Observed 9:53 AM EDT at KAGC

Laboratory, PA weather

Sunny and 50°10°.

Forecasts agree

Now 50°10°

Sunny

Wind: Calm; Up to 6 mph10 km/h through 10 PM
Dew point: 44°7°; Comfortable
UV index: 3Moderate; Moderate 11 AM–5 PM · peak 4
Air quality (notable): 132Unhealthy for sensitive groups; PM2.5 (fine particles) · tomorrow moderate
Pressure: 30.36 inHg1028 hPa; Steady over the last 3 h

No precipitation expected in the next 2 hours.

From forecast models

Next 48 hours

Good hours for

High 62°17° today at 4 PM
Below 50°10° tonight after 8 PM
Low 36°2° tomorrow at 7 AM
Above 50°10° tomorrow by 11 AM

This morningUp to 53°12° by 11 AM · Clear
This afternoonUp to 62°17° by 4 PM · Clear
TonightDown to 37°3° by 5 AM · Clear
Tomorrow morningUp to 54°12° by 11 AM · Clear
Tomorrow afternoonUp to 64°18° by 4 PM · Clear
Tomorrow nightDown to 37°3° by 5 AM · Clear
Sunday morningUp to 41°5° by 9 AM · Clear

Hourly forecast, next 48 hours, in the place's local time
Hour	Conditions	Temperature	Feels like	Precipitation	Wind	Humidity	Cloud cover	UV index
Fri 10a	Sunny	48°9° (likely 48°9° to 51°11°)	47°8°	0%	3 mph5 km/h from NE, gusts 9 mph15 km/h	93%	23%	1
Fri 11a	Sunny	53°12° (likely 53°12° to 56°13°)	53°12°	0%	5 mph8 km/h from NE, gusts 10 mph15 km/h	77%	3%	3
Fri 12p	Sunny	57°14° (likely 57°14° to 59°15°)	57°14°	0%	5 mph8 km/h from NE, gusts 10 mph17 km/h	66%	7%	4
Fri 1p	Sunny	59°15° (likely 59°15° to 61°16°)	59°15°	0%	6 mph10 km/h from NE, gusts 10 mph17 km/h	58%	11%	4
Fri 2p	Sunny	60°16° (likely 60°16° to 62°17°)	60°16°	0%	6 mph10 km/h from NE, gusts 10 mph16 km/h	54%	11%	4
Fri 3p	Sunny	61°16° (likely 60°16° to 62°17°)	61°16°	0%	6 mph10 km/h from NE, gusts 10 mph17 km/h	52%	13%	4
Fri 4p	Sunny	62°17° (likely 60°16° to 62°17°)	62°17°	0%	6 mph10 km/h from NE, gusts 10 mph16 km/h	50%	11%	3
Fri 5p	Sunny	61°16° (likely 59°15° to 61°16°)	61°16°	0%	6 mph10 km/h from NE, gusts 10 mph16 km/h	49%	10%	2
Fri 6p	Sunny	59°15° (likely 56°13° to 59°15°)	59°15°	0%	5 mph8 km/h from NE, gusts 9 mph15 km/h	51%	6%	1
Fri 7p	Clear	55°13° (likely 51°11° to 55°13°)	55°13°	0%	5 mph8 km/h from NE, gusts 7 mph11 km/h	58%	0%	0
Fri 8p	Clear	49°9° (likely 49°9° to 51°11°)	48°9°	0%	3 mph5 km/h from NE, gusts 7 mph12 km/h	76%	0%	0
Fri 9p	Clear	46°8° (likely 46°8° to 49°9°)	45°7°	0%	3 mph5 km/h from NE, gusts 8 mph12 km/h	77%	2%	0
Fri 10p	Clear	44°7° (likely 44°7° to 48°9°)	42°6°	0%	5 mph8 km/h from E, gusts 9 mph14 km/h	82%	1%	0
Fri 11p	Clear	43°6° (likely 43°6° to 47°8°)	40°4°	0%	5 mph8 km/h from E, gusts 9 mph15 km/h	88%	0%	0
Sat 12a	Clear	42°6° (likely 42°6° to 47°8°)	39°4°	0%	5 mph8 km/h from E, gusts 9 mph15 km/h	90%	0%	0
Sat 1a	Clear	40°4° (likely 40°4° to 46°8°)	38°3°	0%	3 mph5 km/h from E, gusts 9 mph14 km/h	93%	0%	0
Sat 2a	Clear	40°4° (likely 40°4° to 45°7°)	38°3°	0%	3 mph5 km/h from E, gusts 8 mph12 km/h	93%	0%	0
Sat 3a	Clear	39°4° (likely 39°4° to 44°7°)	37°3°	0%	3 mph5 km/h from E, gusts 6 mph10 km/h	95%	0%	0
Sat 4a	Clear	38°3° (likely 38°3° to 44°7°)	38°3°	0%	2 mph3 km/h from E, gusts 7 mph11 km/h	99%	0%	0
