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Current weather in Johnstown is overcast clouds.

Where can I find the hourly weather forecast for Johnstown?

This page shows hourly weather forecast for Johnstown, including temperature, wind, precipitation, humidity and cloud cover.

Is the weather forecast for Johnstown updated regularly?

Weather data for Johnstown is updated regularly with the latest available observations and forecasts.

Now · 7:35 PM

Johnstown Weather & Hourly Forecast

United States · Pennsylvania · 15906

52°F

Overcast night

Feels like: 45°F

💧 Humidity 90% 🌡 Pressure 30.27 inHg 💨 Wind 12 mph 👁 Visibility 11.8 mi ☁ Clouds 100% ☀️ UV index 0.0 · Low 🌅 Sunrise 7:02 AM 🌇 Sunset 7:14 PM

Hourly Forecast for Johnstown

Today

8:00 PM

Overcast night

52° 💧 0.004 in 💨 12 mph H 90%30.27 inHg

11:00 PM

Overcast night

53° 💧 0.001 in 💨 12 mph H 87%30.30 inHg

Tomorrow

2:00 AM

Overcast night

54° 💧 0.002 in 💨 11 mph H 86%30.30 inHg

5:00 AM

Overcast night

53° 💧 0.004 in 💨 10 mph H 82%30.33 inHg

8:00 AM

Mostly cloudy

51° 💧 None 💨 11 mph H 79%30.39 inHg

11:00 AM

Mostly cloudy

54° 💧 None 💨 13 mph H 56%30.39 inHg

2:00 PM

Mostly sunny

59° 💧 None 💨 12 mph H 51%30.36 inHg

5:00 PM

Sunny

59° 💧 None 💨 11 mph H 58%30.33 inHg

8:00 PM

Partly cloudy night

54° 💧 None 💨 8 mph H 73%30.39 inHg

11:00 PM

Overcast night

52° 💧 None 💨 10 mph H 76%30.39 inHg

Thursday

2:00 AM

Overcast night

51° 💧 None 💨 9 mph H 77%30.36 inHg

5:00 AM

Overcast night

47° 💧 None 💨 8 mph H 84%30.39 inHg

8:00 AM

Mostly cloudy

46° 💧 None 💨 9 mph H 79%30.42 inHg

11:00 AM

Mostly cloudy

53° 💧 None 💨 9 mph H 64%30.39 inHg

2:00 PM

Partly cloudy

59° 💧 None 💨 7 mph H 57%30.33 inHg

5:00 PM

Partly cloudy

59° 💧 None 💨 7 mph H 55%30.30 inHg

Today

8:00 PM

Overcast night

52° 💧 0.002 in 💨 12 mph H 90%30.27 inHg

9:00 PM

Overcast night

52° 💧 0.001 in 💨 12 mph H 88%30.30 inHg

10:00 PM

Overcast night

53° 💧 0.000 in 💨 12 mph H 89%30.30 inHg

11:00 PM

Overcast night

53° 💧 0.001 in 💨 12 mph H 87%30.30 inHg

Tomorrow

12:00 AM

Overcast night

54° 💧 0.001 in 💨 11 mph H 86%30.30 inHg

1:00 AM

Overcast night

54° 💧 None 💨 11 mph H 86%30.33 inHg

2:00 AM

Overcast night

54° 💧 0.000 in 💨 11 mph H 86%30.30 inHg

3:00 AM

Overcast night

54° 💧 0.001 in 💨 11 mph H 85%30.33 inHg

4:00 AM

Overcast night

53° 💧 0.001 in 💨 10 mph H 83%30.33 inHg

5:00 AM

Overcast night

53° 💧 0.002 in 💨 10 mph H 82%30.33 inHg

6:00 AM

Overcast night

52° 💧 0.001 in 💨 10 mph H 82%30.36 inHg

7:00 AM

Mostly cloudy night

52° 💧 0.001 in 💨 10 mph H 81%30.36 inHg

8:00 AM

Mostly cloudy

51° 💧 None 💨 11 mph H 79%30.39 inHg

9:00 AM

Mostly cloudy

51° 💧 None 💨 11 mph H 70%30.39 inHg

10:00 AM

Overcast

52° 💧 None 💨 12 mph H 61%30.39 inHg

11:00 AM

Mostly cloudy

54° 💧 None 💨 13 mph H 56%30.39 inHg

