Observed 4:15 AM EDT at KPIT

McDonald, PA weather

Clear and 43°6°.

Forecasts agree

Now 43°6°

Clear

Wind: Calm; Light through 5 PM
Dew point: 39°4°; Comfortable
UV index: 0Low; Moderate 11 AM–5 PM · peak 4
Air quality: 53Moderate; Main pollutant: PM2.5 (fine particles)
Pressure: 30.41 inHg1030 hPa; Rising slowly · +0.02 inHg+0.7 hPa in 3 h

No precipitation expected in the next 2 hours.

From forecast models

Next 48 hours

Good hours for

Low 38°3° today at 7 AM
Above 50°10° today by 11 AM
High 64°18° today at 4 PM
Below 50°10° tonight after 9 PM
Fog tomorrow night from 3 AM

This morningUp to 53°12° by 11 AM · Clear
This afternoonUp to 64°18° by 4 PM · Clear
TonightDown to 38°3° by 5 AM · Clear
Tomorrow morningUp to 54°12° by 11 AM · Clear
Tomorrow afternoonUp to 65°18° by 4 PM · Clear
Tomorrow nightDown to 40°4° by 4 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
Sat 5a	Clear	40°4° (likely 40°4° to 43°6°)	37°3°	0%	3 mph5 km/h from E, gusts 7 mph11 km/h	92%	0%	0
Sat 6a	Clear	39°4° (likely 39°4° to 42°6°)	37°3°	0%	3 mph5 km/h from E, gusts 7 mph11 km/h	95%	0%	0
Sat 7a	Clear	38°3° (likely 38°3° to 41°5°)	38°3°	0%	2 mph3 km/h from E, gusts 7 mph11 km/h	97%	1%	0
Sat 8a	Sunny	38°3° (likely 38°3° to 41°5°)	38°3°	0%	2 mph3 km/h from E, gusts 7 mph11 km/h	97%	0%	0
Sat 9a	Sunny	41°5° (likely 41°5° to 45°7°)	41°5°	0%	2 mph3 km/h from E, gusts 6 mph10 km/h	91%	0%	0
Sat 10a	Sunny	48°9° (likely 48°9° to 51°11°)	48°9°	0%	2 mph3 km/h from SE, gusts 8 mph13 km/h	77%	0%	1
Sat 11a	Sunny	53°12° (likely 53°12° to 55°13°)	53°12°	0%	2 mph3 km/h from SE, gusts 8 mph12 km/h	65%	0%	3
Sat 12p	Sunny	57°14° (likely 57°14° to 59°15°)	57°14°	0%	2 mph3 km/h from SE, gusts 6 mph9 km/h	55%	0%	3
Sat 1p	Sunny	60°16° (likely 60°16° to 62°17°)	61°16°	0%	2 mph3 km/h from SE, gusts 5 mph8 km/h	50%	0%	4
Sat 2p	Sunny	62°17° (likely 62°17° to 63°17°)	62°17°	0%	2 mph3 km/h from SE, gusts 5 mph9 km/h	46%	0%	4