Sat 5a	Clear	37°3° (likely 37°3° to 43°6°)	37°3°	0%	2 mph3 km/h from E, gusts 6 mph9 km/h	98%	0%	0
Sat 6a	Clear	37°3° (likely 37°3° to 42°6°)	37°3°	0%	2 mph3 km/h from E, gusts 7 mph11 km/h	98%	0%	0
Sat 7a	Clear	36°2° (likely 36°2° to 42°6°)	36°2°	0%	2 mph3 km/h from E, gusts 7 mph11 km/h	96%	1%	0
Sat 8a	Sunny	36°2° (likely 36°2° to 42°6°)	36°2°	0%	2 mph3 km/h from E, gusts 7 mph11 km/h	98%	1%	0
Sat 9a	Sunny	40°4° (likely 40°4° to 46°8°)	40°4°	0%	2 mph3 km/h from E, gusts 6 mph10 km/h	98%	2%	0
Sat 10a	Sunny	47°8° (likely 47°8° to 52°11°)	47°8°	0%	2 mph3 km/h from SE, gusts 10 mph16 km/h	83%	3%	1
Sat 11a	Sunny	54°12° (likely 53°12° to 56°13°)	54°12°	0%	2 mph3 km/h from SE, gusts 8 mph14 km/h	69%	4%	3
Sat 12p	Sunny	58°14° (likely 57°14° to 59°15°)	58°14°	0%	2 mph3 km/h from SE, gusts 7 mph10 km/h	60%	6%	3
Sat 1p	Sunny	61°16° (likely 59°15° to 61°16°)	61°16°	0%	2 mph3 km/h from S, gusts 5 mph8 km/h	53%	5%	4
Sat 2p	Sunny	62°17° (likely 60°16° to 63°17°)	63°17°	0%	2 mph3 km/h from S, gusts 4 mph6 km/h	50%	6%	4
Sat 3p	Sunny	63°17° (likely 61°16° to 64°18°)	63°17°	0%	2 mph3 km/h from SE, gusts 4 mph7 km/h	48%	13%	4
Sat 4p	Sunny	64°18° (likely 61°16° to 64°18°)	64°18°	0%	2 mph3 km/h from E, gusts 5 mph9 km/h	46%	11%	3
Sat 5p	Mostly sunny	63°17° (likely 61°16° to 63°17°)	63°17°	0%	2 mph3 km/h from E, gusts 6 mph9 km/h	46%	10%	2
Sat 6p	Clear	60°16° (likely 58°14° to 60°16°)	60°16°	0%	2 mph3 km/h from E, gusts 7 mph12 km/h	51%	5%	1
Sat 7p	Clear	56°13° (likely 52°11° to 56°13°)	57°14°	0%	2 mph3 km/h from NE, gusts 7 mph12 km/h	57%	6%	0
Sat 8p	Clear	50°10° (likely 50°10° to 52°11°)	50°10°	0%	2 mph3 km/h from NE, gusts 9 mph14 km/h	71%	0%	0
Sat 9p	Clear	47°8° (likely 47°8° to 50°10°)	47°8°	0%	2 mph3 km/h from E, gusts 9 mph15 km/h	77%	0%	0
Sat 10p	Clear	45°7° (likely 44°7° to 48°9°)	44°7°	0%	3 mph5 km/h from E, gusts 9 mph15 km/h	82%	0%	0
Sat 11p	Clear	43°6° (likely 43°6° to 47°8°)	42°6°	0%	3 mph5 km/h from E, gusts 9 mph15 km/h	86%	1%	0
Sun 12a	Clear	42°6° (likely 42°6° to 47°8°)	40°4°	0%	3 mph5 km/h from E, gusts 9 mph14 km/h	88%	1%	0
Sun 1a	Clear	41°5° (likely 41°5° to 46°8°)	41°5°	0%	2 mph3 km/h from SE, gusts 9 mph14 km/h	88%	0%	0
Sun 2a	Clear	40°4° (likely 40°4° to 45°7°)	40°4°	0%	2 mph3 km/h from SE, gusts 8 mph14 km/h	89%	0%	0
Sun 3a	Clear	39°4° (likely 39°4° to 45°7°)	39°4°	0%	2 mph3 km/h from SE, gusts 8 mph13 km/h	91%	0%	0
Sun 4a	Clear	38°3° (likely 38°3° to 44°7°)	38°3°	0%	2 mph3 km/h from SE, gusts 7 mph11 km/h	93%	0%	0
Sun 5a	Clear	37°3° (likely 37°3° to 43°6°)	37°3°	0%	2 mph3 km/h from SE, gusts 7 mph11 km/h	94%	0%	0
Sun 6a	Clear	35°2° (likely 35°2° to 42°6°)	35°2°	0%	2 mph3 km/h from SE, gusts 7 mph11 km/h	98%	0%	0
Sun 7a	Clear	35°2° (likely 35°2° to 41°5°)	35°2°	0%	2 mph3 km/h from SE, gusts 6 mph9 km/h	99%	0%	0
Sun 8a	Sunny	36°2° (likely 34°1° to 41°5°)	36°2°	0%	2 mph3 km/h from SE, gusts 5 mph9 km/h	96%	0%	0
Sun 9a	Sunny	41°5° (likely 38°3° to 46°8°)	41°5°	0%	2 mph3 km/h from S, gusts 5 mph8 km/h	87%	7%	0