12:00 PM

Mostly cloudy

56° 💧 None 💨 12 mph H 52%30.39 inHg

1:00 PM

Partly cloudy

58° 💧 None 💨 12 mph H 51%30.39 inHg

2:00 PM

Mostly sunny

59° 💧 None 💨 12 mph H 51%30.36 inHg

3:00 PM

Mostly sunny

60° 💧 None 💨 11 mph H 51%30.33 inHg

4:00 PM

Mostly sunny

60° 💧 None 💨 11 mph H 53%30.33 inHg

5:00 PM

Sunny

59° 💧 None 💨 11 mph H 58%30.33 inHg

6:00 PM

Partly cloudy

58° 💧 None 💨 10 mph H 64%30.36 inHg

7:00 PM

Partly cloudy

55° 💧 None 💨 9 mph H 69%30.36 inHg

8:00 PM

Partly cloudy night

54° 💧 None 💨 8 mph H 73%30.39 inHg

9:00 PM

Mostly cloudy night

53° 💧 None 💨 9 mph H 72%30.39 inHg

10:00 PM

Overcast night

53° 💧 None 💨 10 mph H 72%30.39 inHg

11:00 PM

Overcast night

52° 💧 None 💨 10 mph H 76%30.39 inHg

Thursday

12:00 AM

Overcast night

52° 💧 None 💨 11 mph H 74%30.39 inHg

1:00 AM

Overcast night

52° 💧 None 💨 10 mph H 74%30.39 inHg

2:00 AM

Overcast night

51° 💧 None 💨 9 mph H 77%30.36 inHg

3:00 AM

Mostly cloudy night

50° 💧 None 💨 9 mph H 82%30.36 inHg

4:00 AM

Mostly cloudy night

49° 💧 None 💨 9 mph H 82%30.39 inHg

5:00 AM

Overcast night

47° 💧 None 💨 8 mph H 84%30.39 inHg

6:00 AM

Overcast night

46° 💧 None 💨 8 mph H 88%30.39 inHg

7:00 AM

Overcast night

45° 💧 None 💨 8 mph H 87%30.42 inHg

8:00 AM

Mostly cloudy

46° 💧 None 💨 9 mph H 79%30.42 inHg

9:00 AM

Mostly cloudy

48° 💧 None 💨 10 mph H 68%30.42 inHg

10:00 AM

Mostly cloudy

50° 💧 None 💨 10 mph H 66%30.42 inHg

11:00 AM

Mostly cloudy

53° 💧 None 💨 9 mph H 64%30.39 inHg

12:00 PM

Partly cloudy

55° 💧 None 💨 9 mph H 62%30.39 inHg

1:00 PM

Mostly cloudy

57° 💧 None 💨 7 mph H 59%30.36 inHg

2:00 PM

Partly cloudy

59° 💧 None 💨 7 mph H 57%30.33 inHg

3:00 PM

Mostly sunny

60° 💧 None 💨 7 mph H 55%30.33 inHg

4:00 PM

Mostly sunny

60° 💧 None 💨 7 mph H 54%30.30 inHg

5:00 PM

Partly cloudy

59° 💧 None 💨 7 mph H 55%30.30 inHg

6:00 PM

Mostly sunny

57° 💧 None 💨 6 mph H 62%30.30 inHg

7:00 PM

Sunny

53° 💧 None 💨 4 mph H 75%30.30 inHg

8:00 PM

Clear night

50° 💧 None 💨 3 mph H 82%30.30 inHg

9:00 PM

Clear night

48° 💧 None 💨 3 mph H 85%30.30 inHg

10:00 PM

Clear night

47° 💧 None 💨 2 mph H 86%30.30 inHg

11:00 PM

Clear night

47° 💧 None 💨 3 mph H 86%30.30 inHg

Friday

12:00 AM

Clear night

47° 💧 None 💨 3 mph H 83%30.30 inHg

1:00 AM

Clear night

46° 💧 None 💨 4 mph H 80%30.27 inHg

2:00 AM

Clear night

46° 💧 None 💨 4 mph H 81%30.27 inHg

3:00 AM

Clear night

44° 💧 None 💨 3 mph H 85%30.27 inHg

4:00 AM

Clear night

43° 💧 None 💨 3 mph H 87%30.27 inHg

5:00 AM

Clear night

42° 💧 None 💨 3 mph H 89%30.27 inHg

6:00 AM

Clear night

41° 💧 None 💨 3 mph H 90%30.27 inHg

7:00 AM

Clear night

40° 💧 None 💨 3 mph H 90%30.27 inHg

8:00 AM

Sunny

43° 💧 None 💨 4 mph H 89%30.27 inHg

11:00 AM

Sunny

57° 💧 None 💨 5 mph H 62%30.27 inHg

2:00 PM

Sunny

65° 💧 None 💨 7 mph H 46%30.21 inHg

5:00 PM