Sat 3p	Sunny	63°17° (likely 63°17° to 64°18°)	63°17°	0%	2 mph3 km/h from SE, gusts 6 mph9 km/h	45%	2%	4
Sat 4p	Sunny	64°18° (likely 63°17° to 64°18°)	64°18°	0%	2 mph3 km/h from E, gusts 6 mph10 km/h	42%	1%	3
Sat 5p	Sunny	63°17° (likely 62°17° to 63°17°)	63°17°	0%	3 mph5 km/h from E, gusts 7 mph11 km/h	42%	2%	2
Sat 6p	Clear	60°16° (likely 59°15° to 60°16°)	61°16°	0%	3 mph5 km/h from E, gusts 7 mph11 km/h	45%	0%	1
Sat 7p	Clear	57°14° (likely 54°12° to 57°14°)	57°14°	0%	3 mph5 km/h from E, gusts 6 mph10 km/h	52%	0%	0
Sat 8p	Clear	52°11° (likely 51°11° to 53°12°)	52°11°	0%	3 mph5 km/h from E, gusts 6 mph10 km/h	68%	0%	0
Sat 9p	Clear	49°9° (likely 49°9° to 51°11°)	48°9°	0%	3 mph5 km/h from SE, gusts 7 mph11 km/h	73%	0%	0
Sat 10p	Clear	48°9° (likely 48°9° to 49°9°)	46°8°	0%	5 mph8 km/h from SE, gusts 9 mph14 km/h	77%	4%	0
Sat 11p	Clear	46°8° (likely 46°8° to 49°9°)	43°6°	0%	5 mph8 km/h from SE, gusts 8 mph14 km/h	78%	2%	0
Sun 12a	Clear	44°7° (likely 44°7° to 47°8°)	42°6°	0%	3 mph5 km/h from SE, gusts 8 mph14 km/h	82%	0%	0
Sun 1a	Clear	42°6° (likely 42°6° to 46°8°)	41°5°	0%	3 mph5 km/h from SE, gusts 8 mph13 km/h	85%	0%	0
Sun 2a	Clear	42°6° (likely 42°6° to 45°7°)	42°6°	0%	2 mph3 km/h from SE, gusts 8 mph13 km/h	87%	0%	0
Sun 3a	Clear	40°4° (likely 40°4° to 43°6°)	40°4°	0%	2 mph3 km/h from SE, gusts 6 mph10 km/h	86%	0%	0
Sun 4a	Clear	40°4° (likely 40°4° to 42°6°)	40°4°	0%	2 mph3 km/h from SE, gusts 6 mph10 km/h	89%	0%	0
Sun 5a	Clear	38°3° (likely 38°3° to 41°5°)	38°3°	0%	2 mph3 km/h from SE, gusts 5 mph8 km/h	91%	0%	0
Sun 6a	Clear	37°3° (likely 37°3° to 40°4°)	37°3°	0%	1 mph2 km/h from SE, gusts 4 mph6 km/h	92%	0%	0
Sun 7a	Clear	37°3° (likely 37°3° to 40°4°)	37°3°	0%	1 mph2 km/h from SE, gusts 4 mph6 km/h	94%	0%	0
Sun 8a	Sunny	37°3° (likely 37°3° to 40°4°)	37°3°	0%	2 mph3 km/h from SE, gusts 4 mph6 km/h	95%	0%	0
Sun 9a	Sunny	40°4° (likely 40°4° to 44°7°)	40°4°	0%	2 mph3 km/h from SE, gusts 5 mph8 km/h	93%	0%	0