Days ahead

Shaded: typical range for these dates (2017–2026)

Today, Oct 23. Mostly sunny. High 62°17°, low 36°2°. Typical 61°16° / 39°4°. Dry. Forecasts agree.
1. Morning
  6 AM–noon
  Sunny, 53°12°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 62°17°
  Dry
3. Evening
  6 PM–midnight
  Clear, 49°9°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 37°3°
  Dry
Official NWS forecast
Today: Sunny, with a high near 62. Northeast wind around 6 mph.
Tonight: Mostly clear, with a low around 36. East wind around 5 mph.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
60°16°–62°17°
Low, likely
36°2°–41°5°
Typical high / low
61°16° / 39°4°
Wind
8 mph12 km/h, gusts 16 mph26 km/h
UV peak
4
Tomorrow, Oct 24. Mostly sunny. High 64°18°, low 35°2°. Typical 61°16° / 39°4°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 36°2°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 64°18°
  Dry
3. Evening
  6 PM–midnight
  Clear, 50°10°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 37°3°
  Dry
Official NWS forecast
Day: Sunny, with a high near 64. Southeast wind around 2 mph.
Night: Clear, with a low around 35. East wind around 3 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
62°17°–64°18°
Low, likely
35°2°–42°6°
Typical high / low
61°16° / 39°4°
Wind
8 mph12 km/h, gusts 15 mph24 km/h
UV peak
4
Sunday, Oct 25. Sunny. High 65°18°, low 36°2°. Typical 61°16° / 39°4°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 36°2°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 64°18°
  Dry
3. Evening
  6 PM–midnight
  Clear, 50°10°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 40°5°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Patchy frost before 9am. Sunny, with a high near 65. South wind around 2 mph.
Night: Mostly clear, with a low around 36.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
63°17°–65°18°
Low, likely
34°1°–41°5°
Typical high / low
61°16° / 39°4°
Wind
8 mph12 km/h, gusts 14 mph22 km/h
UV peak
4
Monday, Oct 26. Mostly sunny. High 67°19°, low 41°5°. Typical 60°16° / 38°4°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 39°4°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 65°19°
  Dry
3. Evening
  6 PM–midnight
  Partly cloudy, 52°11°
  Dry
4. Overnight
  midnight–6 AM
  Partly cloudy, 44°7°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Sunny, with a high near 67.
Night: Mostly clear, with a low around 41.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
65°18°–67°19°
Low, likely
35°2°–42°6°
Typical high / low
60°16° / 38°4°
Wind
6 mph10 km/h, gusts 15 mph24 km/h
UV peak
4
Tuesday, Oct 27. Partly sunny. High 64°18°, low 42°6°. Typical 60°15° / 38°3°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Mostly sunny, 43°6°
  Dry
2. Afternoon
  noon–6 PM
  Mostly sunny, 65°18°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 54°12°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 48°9°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly sunny, with a high near 64.
Night: Mostly cloudy, with a low around 42.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
63°17°–67°19°
Low, likely
40°4°–45°7°
Typical high / low
60°15° / 38°3°
Wind
5 mph8 km/h, gusts 12 mph20 km/h
UV peak
4
