City of Johnstown Weather Forecast
Local 7-day forecast
Mostly Cloudy
Track current conditions, temperature changes, wind, and the full daily outlook for City of Johnstown in one place.
Mostly cloudy, with a high near 73. Southwest wind around 5 mph.
Local Weather Overview
This forecast page for City of Johnstown 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: Sep 15, 2026 8:34 AM EDT.
The active forecast window currently covers Sep 16 to Sep 21, 2026 for City of Johnstown.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Sep 16 to Sep 21, 2026
- Latest sync
- Sep 15, 2026 8:34 AM EDT
- Forecast office
- ALY
- Source
- NOAA / NWS
Daily Outlook
This Week in City of Johnstown
Wednesday looks like the warmest upcoming period in City of Johnstown at 73 degrees F.
Friday Night is the coolest period ahead with temperatures near 48 degrees F.
The strongest winds are forecast for Saturday Night at about 5 to 9 mph SE.
Precipitation is mentioned in 9 upcoming forecast periods.
Forecast Details
- Last updated
- Sep 15, 2026 8:34 AM EDT
- Coverage
- 6 days
- Time zone
- America/New_York
- Forecast office
- ALY
- Radar station
- KENX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
A slight chance of rain showers after 2am. Mostly cloudy, with a low around 60. Southwest wind around 2 mph. Chance of precipitation is 20%.
Rain showers likely. Mostly cloudy, with a high near 73. South wind around 3 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch possible.
Rain showers likely before 8pm, then a chance of showers and thunderstorms between 8pm and 2am. Mostly cloudy, with a low around 59. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch possible.
Mostly sunny, with a high near 70.
Partly cloudy, with a low around 48.
A slight chance of rain showers after 2pm. Partly sunny, with a high near 65.
A chance of rain showers before 2am, then showers and thunderstorms likely. Mostly cloudy, with a low around 55. Chance of precipitation is 70%.
Showers and thunderstorms likely. Mostly cloudy, with a high near 67. Chance of precipitation is 70%.
Rain showers likely. Mostly cloudy, with a low around 53. Chance of precipitation is 60%.
A chance of rain showers before 2pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 65. Chance of precipitation is 40%.
A chance of showers and thunderstorms. Mostly cloudy, with a low around 49.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Wednesday
Sep 16
|
Mostly Cloudy
|
73°F |
5 mph
SW
|
|
Wednesday Night
Sep 16
|
Mostly Cloudy then Slight Chance Rain Showers
|
60°F |
2 mph
SW
|
|
Thursday
Sep 17
|
Rain Showers Likely
|
73°F |
3 mph
S
|
|
Thursday Night
Sep 17
|
Chance Showers And Thunderstorms
|
59°F |
6 mph
W
|
|
Friday
Sep 18
|
Mostly Sunny
|
70°F |
8 mph
NW
|
|
Friday Night
Sep 18
|
Partly Cloudy
|
48°F |
2 to 6 mph
NE
|
|
Saturday
Sep 19
|
Partly Sunny then Slight Chance Rain Showers
|
65°F |
5 mph
E
|
|
Saturday Night
Sep 19
|
Showers And Thunderstorms Likely
|
55°F |
5 to 9 mph
SE
|
|
Sunday
Sep 20
|
Showers And Thunderstorms Likely
|
67°F |
9 mph
SW
|
|
Sunday Night
Sep 20
|
Rain Showers Likely
|
53°F |
7 mph
NW
|
|
Monday
Sep 21
|
Chance Rain Showers
|
65°F |
7 mph
NE
|
|
Monday Night
Sep 21
|
Chance Showers And Thunderstorms
|
49°F |
7 mph
E
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around City of Johnstown.