Observed 2:20 AM EDT at KABE

Chestnut Hill, PA weather

Clear and 36°2°.

Mostly agree

Now 36°2°

Clear

Wind: Calm; Light through 2 PM
Dew point: 30°−1°; Dry, static shocks likely
UV index: 0Low; Moderate 11 AM–4 PM · peak 4
Air quality: 41Good; PM2.5 (fine particles) · tomorrow moderate
Pressure: 30.49 inHg1033 hPa; Steady over the last 3 h

No precipitation expected in the next 2 hours.

From forecast models

Next 48 hours

14°8° cooler than this time yesterday (48°9° then, 34°1° now)

Good hours for

Below freezing tonight 3–8 AM (low 31°−1°)
Above 50°10° today by 11 AM
High 62°17° today at 4 PM
Below 50°10° tonight after 8 PM
Below freezing tonight 4–8 AM (low 31°−1°)

TonightNear 33°1° · freezing, low 32°0° · Clear
This morningUp to 53°12° by 11 AM · freezing, low 31°−1° · Partly cloudy
This afternoonUp to 62°17° by 4 PM · Clear
TonightDown to 32°0° by 4 AM · freezing, low 32°0° · Clear
Tomorrow morningUp to 54°12° by 11 AM · freezing, low 31°−1° · Clear
Tomorrow afternoonUp to 65°18° by 3 PM · Clear
Tomorrow nightDown to 40°4° by 1 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 2a	Clear	33°1° (likely 33°1° to 40°4°)	33°1°	0%	0 mph0 km/h, gusts 5 mph9 km/h	100%	0%	0
Sat 3a	Clear	32°0° (likely 32°0° to 39°4°)	32°0°	0%	0 mph0 km/h, gusts 7 mph10 km/h	100%	5%	0
Sat 4a	Partly cloudy	32°0° (likely 32°0° to 38°3°)	32°0°	0%	0 mph0 km/h, gusts 7 mph11 km/h	100%	15%	0
Sat 5a	Clear	32°0° (likely 32°0° to 38°3°)	32°0°	0%	0 mph0 km/h, gusts 7 mph12 km/h	100%	38%	0
Sat 6a	Clear	31°−1° (likely 31°−1° to 37°3°)	31°−1°	0%	0 mph0 km/h, gusts 7 mph11 km/h	100%	44%	0
Sat 7a	Partly sunny	31°−1° (likely 31°−1° to 37°3°)	31°−1°	0%	0 mph0 km/h, gusts 7 mph10 km/h	100%	40%	0
Sat 8a	Sunny	33°1° (likely 33°1° to 38°3°)	33°1°	0%	0 mph0 km/h, gusts 6 mph10 km/h	89%	35%	0
Sat 9a	Sunny	38°3° (likely 38°3° to 42°6°)	38°3°	0%	0 mph0 km/h, gusts 7 mph11 km/h	79%	35%	1
Sat 10a	Sunny	47°8° (likely 46°8° to 48°9°)	47°8°	0%	0 mph0 km/h, gusts 4 mph7 km/h	60%	28%	2
Sat 11a	Mostly sunny	53°12° (likely 50°10° to 54°12°)	53°12°	0%	0 mph0 km/h, gusts 2 mph4 km/h	50%	19%	3
Sat 12p	Sunny	56°13° (likely 54°12° to 57°14°)	56°13°	0%	0 mph0 km/h, gusts 3 mph5 km/h	45%	15%	3
Sat 1p	Mostly sunny	59°15° (likely 57°14° to 60°16°)	59°15°	0%	0 mph0 km/h, gusts 4 mph7 km/h	40%	22%	4
Sat 2p	Sunny	60°16° (likely 59°15° to 61°16°)	60°16°	0%	0 mph0 km/h, gusts 5 mph8 km/h	37%	12%	4
Sat 3p	Sunny	61°16° (likely 59°15° to 62°17°)	61°16°	0%	0 mph0 km/h, gusts 4 mph7 km/h	36%	2%	3
Sat 4p	Sunny	62°17° (likely 59°15° to 62°17°)	62°17°	0%	0 mph0 km/h, gusts 4 mph6 km/h	35%	0%	2
Sat 5p	Sunny	61°16° (likely 58°14° to 61°16°)	61°16°	0%	0 mph0 km/h, gusts 4 mph6 km/h	36%	0%	1
Sat 6p	Clear	57°14° (likely 53°12° to 57°14°)	57°14°	0%	0 mph0 km/h, gusts 4 mph6 km/h	43%	0%	0
Sat 7p	Clear	53°12° (likely 50°10° to 53°12°)	53°12°	0%	0 mph0 km/h, gusts 4 mph7 km/h	50%	0%	0