Wednesday, Oct 28. Cloudy. High 66°19°, low 43°6°. Typical 60°15° / 38°3°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Cloudy, 48°9°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 66°19°
  Dry
3. Evening
  6 PM–midnight
  Clear, 55°13°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 48°9°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Partly sunny, with a high near 66.
Night: Partly cloudy, with a low around 43.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
65°18°–69°21°
Low, likely
43°6°–50°10°
Typical high / low
60°15° / 38°3°
Wind
9 mph14 km/h
UV peak
3
Thursday, Oct 29. Partly sunny. High 68°20°, low 44°7°. Typical 60°16° / 38°3°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 47°8°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 68°20°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 56°13°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 49°10°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly sunny, with a high near 68.
Night: Partly cloudy, with a low around 44.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
67°19°–71°22°
Low, likely
44°7°–50°10°
Typical high / low
60°16° / 38°3°
Wind
12 mph19 km/h, gusts 26 mph41 km/h
UV peak
4
Friday, Oct 30. Cloudy. High 64°18°, low 47°8°. Typical 60°16° / 38°3°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Mostly sunny, 48°9°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 62°17°
  Dry
3. Evening
  6 PM–midnight
  Clear, 51°11°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 43°6°
  Dry
Hours this far out come from computer models only.
The National Weather Service writes about seven days ahead; this day is our model forecast only.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
57°14°–69°21°
Low, likely
45°7°–48°9°
Typical high / low
60°16° / 38°3°
Wind
9 mph15 km/h, gusts 20 mph33 km/h
UV peak
3
Saturday, Oct 31. Sunny. High 58°14°, low 43°6°. Typical 60°15° / 37°3°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Sunny, 42°5°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 54°12°
  Dry
3. Evening
  6 PM–midnight
  Clear, 46°8°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 40°5°
  20% chance · 0.05 in1.3 mm
Hours this far out come from computer models only.
The National Weather Service writes about seven days ahead; this day is our model forecast only.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
48°9°–69°21°
Low, likely
35°2°–51°11°
Typical high / low
60°15° / 37°3°
Wind
9 mph14 km/h, gusts 19 mph31 km/h
UV peak
1
Sunday, Nov 1. Drizzle. High 60°16°, low 47°8°. Typical 59°15° / 37°3°. Rain 0.15 in3.8 mm, 40% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Drizzle, 41°5°
  30% chance · 0.03 in0.8 mm
2. Afternoon
  noon–6 PM
  Cloudy, 56°13°
  40% chance
3. Evening
  6 PM–midnight
  Drizzle, 51°11°
  40% chance
Hours this far out come from computer models only.
The National Weather Service writes about seven days ahead; this day is our model forecast only.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
56°13°–67°19°
Low, likely
33°1°–54°12°
Typical high / low
59°15° / 37°3°
Wind
8 mph13 km/h, gusts 19 mph31 km/h

10 days15 days30 days

The outlook

Today
Dry, high 62°, low 36°.
Tomorrow
Dry, high 64°, low 35°.
Sunday
Dry, high 65°, low 36°.
Rest of week
Mostly dry, highs 58–68°.

