Observed 9:05 PM EDT at KRDG

Pennwyn, PA weather

Clear and 46°8°.

Forecasts agree

Now 46°8°

Clear

Wind: Calm; Light through 9 AM
Dew point: 36°2°; Comfortable
UV tomorrow: 4Moderate; Moderate 11 AM–4 PM · peak 4
Pressure: 30.55 inHg1035 hPa; Rising slowly · +0.02 inHg+0.6 hPa in 3 h

No precipitation expected in the next 2 hours.

From forecast models

Next 48 hours

About the same as this time yesterday (46°8° then, 46°8° now)

Good hours for

Low 34°1° tonight at 5 AM
Above 50°10° tomorrow by 10 AM
High 64°18° tomorrow at 3 PM
Below 50°10° tomorrow night after 9 PM

TonightDown to 34°1° by 5 AM · Clear
Tomorrow morningUp to 55°13° by 11 AM · Clear
Tomorrow afternoonUp to 64°18° by 3 PM · Clear
Tomorrow nightDown to 39°4° by 4 AM · Clear
Monday morningUp to 56°13° by 11 AM · Clear
Monday afternoonUp to 68°20° by 3 PM · Clear
Monday nightDown to 55°13° by 8 PM · 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 9p	Clear	45°7° (likely 45°7° to 49°9°)	45°7°	0%	0 mph0 km/h, gusts 4 mph6 km/h	68%	0%	0
Sat 10p	Clear	42°6° (likely 42°6° to 48°9°)	42°6°	0%	0 mph0 km/h, gusts 4 mph7 km/h	73%	0%	0
Sat 11p	Clear	39°4° (likely 39°4° to 47°8°)	39°4°	0%	0 mph0 km/h, gusts 4 mph7 km/h	85%	0%	0
Sun 12a	Clear	38°3° (likely 38°3° to 45°7°)	38°3°	0%	0 mph0 km/h, gusts 3 mph4 km/h	85%	0%	0
Sun 1a	Clear	36°2° (likely 36°2° to 43°6°)	36°2°	0%	0 mph0 km/h, gusts 3 mph4 km/h	92%	0%	0
Sun 2a	Clear	35°2° (likely 35°2° to 43°6°)	35°2°	0%	0 mph0 km/h, gusts 2 mph3 km/h	96%	0%	0
Sun 3a	Clear	35°2° (likely 35°2° to 42°6°)	35°2°	0%	0 mph0 km/h, gusts 1 mph2 km/h	96%	0%	0
Sun 4a	Clear	35°2° (likely 35°2° to 43°6°)	35°2°	0%	0 mph0 km/h, gusts 2 mph3 km/h	92%	0%	0
Sun 5a	Clear	34°1° (likely 34°1° to 43°6°)	34°1°	0%	0 mph0 km/h, gusts 2 mph3 km/h	96%	0%	0
Sun 6a	Clear	34°1° (likely 34°1° to 42°6°)	34°1°	0%	0 mph0 km/h, gusts 1 mph2 km/h	96%	0%	0
Sun 7a	Sunny	34°1° (likely 34°1° to 41°5°)	34°1°	0%	0 mph0 km/h, gusts 1 mph2 km/h	92%	0%	0
Sun 8a	Sunny	35°2° (likely 34°1° to 40°4°)	35°2°	0%	0 mph0 km/h, gusts 1 mph2 km/h	92%	0%	0
Sun 9a	Sunny	43°6° (likely 39°4° to 45°7°)	43°6°	0%	0 mph0 km/h, gusts 1 mph2 km/h	73%	0%	1
Sun 10a	Sunny	50°10° (likely 49°9° to 52°11°)	50°10°	0%	0 mph0 km/h, gusts 3 mph5 km/h	63%	0%	2
Sun 11a	Sunny	55°13° (likely 55°13° to 56°13°)	55°13°	0%	0 mph0 km/h, gusts 5 mph9 km/h	55%	0%	3
Sun 12p	Sunny	58°14° (likely 58°14° to 60°16°)	58°14°	0%	0 mph0 km/h, gusts 6 mph10 km/h	51%	1%	4
Sun 1p	Sunny	61°16° (likely 60°16° to 62°17°)	61°16°	0%	0 mph0 km/h, gusts 8 mph13 km/h	46%	0%	4
Sun 2p	Sunny	63°17° (likely 62°17° to 63°17°)	63°17°	0%	5 mph8 km/h from W, gusts 7 mph11 km/h	41%	1%	4
Sun 3p	Sunny	64°18° (likely 62°17° to 64°18°)	64°18°	0%	5 mph8 km/h from W, gusts 7 mph11 km/h	41%	1%	3
Sun 4p	Sunny	64°18° (likely 62°17° to 64°18°)	64°18°	0%	5 mph8 km/h from SW, gusts 8 mph12 km/h	43%	1%	2
