Johnstown, NY Weather Forecast
Local 7-day forecast
Chance Showers And Thunderstorms
Track current conditions, temperature changes, wind, and the full daily outlook for Johnstown, NY in one place.
A chance of rain showers before 11am, then a chance of showers and thunderstorms. Mostly cloudy, with a high near 66. West wind around 7 mph. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch possible.
Local Weather Overview
This forecast page for Johnstown, NY 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: Apr 15, 2026 3:35 PM EDT.
The active forecast window currently covers Apr 17 to Apr 21, 2026 for Johnstown, NY.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Apr 17 to Apr 21, 2026
- Latest sync
- Apr 15, 2026 3:35 PM EDT
- Forecast office
- ALY
- Source
- NOAA / NWS
Daily Outlook
This Week in Johnstown
Saturday looks like the warmest upcoming period in Johnstown at 70 degrees F.
Monday Night is the coolest period ahead with temperatures near 26 degrees F.
The strongest winds are forecast for Monday at about 16 mph W.
Precipitation is mentioned in 8 upcoming forecast periods.
Forecast Details
- Last updated
- Apr 15, 2026 3:35 PM EDT
- Coverage
- 5 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 chance of rain showers before 8pm. Mostly cloudy, with a low around 51. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible.
A slight chance of rain showers after 2pm. Partly sunny, with a high near 70.
Rain showers likely. Mostly cloudy, with a low around 43. Chance of precipitation is 60%.
Rain showers likely. Mostly cloudy, with a high near 55. Chance of precipitation is 60%.
Rain showers likely before 8pm, then a chance of rain and snow showers. Mostly cloudy, with a low around 29. Chance of precipitation is 60%.
A chance of snow showers before 2pm. Partly sunny, with a high near 39. Chance of precipitation is 30%.
Partly cloudy, with a low around 26.
Mostly sunny, with a high near 52.
A chance of rain showers after 8pm. Mostly cloudy, with a low around 39.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Friday
Apr 17
|
Chance Showers And Thunderstorms
|
66°F |
7 mph
W
|
|
Friday Night
Apr 17
|
Chance Rain Showers then Mostly Cloudy
|
51°F |
6 mph
NE
|
|
Saturday
Apr 18
|
Partly Sunny then Slight Chance Rain Showers
|
70°F |
3 to 10 mph
SE
|
|
Saturday Night
Apr 18
|
Rain Showers Likely
|
43°F |
9 mph
S
|
|
Sunday
Apr 19
|
Rain Showers Likely
|
55°F |
9 to 13 mph
W
|
|
Sunday Night
Apr 19
|
Chance Rain And Snow Showers
|
29°F |
13 mph
W
|
|
Monday
Apr 20
|
Chance Snow Showers
|
39°F |
16 mph
W
|
|
Monday Night
Apr 20
|
Partly Cloudy
|
26°F |
7 to 15 mph
W
|
|
Tuesday
Apr 21
|
Mostly Sunny
|
52°F |
7 to 10 mph
W
|
|
Tuesday Night
Apr 21
|
Chance Rain Showers
|
39°F |
8 mph
SW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Johnstown.