Sun 10a	Sunny	47°8° (likely 47°8° to 51°11°)	47°8°	0%	2 mph3 km/h from SE, gusts 6 mph10 km/h	79%	0%	1
Sun 11a	Sunny	54°12° (likely 54°12° to 56°13°)	54°12°	0%	2 mph3 km/h from S, gusts 8 mph13 km/h	65%	1%	2
Sun 12p	Sunny	58°14° (likely 58°14° to 60°16°)	58°14°	0%	2 mph3 km/h from S, gusts 7 mph12 km/h	57%	1%	3
Sun 1p	Sunny	62°17° (likely 61°16° to 63°17°)	62°17°	0%	2 mph3 km/h from S, gusts 6 mph10 km/h	50%	1%	4
Sun 2p	Sunny	64°18° (likely 62°17° to 64°18°)	64°18°	0%	2 mph3 km/h from S, gusts 5 mph8 km/h	45%	1%	4
Sun 3p	Sunny	64°18° (likely 63°17° to 65°18°)	64°18°	0%	2 mph3 km/h from S, gusts 5 mph8 km/h	44%	2%	4
Sun 4p	Sunny	65°18° (likely 64°18° to 65°18°)	65°18°	0%	2 mph3 km/h from S, gusts 4 mph6 km/h	42%	4%	3
Sun 5p	Sunny	64°18° (likely 62°17° to 64°18°)	64°18°	0%	1 mph2 km/h from SE, gusts 4 mph6 km/h	41%	20%	2
Sun 6p	Clear	62°17° (likely 58°14° to 62°17°)	62°17°	0%	1 mph2 km/h from SE, gusts 5 mph8 km/h	45%	2%	1
Sun 7p	Clear	57°14° (likely 54°12° to 57°14°)	57°14°	0%	1 mph2 km/h from SE, gusts 6 mph9 km/h	54%	1%	0
Sun 8p	Clear	52°11° (likely 51°11° to 52°11°)	52°11°	0%	1 mph2 km/h from SE, gusts 5 mph8 km/h	71%	2%	0
Sun 9p	Clear	49°9° (likely 49°9° to 50°10°)	49°9°	0%	1 mph2 km/h from S, gusts 3 mph5 km/h	77%	10%	0
Sun 10p	Clear	47°8° (likely 47°8° to 48°9°)	47°8°	0%	1 mph2 km/h from S, gusts 3 mph5 km/h	82%	8%	0
Sun 11p	Clear	46°8° (likely 45°7° to 47°8°)	46°8°	0%	1 mph2 km/h from S, gusts 3 mph4 km/h	85%	6%	0
Mon 12a	Clear	44°7° (likely 43°6° to 47°8°)	45°7°	0%	1 mph2 km/h from S, gusts 3 mph4 km/h	89%	11%	0
Mon 1a	Clear	43°6° (likely 42°6° to 46°8°)	43°6°	0%	1 mph2 km/h from S, gusts 2 mph4 km/h	93%	15%	0
Mon 2a	Clear	42°6° (likely 41°5° to 46°8°)	42°6°	0%	1 mph2 km/h from S, gusts 2 mph3 km/h	96%	9%	0
Mon 3a	Fog	41°5° (likely 39°4° to 47°8°)	41°5°	0%	1 mph2 km/h from S, gusts 2 mph4 km/h	98%	21%	0
Mon 4a	Fog	40°4° (likely 39°4° to 47°8°)	41°5°	0%	1 mph2 km/h from S, gusts 3 mph4 km/h	98%	24%	0

