Johnstown, OH Weather Forecast
Local 7-day forecast
Clear
Track current conditions, temperature changes, wind, and the full daily outlook for Johnstown, OH in one place.
Clear, with a low around 67. East wind around 3 mph. New rainfall amounts less than a tenth of an inch possible.
Local Weather Overview
This forecast page for Johnstown, OH 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 2:05 AM EDT.
The active forecast window currently covers Jul 14 to Jul 20, 2026 for Johnstown, OH.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jul 14 to Jul 20, 2026
- Latest sync
- Jul 14, 2026 2:05 AM EDT
- Forecast office
- ILN
- Source
- NOAA / NWS
Daily Outlook
This Week in Johnstown
Wednesday looks like the warmest upcoming period in Johnstown at 92 degrees F.
Sunday Night is the coolest period ahead with temperatures near 64 degrees F.
The strongest winds are forecast for Sunday at about 10 to 15 mph NW.
Precipitation is mentioned in 7 upcoming forecast periods.
Forecast Details
- Last updated
- Jul 14, 2026 2:05 AM EDT
- Coverage
- 7 days
- Time zone
- America/New_York
- Forecast office
- ILN
- Radar station
- KILN
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Sunny, with a high near 89. West wind around 3 mph.
Clear, with a low around 70. West wind around 5 mph.
Sunny, with a high near 92. West wind 5 to 8 mph.
Mostly clear, with a low around 72. West wind 5 to 8 mph.
Sunny, with a high near 92.
Mostly clear, with a low around 71.
Sunny, with a high near 91.
A slight chance of showers and thunderstorms after 8pm. Partly cloudy, with a low around 72.
A chance of showers and thunderstorms before 2pm, then showers and thunderstorms likely. Partly sunny, with a high near 88. Chance of precipitation is 60%.
Showers and thunderstorms likely before 8pm, then a chance of showers and thunderstorms between 8pm and 2am, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 69. Chance of precipitation is 60%.
A chance of showers and thunderstorms before 2pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 84. Chance of precipitation is 40%.
A chance of showers and thunderstorms. Mostly cloudy, with a low around 64. Chance of precipitation is 40%.
A chance of showers and thunderstorms. Mostly sunny, with a high near 82.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Overnight
Jul 14
|
Clear
|
67°F |
3 mph
E
|
|
Tuesday
Jul 14
|
Sunny
|
89°F |
3 mph
W
|
|
Tuesday Night
Jul 14
|
Clear
|
70°F |
5 mph
W
|
|
Wednesday
Jul 15
|
Sunny
|
92°F |
5 to 8 mph
W
|
|
Wednesday Night
Jul 15
|
Mostly Clear
|
72°F |
5 to 8 mph
W
|
|
Thursday
Jul 16
|
Sunny
|
92°F |
5 to 9 mph
NW
|
|
Thursday Night
Jul 16
|
Mostly Clear
|
71°F |
5 to 8 mph
NW
|
|
Friday
Jul 17
|
Sunny
|
91°F |
5 to 12 mph
W
|
|
Friday Night
Jul 17
|
Slight Chance Showers And Thunderstorms
|
72°F |
8 to 12 mph
W
|
|
Saturday
Jul 18
|
Chance Showers And Thunderstorms
|
88°F |
9 to 14 mph
SW
|
|
Saturday Night
Jul 18
|
Showers And Thunderstorms Likely then Chance Showers And Thunderstorms
|
69°F |
9 to 13 mph
W
|
|
Sunday
Jul 19
|
Chance Showers And Thunderstorms
|
84°F |
10 to 15 mph
NW
|
|
Sunday Night
Jul 19
|
Chance Showers And Thunderstorms
|
64°F |
9 to 14 mph
N
|
|
Monday
Jul 20
|
Chance Showers And Thunderstorms
|
82°F |
8 to 12 mph
W
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Johnstown.
