johnstown, CO Weather - WeatherWorld.com

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Issued: 526 AM MDT Thu Sep 3 2026

Key Messages

  • Warmer Thursday and Friday with mainly dry conditions.
  • Return of better moisture by the weekend with an increasingchance for showers and thunderstorms.
  • Still no significant pattern change on the horizon, with above normal temperatures continuing into next week.

Discussion

/Through Wednesday/... Issued at 133 AM MDT Thu Sep 3 2026

Generally dry southwesterly flow aloft continues today. The main players of the week - a strong closed 500mb low over the Pacific Northwest, and a broad ridge ...