Sun 5p	Sunny	63°17° (likely 60°16° to 63°17°)	63°17°	0%	5 mph8 km/h from SW, gusts 7 mph12 km/h	44%	0%	1
Sun 6p	Clear	59°15° (likely 55°13° to 59°15°)	59°15°	0%	0 mph0 km/h, gusts 6 mph9 km/h	53%	0%	0
Sun 7p	Clear	55°13° (likely 52°11° to 55°13°)	55°13°	0%	0 mph0 km/h, gusts 4 mph7 km/h	61%	0%	0
Sun 8p	Clear	50°10° (likely 49°9° to 53°12°)	50°10°	0%	0 mph0 km/h, gusts 4 mph7 km/h	71%	0%	0
Sun 9p	Clear	48°9° (likely 47°8° to 52°11°)	48°9°	0%	0 mph0 km/h, gusts 6 mph10 km/h	77%	0%	0
Sun 10p	Clear	45°7° (likely 45°7° to 52°11°)	45°7°	0%	0 mph0 km/h, gusts 8 mph12 km/h	86%	0%	0
Sun 11p	Clear	42°6° (likely 42°6° to 52°11°)	42°6°	0%	0 mph0 km/h, gusts 8 mph12 km/h	96%	0%	0
Mon 12a	Clear	41°5° (likely 41°5° to 51°11°)	41°5°	0%	0 mph0 km/h, gusts 8 mph13 km/h	96%	0%	0
Mon 1a	Mostly clear	40°4° (likely 40°4° to 51°11°)	40°4°	0%	0 mph0 km/h, gusts 8 mph13 km/h	100%	14%	0
Mon 2a	Clear	40°4° (likely 40°4° to 50°10°)	40°4°	0%	0 mph0 km/h, gusts 8 mph12 km/h	100%	1%	0
Mon 3a	Clear	40°4° (likely 40°4° to 47°8°)	40°4°	0%	0 mph0 km/h, gusts 6 mph10 km/h	96%	0%	0
Mon 4a	Clear	39°4° (likely 39°4° to 46°8°)	39°4°	0%	0 mph0 km/h, gusts 5 mph9 km/h	96%	0%	0
Mon 5a	Clear	39°4° (likely 39°4° to 45°7°)	39°4°	0%	0 mph0 km/h, gusts 6 mph10 km/h	92%	0%	0
Mon 6a	Clear	38°3° (likely 38°3° to 45°7°)	38°3°	0%	0 mph0 km/h, gusts 6 mph10 km/h	96%	0%	0
Mon 7a	Sunny	38°3° (likely 37°3° to 44°7°)	38°3°	0%	0 mph0 km/h, gusts 7 mph11 km/h	92%	7%	0
Mon 8a	Sunny	39°4° (likely 37°3° to 43°6°)	39°4°	0%	0 mph0 km/h, gusts 6 mph10 km/h	92%	3%	0
Mon 9a	Sunny	46°8° (likely 41°5° to 51°11°)	46°8°	0%	0 mph0 km/h, gusts 7 mph11 km/h	76%	10%	1
Mon 10a	Sunny	52°11° (likely 50°10° to 57°14°)	52°11°	0%	5 mph8 km/h from W, gusts 8 mph13 km/h	66%	10%	2
Mon 11a	Sunny	56°13° (likely 56°13° to 61°16°)	56°13°	0%	5 mph8 km/h from W, gusts 10 mph17 km/h	64%	5%	3
Mon 12p	Sunny	60°16° (likely 60°16° to 64°18°)	60°16°	0%	5 mph8 km/h from W, gusts 13 mph21 km/h	58%	10%	4
Mon 1p	Sunny	63°17° (likely 63°17° to 65°18°)	63°17°	0%	5 mph8 km/h from W, gusts 13 mph20 km/h	54%	0%	4
Mon 2p	Sunny	66°19° (likely 65°18° to 66°19°)	66°19°	0%	5 mph8 km/h from W, gusts 13 mph20 km/h	48%	6%	4
Mon 3p	Sunny	68°20° (likely 65°18° to 68°20°)	68°20°	0%	5 mph8 km/h from W, gusts 13 mph21 km/h	45%	4%	3
Mon 4p	Sunny	68°20° (likely 65°18° to 68°20°)	68°20°	0%	5 mph8 km/h from W, gusts 13 mph21 km/h	47%	2%	2
Mon 5p	Sunny	67°19° (likely 63°17° to 67°19°)	67°19°	0%	5 mph8 km/h from W, gusts 11 mph18 km/h	49%	1%	1
Mon 6p	Clear	63°17° (likely 58°14° to 63°17°)	63°17°	0%	5 mph8 km/h from W, gusts 7 mph11 km/h	56%	3%	0
Mon 7p	Clear	59°15° (likely 55°13° to 59°15°)	59°15°	0%	5 mph8 km/h from W, gusts 5 mph8 km/h	64%	4%	0
Mon 8p	Clear	55°13° (likely 53°12° to 56°13°)	55°13°	0%	5 mph8 km/h from W, gusts 4 mph7 km/h	74%	7%	0