Sunny

65° 💧 None 💨 8 mph H 52%30.15 inHg

8:00 PM

Clear night

55° 💧 None 💨 5 mph H 78%30.12 inHg

11:00 PM

Clear night

50° 💧 None 💨 4 mph H 86%30.15 inHg

Saturday

2:00 AM

Clear night

46° 💧 None 💨 3 mph H 92%30.15 inHg

5:00 AM

Clear night

45° 💧 None 💨 3 mph H 93%30.12 inHg

8:00 AM

Sunny

46° 💧 None 💨 3 mph H 96%30.15 inHg

11:00 AM

Sunny

59° 💧 None 💨 5 mph H 72%30.12 inHg

2:00 PM

Sunny

66° 💧 None 💨 9 mph H 58%30.06 inHg

5:00 PM

Mostly cloudy

66° 💧 None 💨 11 mph H 55%30.00 inHg

8:00 PM

Clear night

58° 💧 None 💨 7 mph H 67%30.00 inHg

11:00 PM

Clear night

52° 💧 None 💨 6 mph H 75%30.00 inHg

Sunday

2:00 AM

Partly cloudy night

48° 💧 None 💨 4 mph H 84%29.97 inHg

5:00 AM

Overcast night

47° 💧 None 💨 5 mph H 90%29.94 inHg

8:00 AM

Mostly sunny

49° 💧 None 💨 7 mph H 91%29.91 inHg

11:00 AM

Mostly cloudy

59° 💧 None 💨 12 mph H 70%29.88 inHg

2:00 PM

Overcast

66° 💧 None 💨 14 mph H 56%29.80 inHg

5:00 PM

Overcast

64° 💧 None 💨 11 mph H 60%29.80 inHg

8:00 PM

Overcast night

60° 💧 None 💨 9 mph H 68%29.83 inHg

11:00 PM

Light rain

57° 💧 None 💨 7 mph H 83%29.83 inHg

Monday

2:00 AM

Overcast night

55° 💧 None 💨 5 mph H 92%29.83 inHg

5:00 AM

Overcast night

54° 💧 None 💨 5 mph H 93%29.85 inHg

8:00 AM

Overcast

54° 💧 None 💨 5 mph H 92%29.88 inHg

2:00 PM

Light rain

63° 💧 None 💨 9 mph H 75%29.85 inHg

8:00 PM

Overcast night

60° 💧 None 💨 4 mph H 87%29.88 inHg

Tuesday

2:00 AM

Mostly clear night

54° 💧 None 💨 2 mph H 97%29.94 inHg

8:00 AM

Overcast

52° 💧 None 💨 1 mph H 99%30.00 inHg

2:00 PM

Overcast

67° 💧 None 💨 5 mph H 63%29.97 inHg

8:00 PM

Clear night

59° 💧 None 💨 1 mph H 83%29.97 inHg

Wednesday

2:00 AM

Clear night

50° 💧 None 💨 3 mph H 94%30.00 inHg

8:00 AM

Sunny

53° 💧 None 💨 4 mph H 96%30.03 inHg

2:00 PM

Sunny

73° 💧 None 💨 9 mph H 57%29.97 inHg

8:00 PM

Clear night

63° 💧 None 💨 8 mph H 78%29.97 inHg

Thursday

2:00 AM

Mostly clear night

58° 💧 None 💨 6 mph H 95%30.03 inHg

8:00 AM

Overcast

57° 💧 None 💨 5 mph H 98%30.06 inHg

2:00 PM

Sunny

73° 💧 None 💨 10 mph H 63%30.03 inHg

8:00 PM

Partly cloudy night

66° 💧 None 💨 9 mph H 76%30.06 inHg

Friday

2:00 AM

Mostly clear night

60° 💧 None 💨 7 mph H 96%30.06 inHg

8:00 AM

Overcast

62° 💧 None 💨 6 mph H 94%30.06 inHg

2:00 PM

Mostly cloudy

72° 💧 None 💨 10 mph H 71%30.00 inHg

8:00 PM

Mostly clear night

65° 💧 None 💨 7 mph H 97%29.97 inHg

Saturday

2:00 AM

Partly cloudy night

64° 💧 None 💨 6 mph H 98%29.94 inHg

8:00 AM

Overcast

63° 💧 None 💨 4 mph H 99%29.94 inHg

2:00 PM

Light rain

71° 💧 None 💨 9 mph H 81%29.85 inHg

8:00 PM

Light rain

64° 💧 None 💨 5 mph H 98%29.80 inHg

Sunday

2:00 AM

Light rain

62° 💧 None 💨 10 mph H 97%29.77 inHg

8:00 AM

Mostly sunny

59° 💧 None 💨 7 mph H 97%29.80 inHg

2:00 PM

Partly cloudy

69° 💧 None 💨 11 mph H 54%29.74 inHg

8:00 PM