Want the meteorologists’ reasoning? Read the NWS forecast discussion (PBZ) (opens in a new tab)

What changed since yesterday

No meaningful changes from yesterday’s forecast.

Radar

Radar data: NOAA MRMS, rendered by forecast.blue

Radar loads when scrolled into view

Full-screen radar

Rivers

NOAA river gauges within 25 mi

Monongahela River at Charleroi Lock and Dam

17 mi

Below flood stage

Level: 8.7 ft

Forecast peak 8.9 ft Fri 2 PM

Reading from Fri 9 AM · NWS gauge page

Monongahela River at Maxwell Lock and Dam (lower pool)

17 mi

Below flood stage

Level: 10.5 ft
Flow: 8,800 cfs

Forecast peak 10.6 ft Fri 2 PM

Reading from Fri 9:30 AM · NWS gauge page

Youghiogheny River at Sutersville

22 mi

Below flood stage

Level: 4.2 ft
Flow: 1,680 cfs

Forecast peak 4.3 ft Sat 2 PM

Reading from Fri 9:15 AM · NWS gauge page

Ohio River at Pittsburgh

23 mi

Below flood stage

Level: 16.3 ft
Flow: under 1 cfs

Forecast peak 16.6 ft Sat 8 AM

Reading from Fri 9:45 AM · NWS gauge page

For your home

What this week’s weather means for heating, cooling, pipes and fresh air.

Heating this week

About 70% less heating than a typical week.

This week 34Typical 110

Heating degree days, base 65°F

Heat-pump hours, next 7 days

h below 47°F: 27
h below 17°F: 0
h below 5°F: 0

47, 17 and 5°F are the test points heat pumps are rated at. About 20 hours are near freezing and damp, when outdoor units defrost more often.

Comfort

Dry air outside (dew point 44°F).

Open the windows?

Today, 2:00 PM–5:00 PM

Good stretch to open the windows.

Is this typical?

Washington County Airport · forecast.blue computed averages, 2017–2026 · records 2017–2026

Oct 23, today vs a typical year

Today’s expected high is about typical for the date.

Last 7 days vs normal

—SatOct 17
—SunOct 18
—MonOct 19
—TueOct 20
—WedOct 21
—ThuOct 22
—FriOct 23

Pittsburgh WSO City station, 1874–1979: records and averages

This station closed and is no longer reporting, but has a long history nearby. Its own average annual high was about 62°17°, over its full 1874–1979 record — not an NCEI normal, and not the same station as the computed averages above.

Laboratory weather by month: normals, records, snow and freeze dates

Sun & moon

Sun

Daylight: 10 h 49 min; Losing 2 min 25 s a day; shortest Dec 21, 1 h 31 min less
Golden hour: 5:52–6:46 PM; Morning 7:23–8:17 AM
Blue hour: 6:46–6:57 PM; Morning 7:12–7:23 AM; first light 7:12 AM

Stars tonight? Good

Clear 6:57 PM–7:13 AM; moon 95% lit, sets 5:53 AM.

Moon

Waxing gibbous

92% lit · growing

Today: sets 4:45 AM · rises 5:01 PM
Full moon: Oct 26
New moon: Nov 9

Looking west from Laboratory. A level horizon.Skyline from USGS elevation data, heights drawn up to 6× taller. Sky, sun and moon as they are now.

Laboratory, PA weather

Next 2 hours

Next 48 hours

Days ahead

The outlook

Today

Tomorrow

Sunday

Rest of week

What changed since yesterday

Radar

Rivers

Monongahela River at Charleroi Lock and Dam

Monongahela River at Maxwell Lock and Dam (lower pool)

Youghiogheny River at Sutersville

Ohio River at Pittsburgh

For your home

Heating this week

Heat-pump hours, next 7 days

Comfort

Open the windows?

Is this typical?

Oct 23, today vs a typical year

Last 7 days vs normal

Sun & moon

Sun

Stars tonight? Good

Moon