SWISSVALE, PA 15218 Weather Forecast & Current Conditions

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15218 WEATHER WARNINGS (SEVERE T-STORM & TORNADO)

CURRENT WEATHER
ALLEGHENY CO. ARPT, PA Current Weather
11:53 AM EDT MAY 21, 2026
Broken Clouds 55°F
Feels Like:	54°F
Dewpoint:	50°F
Rel. Hum.:	83%
Visibility:	10 miles
Wind:	N at 6 mph
Pressure:	30.23 inches
Last 72 hours
Local Area Snow Depth
Pennsylvania Current Weather
Pennsylvania MOS Forecast Weather

Regional Weather Maps

(Automated weather data from NWS/FAA)

15218 WEATHER FORECAST
10-Day model forecast maps 2025 Hurricanes	SWISSVALE, PA 15218 Weather Forecast	Snowfall Forecast pages Snow Depth pages

THIS AFTERNOON
Considerable cloudiness. A slight chance of rain early. Highs in the mid 60s. Northeast winds 5 to 10 mph. Chance of rain 20 percent.

TONIGHT
Mostly cloudy. Lows in the lower 50s. East winds 5 to 10 mph.

FRIDAY
Mostly cloudy. A chance of showers in the afternoon. Highs in the mid 60s. East winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 50 percent.

FRIDAY NIGHT
Showers. A slight chance of thunderstorms after midnight. Lows around 50. East winds 10 to 15 mph with gusts up to 25 mph. Chance of rain near 100 percent.

SATURDAY
Showers. Highs in the lower 60s. East winds around 15 mph with gusts up to 30 mph. Chance of rain near 100 percent.

SATURDAY NIGHT
Showers. Lows in the mid 50s. Chance of rain 90 percent.

SUNDAY
Mostly cloudy with showers in the morning, then partly sunny with a chance of showers and thunderstorms in the afternoon. Much warmer with highs in the upper 70s. Chance of rain 90 percent.

SUNDAY NIGHT
A chance of thunderstorms in the evening. Showers likely. Warm with lows around 60. Chance of rain 70 percent.

MEMORIAL DAY
Considerable cloudiness with a chance of showers. A chance of thunderstorms in the afternoon. Highs around 80. Chance of rain 50 percent.

MONDAY NIGHT
Considerable cloudiness. A chance of showers and thunderstorms in the evening. Warm with lows around 60. Chance of rain 50 percent.

TUESDAY
Mostly cloudy with a chance of showers. Warm with highs in the lower 80s. Chance of rain 40 percent.

TUESDAY NIGHT
Mostly cloudy. A chance of showers in the evening. Warm with lows in the lower 60s. Chance of rain 40 percent.

WEDNESDAY
Partly sunny. A chance of showers in the afternoon. Warm with highs in the lower 80s. Chance of rain 30 percent.

15218 WEATHER SATELLITE LOOPS

Visible Weather Satellite
SWISSVALE, PA 15218

Infrared Weather Satellite
SWISSVALE, PA 15218

15218 WEATHER RADAR LOOP

NEXRAD Weather Radar
SWISSVALE, PA 15218

MOS COMPUTER WEATHER FORECAST

ALLEGHENY CO. ARPT, PA 3 hourly weather forecast

weather forecast created 7:00 AM CDT 5/21/2026

DAY/DATE &
WEATHER FORECAST SUMMARY

Thursday
21 MAY 2026

2 PM

61°

60°

Mostly Cloudy

6%

0% Thunder
( 5% severe)

ENE 10

62%

48°

High 64°

5 PM

63°

62°

Mostly Cloudy

E 10

58%

48°

Mostly Cloudy

8 PM

62°

61°

Mostly Cloudy

2%

0% Thunder
( 2% severe)

E 9

58%

47°

11 PM

58°

56°

Mostly Cloudy

E 9

64%

46°

Friday
22 MAY 2026

2 AM

56°

53°

Mostly Cloudy

4%

0% Thunder
( 1% severe)

E 10

72%

47°

Low 54°

5 AM

56°

53°

Mostly Cloudy

E 10

74%

48°

High 65°

8 AM

58°

56°

Mostly Cloudy

16%
RAIN
<.01 in

0% Thunder
( 2% severe)

E 12

72%

49°

Mostly Cloudy

Rain Likely

11 AM

62°

60°

Mostly Cloudy

ESE 13

65%

50°

2 PM

64°

63°

Mostly Cloudy

79%
RAIN
***

0% Thunder
( 8% severe)

ESE 13

65%

52°

5 PM

62°

60°

Mostly Cloudy

ESE 13

67%

51°

8 PM

60°

58°

Mostly Cloudy

87%
RAIN
***

0% Thunder
( 8% severe)

ESE 13

69%

50°

11 PM

57°

54°

Mostly Cloudy

ESE 13

75%

49°

Saturday
23 MAY 2026

2 AM

55°

52°

Overcast

91%
RAIN
***

0% Thunder
( 13% severe)

ESE 13

80%

49°

Low 51°

5 AM

54°

50°

Mostly Cloudy

E 13

83%

49°

High 62°

8 AM

54°

50°

Mostly Cloudy

89%
RAIN
***

0% Thunder
( 10% severe)

ESE 14

86%

50°

Mostly Cloudy

Rain Likely

11 AM

56°

53°

Mostly Cloudy

ESE 14

83%

51°

2 PM

59°

56°

Mostly Cloudy

64%
RAIN
1–2 in

0% Thunder
( 14% severe)

ESE 15

83%

54°

5 PM

62°

60°

Mostly Cloudy

ESE 14

75%

54°

8 PM

62°

60°

Mostly Cloudy

ESE 13

72%

53°


ALLEGHENY CO. ARPT, PA extended weather forecast
Sunday 24 MAY 2026	Monday 25 MAY 2026	Tuesday 26 MAY 2026	Wednesday 27 MAY 2026	Thursday 28 MAY 2026
Low 54°	Low 59°	Low 61°	Low 62°	Low 62°
High 74°	High 77°	High 80°	High 82°	High 81°

Overcast 93% Rain	Overcast 44% Rain	Overcast 48% Rain	Partly Cloudy 34% Rain	Partly Cloudy 35% Rain

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