Days ahead

Shaded: typical range for these dates (1991–2020)

Today, Oct 24. Mostly sunny. High 64°18°, low 38°3°. Typical 60°16° / 41°5°. Dry. Forecasts agree.
1. Morning
  6 AM–noon
  Sunny, 38°3°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 64°18°
  Dry
3. Evening
  6 PM–midnight
  Clear, 52°11°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 38°3°
  Dry
Official NWS forecast
Today: Sunny, with a high near 64. Southeast wind around 3 mph.
Tonight: Mostly clear, with a low around 38. East wind around 3 mph.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
63°17°–64°18°
Low, likely
38°3°–41°5°
Typical high / low
60°16° / 41°5°
Wind
7 mph11 km/h, gusts 13 mph22 km/h
UV peak
4
Tomorrow, Oct 25. Fog. High 65°18°, low 38°3°. Typical 60°16° / 41°5°. Dry. Forecasts agree.
1. Morning
  6 AM–noon
  Sunny, 37°3°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 65°18°
  Dry
3. Evening
  6 PM–midnight
  Clear, 52°11°
  Dry
4. Overnight
  midnight–6 AM
  Fog, 40°4°
  Dry
Official NWS forecast
Day: Patchy frost and patchy fog between 7am and 10am. Sunny, with a high near 65. South wind around 2 mph.
Night: Patchy fog after 1am. Mostly clear, with a low around 38. South wind around 2 mph.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
64°18°–65°18°
Low, likely
37°3°–39°4°
Typical high / low
60°16° / 41°5°
Wind
6 mph10 km/h, gusts 12 mph19 km/h
UV peak
4
Monday, Oct 26. Fog. High 67°19°, low 42°6°. Typical 59°15° / 40°4°. Dry. Forecasts agree.
1. Morning
  6 AM–noon
  Sunny, 41°5°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 66°19°
  Dry
3. Evening
  6 PM–midnight
  Clear, 55°13°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 46°8°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Patchy fog before 9am. Sunny, with a high near 67.
Night: Partly cloudy, with a low around 42.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
66°19°–67°19°
Low, likely
38°3°–44°7°
Typical high / low
59°15° / 40°4°
Wind
6 mph9 km/h, gusts 14 mph23 km/h
UV peak
4
Tuesday, Oct 27. Cloudy. High 64°18°, low 43°6°. Typical 59°15° / 40°4°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 45°7°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 65°18°
  Dry
3. Evening
  6 PM–midnight
  Partly cloudy, 54°12°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 47°8°
  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 43.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
63°17°–67°19°
Low, likely
42°6°–47°8°
Typical high / low
59°15° / 40°4°
Wind
6 mph10 km/h, gusts 12 mph20 km/h
UV peak
4
Wednesday, Oct 28. Cloudy. High 67°19°, low 46°8°. Typical 58°14° / 40°4°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Cloudy, 47°9°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 66°19°
  Dry
3. Evening
  6 PM–midnight
  Partly cloudy, 57°14°
  Dry
4. Overnight
  midnight–6 AM
  Partly cloudy, 47°8°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly cloudy, with a high near 67.
Night: Partly cloudy, with a low around 46.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
65°18°–68°20°
Low, likely
46°8°–48°9°
Typical high / low
58°14° / 40°4°
Wind
9 mph14 km/h, gusts 16 mph26 km/h
UV peak
4
Thursday, Oct 29. Mostly sunny. High 70°21°, low 46°8°. Typical 58°14° / 39°4°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 47°8°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 70°21°
  Dry
3. Evening
  6 PM–midnight
  Clear, 57°14°
  Dry
4. Overnight
  midnight–6 AM
  Partly cloudy, 50°10°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Sunny, with a high near 70.
Night: Mostly clear, with a low around 46.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
69°21°–71°22°
Low, likely
45°7°–49°9°
Typical high / low
58°14° / 39°4°
Wind
9 mph14 km/h, gusts 28 mph44 km/h
UV peak
4
Friday, Oct 30. Partly sunny. High 67°19°, low 48°9°. Typical 58°14° / 39°4°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 48°9°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 69°21°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 58°14°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 47°8°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly sunny, with a high near 67.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
67°19°–71°22°
Low, likely
45°7°–50°10°
Typical high / low
58°14° / 39°4°
Wind
9 mph14 km/h, gusts 18 mph29 km/h
UV peak
3
Saturday, Oct 31. Cloudy. High 69°21°, low 48°9°. Typical 57°14° / 39°4°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Cloudy, 46°8°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 68°20°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 59°15°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 55°13°
  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.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
66°19°–72°22°
Low, likely
43°6°–55°13°
Typical high / low
57°14° / 39°4°
Wind
6 mph10 km/h
UV peak
3
Sunday, Nov 1. Drizzle. High 67°19°, low 54°12°. Typical 57°14° / 38°3°. Rain 0.05 in1.3 mm, 30% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 56°13°
  Dry
2. Afternoon
  noon–6 PM
  Drizzle, 67°19°
  30% chance · 0.01 in0.3 mm
3. Evening
  6 PM–midnight
  Drizzle, 61°16°
  30% chance · 0.03 in0.7 mm
4. Overnight
  midnight–6 AM
  Cloudy, 60°16°
  40% chance · 0.03 in0.7 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
59°15°–74°23°
Low, likely
52°11°–55°13°
Typical high / low
57°14° / 38°3°
Wind
12 mph20 km/h, gusts 29 mph46 km/h
Monday, Nov 2. Drizzle. High 65°18°, low 58°14°. Typical 56°13° / 38°3°. Rain 0.18 in4.6 mm, 40% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Drizzle, 61°16°
  40% chance · 0.03 in0.8 mm
2. Afternoon
  noon–6 PM
  Drizzle, 66°19°
  40% chance · 0.07 in1.7 mm
3. Evening
  6 PM–midnight
  Drizzle, 59°15°
  40% chance · 0.06 in1.5 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
59°15°–69°21°
Low, likely
55°13°–59°15°
Typical high / low
56°13° / 38°3°
Wind
10 mph16 km/h, gusts 22 mph36 km/h