Sat 8p	Clear	46°8° (likely 46°8° to 51°11°)	46°8°	0%	0 mph0 km/h, gusts 3 mph4 km/h	65%	0%	0
Sat 9p	Clear	44°7° (likely 44°7° to 49°9°)	44°7°	0%	0 mph0 km/h, gusts 2 mph3 km/h	73%	0%	0
Sat 10p	Clear	42°6° (likely 42°6° to 47°8°)	42°6°	0%	0 mph0 km/h, gusts 1 mph2 km/h	79%	0%	0
Sat 11p	Clear	39°4° (likely 39°4° to 45°7°)	39°4°	0%	0 mph0 km/h, gusts 2 mph2 km/h	89%	0%	0
Sun 12a	Clear	37°3° (likely 37°3° to 44°7°)	37°3°	0%	0 mph0 km/h, gusts 1 mph2 km/h	96%	0%	0
Sun 1a	Clear	35°2° (likely 35°2° to 43°6°)	35°2°	0%	0 mph0 km/h, gusts 2 mph3 km/h	100%	0%	0
Sun 2a	Clear	34°1° (likely 34°1° to 42°6°)	34°1°	0%	0 mph0 km/h, gusts 2 mph3 km/h	100%	0%	0
Sun 3a	Clear	33°1° (likely 33°1° to 41°5°)	33°1°	0%	0 mph0 km/h, gusts 2 mph4 km/h	100%	0%	0
Sun 4a	Clear	32°0° (likely 32°0° to 40°4°)	32°0°	0%	0 mph0 km/h, gusts 2 mph3 km/h	100%	0%	0
Sun 5a	Clear	32°0° (likely 32°0° to 39°4°)	32°0°	0%	0 mph0 km/h, gusts 2 mph3 km/h	100%	0%	0
Sun 6a	Clear	31°−1° (likely 31°−1° to 38°3°)	31°−1°	0%	0 mph0 km/h, gusts 2 mph3 km/h	100%	0%	0
Sun 7a	Sunny	31°−1° (likely 31°−1° to 37°3°)	31°−1°	0%	0 mph0 km/h, gusts 3 mph4 km/h	100%	2%	0
Sun 8a	Sunny	33°1° (likely 31°−1° to 37°3°)	33°1°	0%	0 mph0 km/h, gusts 3 mph4 km/h	100%	8%	0
Sun 9a	Sunny	39°4° (likely 37°3° to 41°5°)	39°4°	0%	0 mph0 km/h, gusts 2 mph4 km/h	92%	0%	1
Sun 10a	Sunny	47°8° (likely 47°8° to 49°9°)	47°8°	0%	0 mph0 km/h, gusts 4 mph7 km/h	76%	0%	2
Sun 11a	Sunny	54°12° (likely 54°12° to 55°13°)	54°12°	0%	0 mph0 km/h, gusts 6 mph10 km/h	66%	0%	3
Sun 12p	Sunny	58°14° (likely 58°14° to 59°15°)	58°14°	0%	0 mph0 km/h, gusts 6 mph10 km/h	55%	0%	4
Sun 1p	Sunny	61°16° (likely 60°16° to 63°17°)	61°16°	0%	0 mph0 km/h, gusts 7 mph12 km/h	46%	0%	4
Sun 2p	Sunny	63°17° (likely 61°16° to 64°18°)	63°17°	0%	0 mph0 km/h, gusts 8 mph13 km/h	41%	0%	4
Sun 3p	Sunny	65°18° (likely 62°17° to 65°18°)	65°18°	0%	0 mph0 km/h, gusts 8 mph13 km/h	38%	1%	3
Sun 4p	Sunny	65°18° (likely 61°16° to 65°18°)	65°18°	0%	0 mph0 km/h, gusts 9 mph14 km/h	40%	1%	2
Sun 5p	Sunny	63°17° (likely 60°16° to 64°18°)	63°17°	0%	0 mph0 km/h, gusts 9 mph14 km/h	44%	0%	1
Sun 6p	Clear	59°15° (likely 56°13° to 59°15°)	59°15°	0%	0 mph0 km/h, gusts 6 mph10 km/h	53%	0%	0
Sun 7p	Clear	53°12° (likely 51°11° to 53°12°)	53°12°	0%	0 mph0 km/h, gusts 5 mph8 km/h	66%	0%	0
Sun 8p	Clear	48°9° (likely 48°9° to 50°10°)	48°9°	0%	0 mph0 km/h, gusts 4 mph6 km/h	80%	0%	0
Sun 9p	Clear	46°8° (likely 44°7° to 48°9°)	46°8°	0%	0 mph0 km/h, gusts 3 mph4 km/h	86%	0%	0
Sun 10p	Clear	44°7° (likely 42°6° to 46°8°)	44°7°	0%	0 mph0 km/h, gusts 2 mph4 km/h	93%	0%	0
Sun 11p	Clear	42°6° (likely 40°4° to 45°7°)	42°6°	0%	0 mph0 km/h, gusts 2 mph4 km/h	100%	0%	0
Mon 12a	Clear	41°5° (likely 39°4° to 44°7°)	41°5°	0%	0 mph0 km/h, gusts 3 mph4 km/h	100%	0%	0
Mon 1a	Clear	40°4° (likely 37°3° to 44°7°)	40°4°	0%	0 mph0 km/h, gusts 2 mph4 km/h	100%	1%	0