Mostly clear night

58° 💧 None 💨 7 mph H 78%29.80 inHg

Monday

2:00 AM

Partly cloudy night

52° 💧 None 💨 6 mph H 92%29.83 inHg

8:00 AM

Overcast

51° 💧 None 💨 8 mph H 91%29.88 inHg

2:00 PM

Partly cloudy

59° 💧 None 💨 12 mph H 62%29.83 inHg

8:00 PM

Mostly clear night

51° 💧 None 💨 10 mph H 81%29.88 inHg

Tuesday

2:00 AM

Light rain

49° 💧 None 💨 9 mph H 92%29.88 inHg

8:00 AM

Overcast

46° 💧 None 💨 10 mph H 91%29.94 inHg

2:00 PM

Overcast

54° 💧 None 💨 13 mph H 73%29.91 inHg

8:00 PM

Light rain

51° 💧 None 💨 9 mph H 87%29.94 inHg

Wednesday

2:00 AM

Overcast night

50° 💧 None 💨 8 mph H 89%29.97 inHg

8:00 AM

Light rain

50° 💧 None 💨 6 mph H 95%30.00 inHg

In Johnstown and, more broadly, across the state of Pennsylvania: This morning will start with mostly cloudy skies and mild temperatures ranging from 55 to 64 degrees Fahrenheit. Light northeast winds will blow at around 8 mph, with gusts reaching up to 19 mph. As the day progresses, the sky will remain mostly cloudy, and there is a high likelihood of rain, with total accumulation around 0.24 inches. Winds will continue to be light, but gusts may be slightly stronger during the storm. Temperatures are expected to stay within the mild range through the afternoon, making for a relatively comfortable day despite the unsettled weather. Be prepared for the possibility of rain, especially later in the day.

15-Day Weather Outlook for Johnstown

TomorrowTomorrow

Overcast 60°/51° 💧 None 💨 13 mph

Thursday, Sep 24Thu Sep 24

Overcast 60°/45° 💧 None 💨 11 mph

Friday, Sep 25Fri Sep 25

Sunny 65°/40° 💧 0.169 in 💨 8 mph

Saturday, Sep 26Sat Sep 26

Mostly cloudy 66°/45° 💧 None 💨 11 mph

Sunday, Sep 27Sun Sep 27

Light rain 66°/47° 💧 0.008 in 💨 14 mph

Monday, Sep 28Mon Sep 28

Light rain 63°/54° 💧 0.025 in 💨 9 mph

Tuesday, Sep 29Tue Sep 29

Mostly sunny 67°/52° 💧 0.005 in 💨 5 mph

Wednesday, Sep 30Wed Sep 30

Sunny 73°/50° 💧 None 💨 9 mph

Thursday, Oct 1Thu Oct 1

Overcast 73°/57° 💧 0.001 in 💨 10 mph

Friday, Oct 2Fri Oct 2

Mostly cloudy 72°/60° 💧 0.225 in 💨 10 mph

Saturday, Oct 3Sat Oct 3

Light rain 71°/63° 💧 0.264 in 💨 9 mph

Sunday, Oct 4Sun Oct 4

Light rain 69°/58° 💧 0.521 in 💨 11 mph

Monday, Oct 5Mon Oct 5

Partly cloudy 59°/51° 💧 0.030 in 💨 12 mph

Tuesday, Oct 6Tue Oct 6

Light rain 54°/46° 💧 0.058 in 💨 13 mph

Wednesday, Oct 7Wed Oct 7

Light rain 50°/50° 💧 0.011 in 💨 8 mph

TEMPERATURE OUTLOOK

Temperature & Weather Trends in Johnstown

Vertical axis: °F · Color based on temperature

AIR QUALITY FORECAST

Air Quality Forecast for Johnstown

Hourly forecast · Updated every 2 hours

Good

Nearest forecast value 8:00 PM

PM2.5 Fine particles Good 1,6µg/m³

Microscopic particles that can penetrate deep into the lungs. Elevated concentrations can especially affect children, older adults and people with respiratory conditions.

