I-25 weather conditions near Johnstown, Colorado
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Seasoned Weather Conditions
Current Weather Conditions
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7 day weather forecast
Current condition: Fair 64°F 2025-09-18T19:56:00-06:00 
Tonight 2025-09-18, Mostly Clear. Mostly clear, with a low around 46. South southeast wind 5 to 7 mph becoming calm.
Friday 2025-09-19, Sunny. Sunny, with a high near 81. Calm wind becoming east southeast 5 to 7 mph in the afternoon.
Friday Night 2025-09-19, Mostly Cloudy. Mostly cloudy, with a low around 52. East southeast wind around 6 mph becoming calm after midnight.
Saturday 2025-09-20, Partly Sunny. Partly sunny, with a high near 81. Calm wind becoming north around 6 mph in the afternoon. Winds could gust as high as 15 mph.- Saturday Night 2025-09-20, Partly Cloudy. Partly cloudy, with a low around 51. Northwest wind around 6 mph becoming west southwest in the evening.
Sunday 2025-09-21, Mostly Sunny. Mostly sunny, with a high near 82.- Sunday Night 2025-09-21, Partly Cloudy. Partly cloudy, with a low around 51.
Monday 2025-09-22, Mostly Sunny then Chance Showers. A chance of showers and thunderstorms after noon. Mostly sunny, with a high near 76.
Monday Night 2025-09-22, Slight Chance Showers then Mostly Clear. A slight chance of showers before midnight. Mostly clear, with a low around 44.
- Tuesday 2025-09-23, Sunny. Sunny, with a high near 74.
- Tuesday Night 2025-09-23, Mostly Clear. Mostly clear, with a low around 45.
- Wednesday 2025-09-24, Sunny. Sunny, with a high near 77.
- Wednesday Night 2025-09-24, Mostly Clear. Mostly clear, with a low around 47.
- Thursday 2025-09-25, Mostly Sunny. Mostly sunny, with a high near 81.