Days ahead

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

Today, Oct 24. Sunny. High 62°17°, low 31°−1°. Typical 62°17° / 41°5°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 33°1°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 62°17°
  Dry
3. Evening
  6 PM–midnight
  Clear, 46°8°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 32°0°
  Dry
Official NWS forecast
Today: Sunny, with a high near 62. East wind around 0 mph.
Tonight: Partly cloudy, with a low around 31. North wind around 0 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
59°15°–62°17°
Low, likely
31°−1°–37°3°
Typical high / low
62°17° / 41°5°
Wind
7 mph10 km/h
UV peak
4
Tomorrow, Oct 25. Sunny. High 65°18°, low 35°2°. Typical 62°17° / 41°5°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 33°1°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 65°18°
  Dry
3. Evening
  6 PM–midnight
  Clear, 48°9°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 38°3°
  Dry
Official NWS forecast
Day: Sunny, with a high near 65. West wind around 0 mph.
Night: Clear, with a low around 35. West wind around 0 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
62°17°–65°18°
Low, likely
29°−2°–36°2°
Typical high / low
62°17° / 41°5°
Wind
7 mph11 km/h
UV peak
4
Monday, Oct 26. Mostly sunny. High 69°21°, low 44°7°. Typical 62°17° / 40°4°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 37°3°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 68°20°
  Dry
3. Evening
  6 PM–midnight
  Mostly clear, 54°12°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 47°8°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Sunny, with a high near 69.
Night: Mostly clear, with a low around 44.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
66°19°–70°21°
Low, likely
32°0°–44°7°
Typical high / low
62°17° / 40°4°
Wind
9 mph14 km/h, gusts 15 mph23 km/h
UV peak
4
Tuesday, Oct 27. Mostly sunny. High 65°18°, low 37°3°. Typical 61°16° / 40°4°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 45°7°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 60°16°
  Dry
3. Evening
  6 PM–midnight
  Clear, 48°9°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 36°2°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Sunny, with a high near 65.
Night: Mostly clear, with a low around 37.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
59°15°–65°18°
Low, likely
37°3°–44°7°
Typical high / low
61°16° / 40°4°
Wind
10 mph15 km/h, gusts 15 mph25 km/h
UV peak
4
Wednesday, Oct 28. Partly sunny. High 61°16°, low 43°6°. Typical 61°16° / 40°4°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 36°2°
  Dry
2. Afternoon
  noon–6 PM
  Mostly sunny, 58°14°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 49°10°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 42°6°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly sunny, with a high near 61.
Night: Mostly cloudy, with a low around 43.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
56°13°–61°16°
Low, likely
33°1°–43°6°
Typical high / low
61°16° / 40°4°
Wind
7 mph11 km/h, gusts 14 mph23 km/h
UV peak
4
Thursday, Oct 29. Partly sunny. High 68°20°, low 47°8°. Typical 61°16° / 39°4°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 41°5°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 63°17°
  Dry
3. Evening
  6 PM–midnight
  Clear, 53°12°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 45°7°
  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 47.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
61°16°–68°20°
Low, likely
38°3°–47°8°
Typical high / low
61°16° / 39°4°
Wind
8 mph13 km/h, gusts 28 mph45 km/h
UV peak
4
Friday, Oct 30. Mostly sunny. High 69°21°, low 43°6°. Typical 60°16° / 39°4°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Sunny, 43°6°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 69°20°
  Dry
3. Evening
  6 PM–midnight
  Clear, 55°13°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 42°6°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly sunny, with a high near 69.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
66°19°–73°23°
Low, likely
40°4°–46°8°
Typical high / low
60°16° / 39°4°
Wind
10 mph16 km/h, gusts 20 mph31 km/h
UV peak
4
Saturday, Oct 31. Cloudy. High 67°19°, low 43°6°. Typical 60°16° / 39°4°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Sunny, 42°5°
  Dry
2. Afternoon
  noon–6 PM
  Partly sunny, 65°18°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 54°12°
  Dry
4. Overnight
  midnight–6 AM
  Mostly clear, 45°7°
  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
60°16°–71°22°
Low, likely
40°4°–47°8°
Typical high / low
60°16° / 39°4°
Wind
8 mph12 km/h
UV peak
3
Sunday, Nov 1. Cloudy. High 65°18°, low 47°8°. Typical 60°16° / 38°3°. Rain 0.01 in0.3 mm, 30% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 45°7°
  20% chance
2. Afternoon
  noon–6 PM
  Cloudy, 63°17°
  30% chance
3. Evening
  6 PM–midnight
  Drizzle, 54°12°
  30% chance
4. Overnight
  midnight–6 AM
  Drizzle, 53°12°
  20% 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
59°15°–69°21°
Low, likely
42°6°–53°12°
Typical high / low
60°16° / 38°3°
Wind
8 mph13 km/h, gusts 17 mph28 km/h
UV peak
3
Monday, Nov 2. Drizzle. High 66°19°, low 54°12°. Typical 59°15° / 38°3°. Rain 0.24 in6.1 mm, 30% chance. Forecasts agree.
1. Morning
  6 AM–noon
  Cloudy, 57°14°
  30% chance · 0.01 in0.3 mm
2. Afternoon
  noon–6 PM
  Drizzle, 68°20°
  20% chance · 0.12 in2.9 mm
3. Evening
  6 PM–midnight
  Cloudy, 59°15°
  20% chance · 0.09 in2.2 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 agreeIndependent forecasts are close; the range is narrow.
High, likely
66°19°–68°20°
Low, likely
51°11°–58°14°
Typical high / low
59°15° / 38°3°
Wind
15 mph24 km/h, gusts 39 mph62 km/h
UV peak
3

