JOHNSTOWN, PA 15915 Weather Forecast & Current Conditions

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15915 WEATHER WARNINGS (SEVERE T-STORM & TORNADO)

CURRENT WEATHER
JOHNSTOWN, PA Current Weather
11:54 PM EDT MAY 17, 2026
Clear 70°F
Feels Like:	70°F
Dewpoint:	54°F
Rel. Hum.:	57%
Visibility:	10 miles
Wind:	SSW at 6 mph
Pressure:	30.18 inches
Last 72 hours
Local Area Snow Depth
Pennsylvania Current Weather
Pennsylvania MOS Forecast Weather

Regional Weather Maps

(Automated weather data from NWS/FAA)

15915 WEATHER FORECAST
10-Day model forecast maps 2025 Hurricanes	JOHNSTOWN, PA 15915 Weather Forecast	Snowfall Forecast pages Snow Depth pages

REST OF TONIGHT
Mostly clear. Lows in the lower 60s. South winds around 5 mph.

MONDAY
Sunny, hot with highs in the upper 80s. Southwest winds 5 to 10 mph.

MONDAY NIGHT
Partly cloudy. Lows in the upper 60s. Southwest winds 5 to 10 mph.

TUESDAY
Mostly sunny. Hot with highs in the mid 80s. Southwest winds 10 to 15 mph with gusts up to 30 mph.

TUESDAY NIGHT
Partly cloudy in the evening, then becoming mostly cloudy. A chance of showers after midnight. Lows in the mid 60s. Southwest winds 10 to 15 mph with gusts up to 30 mph. Chance of rain 50 percent.

WEDNESDAY
Showers likely. A chance of thunderstorms in the afternoon. Not as warm with highs in the mid 70s. Chance of rain 70 percent.

WEDNESDAY NIGHT
Mostly cloudy. A chance of showers and thunderstorms in the evening. Less humid. Much cooler with lows in the mid 40s. Chance of rain 50 percent.

THURSDAY
Partly sunny. Highs in the mid 60s.

THURSDAY NIGHT
Partly cloudy. A chance of showers after midnight. Lows in the upper 40s. Chance of rain 30 percent.

FRIDAY
Partly sunny in the morning, then becoming mostly cloudy. A chance of showers. Highs in the mid 60s. Chance of rain 50 percent.

FRIDAY NIGHT
Mostly cloudy. A chance of showers in the evening, then showers likely after midnight. Lows in the lower 50s. Chance of rain 60 percent.

SATURDAY
Showers likely. Highs in the upper 60s. Chance of rain 70 percent.

SATURDAY NIGHT
Showers likely. Lows in the mid 50s. Chance of rain 70 percent.

15915 WEATHER SATELLITE LOOPS

Visible Weather Satellite
JOHNSTOWN, PA 15915

Infrared Weather Satellite
JOHNSTOWN, PA 15915

15915 WEATHER RADAR LOOP

NEXRAD Weather Radar
JOHNSTOWN, PA 15915

MOS COMPUTER WEATHER FORECAST

JOHNSTOWN, PA 3 hourly weather forecast

weather forecast created 7:00 AM CDT 5/17/2026

DAY/DATE &
WEATHER FORECAST SUMMARY

Sunday
17 MAY 2026

2 PM

76°

78°

Partly Cloudy

15%
RAIN
<.01 in

0% Thunder
( 34% severe)

W 9

56%

59°

High 79°

5 PM

78°

79°

Partly Cloudy

W 8

50%

58°

Partly Cloudy

8 PM

73°

73°

Partly Cloudy

4%

0% Thunder
( 10% severe)

SW 3

62%

59°

11 PM

66°

66°

Partly Cloudy

S 5

73%

57°

Monday
18 MAY 2026

2 AM

62°

62°

Partly Cloudy

2%

0% Thunder
( 5% severe)

S 6

78%

55°

Low 62°

5 AM

62°

62°

Partly Cloudy

S 6

75%

54°

High 87°

8 AM

69°

69°

Clear

2%

0% Thunder
( 8% severe)

SSW 7

66%

57°

Clear

11 AM

81°

81°

Clear

WSW 8

47%

59°

2 PM

85°

85°

Clear

10%
RAIN
<.01 in

0% Thunder
( 33% severe)

SW 9

41%

59°

5 PM

87°

86°

Partly Cloudy

SW 10

38%

58°

8 PM

79°

80°

Partly Cloudy

10%
RAIN
<.01 in

0% Thunder
( 15% severe)

S 7

52%

60°

11 PM

71°

71°

Partly Cloudy

SSW 7

68%

60°

Tuesday
19 MAY 2026

2 AM

68°

68°

Partly Cloudy

0%

0% Thunder
( 8% severe)

SSW 8

70%

58°

Low 67°

5 AM

67°

67°

Partly Cloudy

SW 8

68%

56°

High 86°

8 AM

72°

72°

Partly Cloudy

2%

0% Thunder
( 6% severe)

WSW 9

61%

58°

Partly Cloudy

11 AM

80°

81°

Partly Cloudy

WSW 13

49%

59°

2 PM

84°

83°

Partly Cloudy

7%

0% Thunder
( 27% severe)

WSW 14

41%

58°

5 PM

86°

85°

Partly Cloudy

WSW 13

37%

57°

8 PM

79°

80°

Partly Cloudy

SW 12

49%

58°


JOHNSTOWN, PA extended weather forecast
Wednesday 20 MAY 2026	Thursday 21 MAY 2026	Friday 22 MAY 2026	Saturday 23 MAY 2026	Sunday 24 MAY 2026
Low 63°	Low 46°	Low 49°	Low 55°	Low 55°
High 69°	High 65°	High 63°	High 70°	High 73°

Overcast 59% Rain	Partly Cloudy 23% Rain	Overcast 71% Rain	Overcast 64% Rain	Overcast 53% Rain

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