10 days15 days30 days

The outlook

Today
Dry, high 64°, low 38°.
Tomorrow
Dry, high 65°, low 38°.
Monday
Dry, high 67°, low 42°.
Rest of week
Highs 64–70°; chance of precipitation on Monday.

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

Ohio River at Dashields Lock and Dam

13 mi

Below flood stage

Level: 14.8 ft
Flow: 22,100 cfs

Forecast peak 14.6 ft Sat 8 AM

Reading from Sat 3:15 AM · NWS gauge page

Ohio River at Pittsburgh

13 mi

Below flood stage

Level: 17.0 ft
Flow: 99,400 cfs

Forecast peak 16.6 ft Sat 8 AM

Reading from Sat 4 AM · NWS gauge page

Allegheny River at Sharpsburg Lock and Dam

19 mi

Below flood stage

Level: 10.7 ft
Flow: 7,570 cfs

Forecast peak 10.7 ft Sat 8 AM

Reading from Sat 3:30 AM · NWS gauge page

Chartiers Creek at Carnegie

7.5 mi

Below flood stage

Level: 1.4 ft
Flow: 222 cfs

Reading from Sat 3:30 AM · NWS gauge page

For your home

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

Heating this week

About 72% less heating than a typical week.

This week 30Typical 109

Heating degree days, base 65°F

Heat-pump hours, next 7 days

h below 47°F: 23
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 16 hours are near freezing and damp, when outdoor units defrost more often.

Comfort

Dry air outside (dew point 39°F).

Open the windows?

Today, 1:00 PM–6:00 PM

Good stretch to open the windows.

Is this typical?

Pittsburgh International Airport · official normals 1991–2020 · records 1875–2026

Oct 24, today vs a typical year

Today’s expected high is 4°2° warmer than typical.

Last 7 days vs normal

On average 2°1° colder than normal (daily mean temperature).

−6°−3°SunOct 18
−2°−1°MonOct 19
±0°TueOct 20
±0°WedOct 21
−2°−1°ThuOct 22
—FriOct 23
—SatOct 24

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

Sun & moon

Sun

Daylight: 10 h 46 min; Losing 2 min 30 s a day; shortest Dec 21, 1 h 29 min less
Golden hour: 5:50–6:45 PM; Morning 7:24–8:19 AM
Blue hour: 6:45–6:55 PM; Morning 7:13–7:24 AM; first light 7:13 AM

Stars tonight? Good

Clear 5:11–7:13 AM; moon 96% lit, sets 5:53 AM.

Moon

Waxing gibbous

96% lit · growing

Today: sets 5:53 AM · rises 5:25 PM
Full moon: Oct 26
New moon: Nov 9

Looking southwest from McDonald.Skyline from USGS elevation data, heights drawn up to 6× taller. Sky, sun and moon as they are now.

McDonald, PA weather

Next 2 hours

Next 48 hours

Days ahead

The outlook

Today

Tomorrow

Monday

Rest of week

What changed since yesterday

Radar

Rivers

Ohio River at Dashields Lock and Dam

Ohio River at Pittsburgh

Allegheny River at Sharpsburg Lock and Dam

Chartiers Creek at Carnegie

For your home

Heating this week

Heat-pump hours, next 7 days

Comfort

Open the windows?

Is this typical?

Oct 24, today vs a typical year

Last 7 days vs normal

Sun & moon

Sun

Stars tonight? Good

Moon