Johnstown, PA Weather Forecast
Local 7-day forecast
Haze
Track current conditions, temperature changes, wind, and the full daily outlook for Johnstown, PA in one place.
Haze and patchy smoke after 8am. Sunny, with a high near 90. West wind 3 to 9 mph.
Local Weather Overview
This forecast page for Johnstown, PA 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 14, 2026 9:03 PM EDT.
The active forecast window currently covers Jul 15 to Jul 21, 2026 for Johnstown, PA.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jul 15 to Jul 21, 2026
- Latest sync
- Jul 14, 2026 9:03 PM EDT
- Forecast office
- CTP
- Source
- NOAA / NWS
Daily Outlook
This Week in Johnstown
Wednesday looks like the warmest upcoming period in Johnstown at 90 degrees F.
Sunday Night is the coolest period ahead with temperatures near 63 degrees F.
The strongest winds are forecast for Tuesday at about 5 to 10 mph W.
Precipitation is mentioned in 9 upcoming forecast periods.
Forecast Details
- Last updated
- Jul 14, 2026 9:03 PM EDT
- Coverage
- 7 days
- Time zone
- America/New_York
- Forecast office
- CTP
- Radar station
- KCCX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Haze and patchy smoke before 8pm. Partly cloudy, with a low around 68. West wind 0 to 7 mph.
Haze and areas of smoke after 8am. Mostly sunny, with a high near 88. West wind 0 to 8 mph.
Haze and areas of smoke before 8pm. Mostly clear, with a low around 64. Northwest wind 0 to 7 mph.
A slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 86. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
A chance of showers and thunderstorms. Mostly cloudy, with a low around 65. Chance of precipitation is 50%.
A chance of showers and thunderstorms before 8am, then showers and thunderstorms likely. Mostly cloudy, with a high near 83. Chance of precipitation is 70%.
Showers and thunderstorms likely. Mostly cloudy, with a low around 66. Chance of precipitation is 70%.
Rain showers likely before 2pm, then a chance of showers and thunderstorms. Mostly cloudy, with a high near 81. Chance of precipitation is 60%.
A chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 63. Chance of precipitation is 50%.
A slight chance of rain showers between 8am and 2pm, then a chance of showers and thunderstorms. Mostly sunny, with a high near 83. Chance of precipitation is 30%.
A chance of showers and thunderstorms before 8pm, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 65. Chance of precipitation is 50%.
A chance of rain showers before 2pm, then showers and thunderstorms likely. Partly sunny, with a high near 80.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Wednesday
Jul 15
|
Haze
|
90°F |
3 to 9 mph
W
|
|
Wednesday Night
Jul 15
|
Haze then Partly Cloudy
|
68°F |
0 to 7 mph
W
|
|
Thursday
Jul 16
|
Haze
|
88°F |
0 to 8 mph
W
|
|
Thursday Night
Jul 16
|
Haze then Mostly Clear
|
64°F |
0 to 7 mph
NW
|
|
Friday
Jul 17
|
Mostly Sunny then Slight Chance Showers And Thunderstorms
|
86°F |
0 to 3 mph
W
|
|
Friday Night
Jul 17
|
Chance Showers And Thunderstorms
|
65°F |
2 mph
SE
|
|
Saturday
Jul 18
|
Chance Showers And Thunderstorms then Showers And Thunderstorms Likely
|
83°F |
2 to 7 mph
SW
|
|
Saturday Night
Jul 18
|
Showers And Thunderstorms Likely
|
66°F |
7 mph
W
|
|
Sunday
Jul 19
|
Rain Showers Likely then Chance Showers And Thunderstorms
|
81°F |
8 mph
W
|
|
Sunday Night
Jul 19
|
Chance Showers And Thunderstorms
|
63°F |
1 to 7 mph
W
|
|
Monday
Jul 20
|
Slight Chance Rain Showers then Chance Showers And Thunderstorms
|
83°F |
1 to 7 mph
SW
|
|
Monday Night
Jul 20
|
Chance Showers And Thunderstorms
|
65°F |
6 mph
SW
|
|
Tuesday
Jul 21
|
Showers And Thunderstorms Likely
|
80°F |
5 to 10 mph
W
|
Nearby Forecasts
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