10 days15 days30 days

The outlook

Today
Dry, high 62°, low 31°.
Tomorrow
Dry, high 65°, low 35°, warming up.
Monday
Dry, high 69°, low 44°, warming up.
Rest of week
Mostly dry, highs 61–69°.

Want the meteorologists’ reasoning? Read the NWS forecast discussion (PHI) (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

Delaware River at Easton

2.0 mi

Below flood stage

Level: 1.7 ft

Forecast peak 1.7 ft Sat 2 AM

Reading from Sat 12:30 AM · NWS gauge page

Delaware River at Riegelsville

8.9 mi

Below flood stage

Level: 3.3 ft
Flow: 3,880 cfs

Forecast peak 3.3 ft Sat 2 AM

Reading from Sat 12:30 AM · NWS gauge page

Delaware River at Belvidere

9.7 mi

Below flood stage

Level: 4.0 ft
Flow: 2,870 cfs

Forecast peak 3.9 ft Sat 2 AM

Reading from Sat 12:45 AM · NWS gauge page

Lehigh River at Bethlehem

12 mi

Below flood stage

Level: 1.7 ft
Flow: 1,100 cfs

Forecast peak 1.7 ft Sat 2 AM

Reading from Sat 12:30 AM · NWS gauge page

For your home

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

Heating this week

About 63% less heating than a typical week.

This week 38Typical 101

Heating degree days, base 65°F

Heat-pump hours, next 7 days

h below 47°F: 28
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 30°F).

Open the windows?

Today, 2:00 PM–5:00 PM

Good stretch to open the windows.

Is this typical?

Allentown Lehigh Valley International Airport · official normals 1991–2020 · records 1922–2026

Oct 24, today vs a typical year

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

Last 7 days vs normal

On average 4°2° colder than normal (daily mean temperature).

−9°−5°SatOct 17
−8°−5°SunOct 18
−3°−2°MonOct 19
+1°±0°TueOct 20
−3°−2°WedOct 21
±0°ThuOct 22
—FriOct 23

Chestnut Hill weather by month: normals, records, snow and freeze dates

Sun & moon

Sun

Daylight: 10 h 45 min; Losing 2 min 30 s a day; shortest Dec 21, 1 h 30 min less
Golden hour: 5:29–6:24 PM; Morning 7:04–8:00 AM
Blue hour: 6:24–6:35 PM; Morning 6:54–7:04 AM; first light 6:54 AM

Stars tonight? Fair

Mostly clear 2:41–5 AM, but the moon is 96% lit and up.

Moon

Waxing gibbous

95% lit · growing

Today: sets 5:33 AM · rises 5:04 PM
Full moon: Oct 26
New moon: Nov 9

Looking north from Chestnut Hill. The highest point on the skyline is about 3,900 ft, 22 mi away.Skyline from USGS elevation data, heights drawn up to 6× taller. Sky, sun and moon as they are now.

Chestnut Hill, PA weather

Next 2 hours

Next 48 hours

Days ahead

The outlook

Today

Tomorrow

Monday

Rest of week

What changed since yesterday

Radar

Rivers

Delaware River at Easton

Delaware River at Riegelsville

Delaware River at Belvidere

Lehigh River at Bethlehem

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? Fair

Moon