PM10 Particulate matter Good 1,7µg/m³

Includes dust, pollen and other airborne particles. High concentrations may irritate the respiratory system.

O₃ Ozone Good 43,4µg/m³

Ground-level ozone can irritate the eyes and respiratory system when concentrations are elevated.

NO₂ Nitrogen dioxide Good 6,6µg/m³

A gas emitted mainly by traffic and some industrial activity. High exposure can affect respiratory health.

Air quality is favorable for outdoor activities.

UV & HEALTH

UV, Sun & Health Outlook in Johnstown

Maximum daily UV Today, tomorrow and the following day show the maximum UV index forecast for each day.

0–2 Low 3–5 Moderate 6–7 High 8–10 Very high 11+ Extreme

Today UV 0,4Low 😊Good

Tomorrow UV 5,1Moderate 🙂Fair

Thursday UV 5,3Moderate 🙂Fair

Friday UV 5,7Moderate 🙂Fair

Saturday UV 5,4Moderate 🙂Fair

Sunday UV 5,0Moderate —Unavailable

Monday UV 5,0Moderate —Unavailable

Today's weather health advice Open today's recommendations.

Low UV risk

UV radiation will be low, although basic protection is still advisable during prolonged exposure.

Good air quality

Air quality is good and outdoor activities can be enjoyed normally.

Comfortable temperature conditions

Temperatures should feel comfortable for most people, with no particular heat or cold precautions needed.

Good conditions for outdoor activities

Outdoor activities can generally be enjoyed normally, with sun protection adjusted to the UV level.

WIND OUTLOOK

Hourly Wind Forecast for Johnstown

Vertical axis: mph · Horizontal axis: hours

Sustained wind Max gusts

NIGHT SKY · JOHNSTOWN, PENNSYLVANIA

Tonight's Stargazing & Shooting Stars

Local night-sky conditions and meteor activity for Jasper.

30/100Best-hour score

No good viewing window tonight Astronomical darkness exists, but current sky conditions are unfavorable.

☁ Cloud cover 97% Real hourly forecast for the best viewing hour.

☾ Moonlight 89% Waxing Gibbous · Moon below the horizon at the best viewing hour.

☄ Meteor activity Southern Taurids Reference ZHR 7 · Radiant 59° high at the best hour.

✦ Estimated visible meteors Poor visibility Meteor activity may occur above the clouds, but local viewing conditions are not suitable.

Chance ≥1 meteor in 30 minNot meaningful

UPCOMING METEOR PERIODSStart, peak and end dates · weather should be checked closer to the peak.

SEP 20–NOV 20

Southern TauridsStart SEP 20 · Peak NOV 5 · End NOV 20 · ZHR 7 · 20% Moon at peak

ACTIVE NOW

OCT 2–NOV 7

OrionidsStart OCT 2 · Peak OCT 21 · End NOV 7 · ZHR 20 · 77% Moon at peak

UPCOMING

OCT 20–DEC 10

Northern TauridsStart OCT 20 · Peak NOV 12 · End DEC 10 · ZHR 5 · 7% Moon at peak

UPCOMING

NOV 6–NOV 30

LeonidsStart NOV 6 · Peak NOV 17 · End NOV 30 · ZHR 15 · 52% Moon at peak

UPCOMING

Experimental local observing estimate. Weather values come from the hourly forecast already used on this page. Moon position and astronomical darkness are calculated locally from time and coordinates. Meteor-shower ZHR describes ideal conditions and is not the number of meteors a person should expect to see locally.

DISCOVER WEATHER NEARBY Weather in other cities

Explore current conditions and forecasts for other locations.

Forecast data for Johnstown were last refreshed today at 7:35 PM. The current forecast period extends through 24/09/2026 at 5:00 PM. Weather, air-quality and UV-index data are provided through WEATHER-INFO.COM. Forecasts are produced automatically from the latest available data and are subject to periodic technical checks. This service is intended for general weather information.