Live Weather & Forecast
Weather in Johnstown
Pennsylvania, United States · Real-time conditions & 3-day outlook
4°C
Feels like 3°C
39°F / Feels 37°F
Clear
Johnstown, Pennsylvania
🌙 Nighttime
Updated: 2026-04-12 03:45
Humidity
62%
Wind
5.8 km/h SE
Wind Gust
12.1 km/h
Pressure
1029 mb
Visibility
16 km
UV Index
0
(Low)
Precipitation
0 mm
Cloud Cover
0%
Dew Point
-4°C
Wind Degree
124°
Air Quality Index
US EPA: Good
UK DEFRA: Low (1)
CO
197.9 μg/m³
NO₂
7.2 μg/m³
O₃
69 μg/m³
SO₂
5 μg/m³
PM 2.5
10.2 μg/m³
PM 10
10.4 μg/m³
Today's Hourly Forecast
24-hour breakdown for Johnstown, Pennsylvania
12 AM
7°
Clear
1 AM
6°
Clear
2 AM
6°
Clear
3 AM
4°
Clear
4 AM
5°
Clear
5 AM
4°
Clear
6 AM
4°
Clear
7 AM
5°
Sunny
8 AM
7°
Sunny
9 AM
10°
Sunny
10 AM
13°
Sunny
11 AM
16°
Sunny
12 PM
19°
Sunny
1 PM
22°
Sunny
2 PM
24°
Sunny
3 PM
24°
Sunny
4 PM
25°
Sunny
5 PM
22°
Sunny
6 PM
20°
Cloudy
7 PM
17°
Partly Cloudy
8 PM
16°
Partly Cloudy
9 PM
15°
Clear
10 PM
14°
Cloudy
11 PM
14°
Partly Cloudy
3-Day Forecast
Daily overview for Johnstown, Pennsylvania
Today
Sunny
26°
/
4°
🌧️ 0% chance of rain
💧 Avg. humidity: 54%
💨 Max wind: 18.4 km/h
🌧️ Total precip: 0 mm
☀️ UV Index: 1.5
🌅 Sunrise: 06:42 AM
🌇 Sunset: 07:52 PM
🌙 Waning Crescent
🌑 Moon: 33% lit
Mon, Apr 13
Patchy rain nearby
18°
/
13°
🌧️ 89% chance of rain
💧 Avg. humidity: 80%
💨 Max wind: 27.7 km/h
🌧️ Total precip: 3.47 mm
☀️ UV Index: 0.8
🌅 Sunrise: 06:40 AM
🌇 Sunset: 07:53 PM
🌙 Waning Crescent
🌑 Moon: 23% lit
Tue, Apr 14
Partly Cloudy
21°
/
17°
🌧️ 0% chance of rain
💧 Avg. humidity: 75%
💨 Max wind: 23.4 km/h
🌧️ Total precip: 0 mm
☀️ UV Index: 1.9
🌅 Sunrise: 06:39 AM
🌇 Sunset: 07:54 PM
🌙 Waning Crescent
🌑 Moon: 15% lit
Best Time to Visit Johnstown
Plan your trip to Johnstown, United States around the most favorable weather conditions.
Peak Season
June – September
Warm, dry summers — ideal for outdoor activities.
Shoulder Season
April – May, October
Fewer crowds, moderate prices, mild weather.
Off Season
November – March
Cooler temperatures; some regions may experience rain or snow.
Frequently Asked Questions
People also ask — answers optimized for search engines and voice queries.
What is the current weather in Johnstown?
Current conditions in Johnstown: Clear, temperature 4°C, humidity 62%.
What is the best time to visit Johnstown?
The best time to visit Johnstown is typically June – September. Warm, dry summers — ideal for outdoor activities.
What is the climate like in Johnstown?
Johnstown is located at approximately 40.3° latitude. It has a temperate climate with warm summers and cold winters.
Does it rain a lot in Johnstown?
The wettest period in Johnstown is typically during November – March. Cooler temperatures; some regions may experience rain or snow.
What should I pack for a trip to Johnstown?
For visits to Johnstown during June – September: light clothing and sun protection. For November – March: layers and a waterproof jacket are recommended.
What country is Johnstown in?
Johnstown is located in United States, in the state of Pennsylvania.
What are the public holidays in Johnstown in 2026?
View the 2026 public holidays for Johnstown on our Holidays page.
What are the GPS coordinates used for the weather forecast in Johnstown?
The weather forecast for Johnstown uses coordinates 40.3267, -78.922.