Johnstown, PA Weather Forecast
Local 7-day forecast
Mostly Cloudy
Track current conditions, temperature changes, wind, and the full daily outlook for Johnstown, PA in one place.
Mostly cloudy, with a low around 50. North wind around 6 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: Oct 15, 2026 4:13 AM EDT.
The active forecast window currently covers Oct 15 to Oct 21, 2026 for Johnstown, PA.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Oct 15 to Oct 21, 2026
- Latest sync
- Oct 15, 2026 4:13 AM EDT
- Forecast office
- CTP
- Source
- NOAA / NWS
Daily Outlook
This Week in Johnstown
Friday looks like the warmest upcoming period in Johnstown at 77 degrees F.
Saturday Night is the coolest period ahead with temperatures near 32 degrees F.
The strongest winds are forecast for Saturday at about 9 to 16 mph N.
Precipitation is mentioned in 3 upcoming forecast periods.
Forecast Details
- Last updated
- Oct 15, 2026 4:13 AM 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
Partly sunny, with a high near 64. East wind around 5 mph.
A chance of rain between 11pm and 2am, then rain and a slight chance of thunderstorms. Cloudy, with a low around 55. South wind 2 to 8 mph, with gusts as high as 22 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch possible.
A chance of rain and a slight chance of thunderstorms before 8am, then a chance of showers and thunderstorms between 2pm and 3pm, then showers and thunderstorms likely. Mostly cloudy, with a high near 77. Southwest wind 7 to 13 mph, with gusts as high as 26 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch possible.
A slight chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 42. Northwest wind 9 to 13 mph, with gusts as high as 29 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
Mostly sunny, with a high near 50.
Widespread frost after midnight. Mostly clear, with a low around 32.
Widespread frost before 9am. Sunny, with a high near 58.
Mostly clear, with a low around 36.
Areas of frost before 8am. Sunny, with a high near 62.
Partly cloudy, with a low around 40.
Mostly sunny, with a high near 64.
Partly cloudy, with a low around 41.
Sunny, with a high near 64.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Overnight
Oct 15
|
Mostly Cloudy
|
50°F |
6 mph
N
|
|
Thursday
Oct 15
|
Partly Sunny
|
64°F |
5 mph
E
|
|
Thursday Night
Oct 15
|
Light Rain
|
55°F |
2 to 8 mph
S
|
|
Friday
Oct 16
|
Chance Light Rain then Chance Showers And Thunderstorms
|
77°F |
7 to 13 mph
SW
|
|
Friday Night
Oct 16
|
Slight Chance Showers And Thunderstorms
|
42°F |
9 to 13 mph
NW
|
|
Saturday
Oct 17
|
Mostly Sunny
|
50°F |
9 to 16 mph
N
|
|
Saturday Night
Oct 17
|
Mostly Clear then Widespread Frost
|
32°F |
1 to 7 mph
NW
|
|
Sunday
Oct 18
|
Widespread Frost then Sunny
|
58°F |
3 mph
W
|
|
Sunday Night
Oct 18
|
Mostly Clear
|
36°F |
2 mph
S
|
|
Monday
Oct 19
|
Areas Of Frost then Sunny
|
62°F |
0 to 3 mph
SE
|
|
Monday Night
Oct 19
|
Partly Cloudy
|
40°F |
1 mph
E
|
|
Tuesday
Oct 20
|
Mostly Sunny
|
64°F |
1 mph
N
|
|
Tuesday Night
Oct 20
|
Partly Cloudy
|
41°F |
1 mph
N
|
|
Wednesday
Oct 21
|
Sunny
|
64°F |
2 mph
N
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Johnstown.