Johnstown, CO Weather Forecast
Local 7-day forecast
Mostly Clear
Track current conditions, temperature changes, wind, and the full daily outlook for Johnstown, CO in one place.
Mostly clear. Low around 60, with temperatures rising to around 62 overnight. North northeast wind 3 to 10 mph, with gusts as high as 20 mph.
Local Weather Overview
This forecast page for Johnstown, CO is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: Jul 11, 2026 10:11 PM MDT.
The active forecast window currently covers Jul 11 to Jul 18, 2026 for Johnstown, CO.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jul 11 to Jul 18, 2026
- Latest sync
- Jul 11, 2026 10:11 PM MDT
- Forecast office
- BOU
- Source
- NOAA / NWS
Daily Outlook
This Week in Johnstown
Tuesday looks like the warmest upcoming period in Johnstown at 98 degrees F.
Tonight is the coolest period ahead with temperatures near 60 degrees F.
The strongest winds are forecast for Tuesday Night at about 6 to 22 mph SE.
The forecast from Jul 11 through Jul 18 stays mostly dry.
Forecast Details
- Last updated
- Jul 11, 2026 10:11 PM MDT
- Coverage
- 7 days
- Time zone
- America/Denver
- Forecast office
- BOU
- Radar station
- KFTG
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Sunny. High near 96, with temperatures falling to around 94 in the afternoon. East northeast wind 3 to 14 mph, with gusts as high as 23 mph.
Clear. Low around 64, with temperatures rising to around 66 overnight. East southeast wind 5 to 15 mph, with gusts as high as 26 mph.
Sunny, with a high near 97. East wind 5 to 15 mph, with gusts as high as 25 mph.
Mostly clear, with a low around 64. Southeast wind 5 to 16 mph, with gusts as high as 29 mph.
Sunny, with a high near 98.
Mostly clear, with a low around 64.
Sunny, with a high near 96.
Mostly clear, with a low around 62.
Sunny, with a high near 95.
Mostly clear, with a low around 63.
Sunny, with a high near 96.
Mostly clear, with a low around 64.
Sunny, with a high near 94.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Tonight
Jul 11
|
Mostly Clear
|
60°F |
3 to 10 mph
NNE
|
|
Sunday
Jul 12
|
Sunny
|
96°F |
3 to 14 mph
ENE
|
|
Sunday Night
Jul 12
|
Clear
|
64°F |
5 to 15 mph
ESE
|
|
Monday
Jul 13
|
Sunny
|
97°F |
5 to 15 mph
E
|
|
Monday Night
Jul 13
|
Mostly Clear
|
64°F |
5 to 16 mph
SE
|
|
Tuesday
Jul 14
|
Sunny
|
98°F |
6 to 16 mph
E
|
|
Tuesday Night
Jul 14
|
Mostly Clear
|
64°F |
6 to 22 mph
SE
|
|
Wednesday
Jul 15
|
Sunny
|
96°F |
5 to 21 mph
ENE
|
|
Wednesday Night
Jul 15
|
Mostly Clear
|
62°F |
5 to 22 mph
ESE
|
|
Thursday
Jul 16
|
Sunny
|
95°F |
5 to 16 mph
NNE
|
|
Thursday Night
Jul 16
|
Mostly Clear
|
63°F |
7 to 20 mph
E
|
|
Friday
Jul 17
|
Sunny
|
96°F |
6 to 14 mph
NNE
|
|
Friday Night
Jul 17
|
Mostly Clear
|
64°F |
9 to 15 mph
NNW
|
|
Saturday
Jul 18
|
Sunny
|
94°F |
9 to 13 mph
NNE
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Johnstown.