Days ahead

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

Today, Oct 24. Sunny. High 61°16°, low 34°1°. Typical 62°17° / 42°6°. Dry. Forecasts agree.
1. Evening
  6 PM–midnight
  Clear, 39°4°
  Dry
2. Overnight
  midnight–6 AM
  Clear, 34°1°
  Dry
Official NWS forecast
Tonight: Clear, with a low around 34. Wind around 0 mph.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
60°16°–62°17°
Low, likely
32°0°–34°1°
Typical high / low
62°17° / 42°6°
Wind
6 mph9 km/h
UV peak
4
Tomorrow, Oct 25. Sunny. High 65°18°, low 38°3°. Typical 62°17° / 42°6°. Dry. Forecasts agree.
1. Morning
  6 AM–noon
  Sunny, 35°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, 39°4°
  Dry
Official NWS forecast
Day: Sunny, with a high near 65. West wind 0 to 5 mph.
Night: Mostly clear, with a low around 38. West wind around 0 mph.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
62°17°–65°18°
Low, likely
34°1°–40°4°
Typical high / low
62°17° / 42°6°
Wind
8 mph13 km/h
UV peak
4
Monday, Oct 26. Mostly sunny. High 68°20°, low 44°7°. Typical 62°17° / 41°5°. Dry. Forecasts agree.
1. Morning
  6 AM–noon
  Sunny, 39°4°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 68°20°
  Dry
3. Evening
  6 PM–midnight
  Clear, 55°13°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 48°9°
  Dry
Official NWS forecast
Day: Sunny, with a high near 68. West wind 0 to 5 mph.
Night: Clear, with a low around 44. Northwest wind 0 to 5 mph.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
65°18°–68°20°
Low, likely
37°3°–44°7°
Typical high / low
62°17° / 41°5°
Wind
8 mph12 km/h, gusts 18 mph28 km/h
UV peak
4
Tuesday, Oct 27. Mostly sunny. High 64°18°, low 39°4°. Typical 61°16° / 41°5°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 46°8°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 61°16°
  Dry
3. Evening
  6 PM–midnight
  Clear, 49°10°
  Dry
4. Overnight
  midnight–6 AM
  Mostly clear, 40°5°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Sunny, with a high near 64.
Night: Mostly clear, with a low around 39.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
61°16°–64°18°
Low, likely
39°4°–46°8°
Typical high / low
61°16° / 41°5°
Wind
8 mph14 km/h, gusts 17 mph28 km/h
UV peak
4
Wednesday, Oct 28. Cloudy. High 63°17°, low 45°7°. Typical 61°16° / 41°5°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Cloudy, 41°5°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 60°16°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 52°11°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 46°8°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly sunny, with a high near 63.
Night: Partly cloudy, with a low around 45.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
58°14°–63°17°
Low, likely
36°2°–45°7°
Typical high / low
61°16° / 41°5°
Wind
6 mph9 km/h, gusts 14 mph22 km/h
UV peak
3
Thursday, Oct 29. Partly sunny. High 69°21°, low 48°9°. Typical 61°16° / 40°4°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 46°8°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 66°19°
  Dry
3. Evening
  6 PM–midnight
  Clear, 55°13°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 49°9°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly sunny, with a high near 69.
Night: Mostly clear, with a low around 48.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
65°18°–69°21°
Low, likely
44°7°–48°9°
Typical high / low
61°16° / 40°4°
Wind
9 mph14 km/h, gusts 29 mph46 km/h
UV peak
4
Friday, Oct 30. Mostly sunny. High 72°22°, low 48°9°. Typical 60°16° / 40°4°. Dry. Forecasts agree.
1. Morning
  6 AM–noon
  Sunny, 48°9°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 71°22°
  Dry
3. Evening
  6 PM–midnight
  Clear, 59°15°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 48°9°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Sunny, with a high near 72.
Night: Mostly clear, with a low around 48.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
71°22°–72°22°
Low, likely
43°6°–51°11°
Typical high / low
60°16° / 40°4°
Wind
6 mph10 km/h, gusts 17 mph28 km/h
UV peak
4
Saturday, Oct 31. Partly sunny. High 70°21°, low 47°8°. Typical 60°16° / 40°4°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Mostly sunny, 47°8°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 68°20°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 56°13°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 51°11°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly sunny, with a high near 70.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
60°16°–70°21°
Low, likely
43°6°–51°11°
Typical high / low
60°16° / 40°4°
Wind
6 mph10 km/h, gusts 15 mph24 km/h
UV peak
3
Sunday, Nov 1. Drizzle. High 68°20°, low 50°10°. Typical 59°15° / 40°4°. Rain 0.02 in0.5 mm, 30% chance. Mostly agree.
1. Morning
  6 AM–noon
  Cloudy, 52°11°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 68°20°
  30% chance
3. Evening
  6 PM–midnight
  Drizzle, 62°17°
  30% chance · 0.04 in1 mm
4. Overnight
  midnight–6 AM
  Drizzle, 61°16°
  30% chance · 0.11 in2.7 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.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
65°18°–71°22°
Low, likely
46°8°–53°12°
Typical high / low
59°15° / 40°4°
Wind
11 mph17 km/h, gusts 32 mph51 km/h
UV peak
3
Monday, Nov 2. Drizzle. High 70°21°, low 59°15°. Typical 59°15° / 39°4°. Rain 0.21 in5.3 mm, 40% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Drizzle, 62°17°
  30% chance · 0.08 in1.9 mm
2. Afternoon
  noon–6 PM
  Drizzle, 70°21°
  30% chance · 0.02 in0.4 mm
3. Evening
  6 PM–midnight
  Clear, 64°18°
  30% chance · 0.02 in0.5 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
67°19°–76°24°
Low, likely
55°13°–68°20°
Typical high / low
59°15° / 39°4°
Wind
15 mph23 km/h, gusts 38 mph61 km/h
UV peak
3

10 days15 days30 days

The outlook

Today
Dry, high 61°, low 34°.
Tomorrow
Dry, high 65°, low 38°, warming up.
Monday
Dry, high 68°, low 44°, warming up.
Rest of week
Mostly dry, highs 63–72°.

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

Schuylkill River at Reading

3.7 mi

Below flood stage

Level: 3.5 ft
Flow: 751 cfs

Forecast peak 3.4 ft Sun 2 AM

Reading from Sat 7:15 PM · NWS gauge page

Schuylkill River at Berne

16 mi

Below flood stage

Level: 5.0 ft
Flow: 239 cfs

Forecast peak 5.0 ft Sun 2 AM

Reading from Sat 7 PM · NWS gauge page

Schuylkill River at Pottstown

17 mi

Below flood stage

Level: 2.1 ft
Flow: 893 cfs

Forecast peak 2.0 ft Sun 2 AM

Reading from Sat 7:15 PM · NWS gauge page

Conestoga River at Lancaster

23 mi

Below flood stage

Level: 3.6 ft
Flow: 254 cfs

Forecast peak 3.6 ft Sun 2 AM

Reading from Sat 7:15 PM · NWS gauge page

For your home

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

Heating this week

About 67% less heating than a typical week.

This week 32Typical 97

Heating degree days, base 65°F

Heat-pump hours, next 7 days

h below 47°F: 24
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 36°F).

Open the windows?

Sun, 1:00 PM–5:00 PM

Good stretch to open the windows (air quality forecast not available for part of this window).

Is this typical?

Reading Regional Airport · official normals 1991–2020 · records 1888–2026

Oct 24, today vs a typical year

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

Last 7 days vs normal

On average 3°1° colder than normal (daily mean temperature).

−8°−4°SunOct 18
−2°−1°MonOct 19
+1°±0°TueOct 20
−1°WedOct 21
−1°ThuOct 22
−2°−1°FriOct 23
—SatOct 24

Pennwyn 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: 5:33–6:28 PM; Morning 7:07–8:02 AM
Blue hour: 6:28–6:38 PM; Morning 6:56–7:07 AM; first light 6:56 AM

Stars tonight? Fair

Clear 9:28 PM–6:57 AM, but the moon is 99% lit and up.

Moon

Waxing gibbous

98% lit · growing

Today: sets 5:36 AM · rises 5:07 PM
Full moon: Oct 26
New moon: Nov 9

Looking southwest from Pennwyn. The highest point on the skyline is about 3,000 ft, 14 mi away.Skyline from USGS elevation data, heights drawn up to 5.5× taller. Sky, sun and moon as they are now.

Pennwyn, PA weather

Next 2 hours

Next 48 hours

Days ahead

The outlook

Today

Tomorrow

Monday

Rest of week

What changed since yesterday

Radar

Rivers

Schuylkill River at Reading

Schuylkill River at Berne

Schuylkill River at Pottstown

Conestoga River at Lancaster

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