Observed 7:55 PM EDT at KMQS

Caln, PA weather

Hazy and 47°8°.

Forecasts agree

Now 47°8°

Haze

Wind: Calm; Light through 8 AM
Visibility: 1.2 mi1.9 km; Haze · under 3 mi5 km
Dew point: 38°3°; Comfortable
UV tomorrow: 4Moderate; Moderate 11 AM–4 PM · peak 4
Air quality: 56Moderate; Main pollutant: PM2.5 (fine particles)
Pressure: 30.54 inHg1034 hPa; Rising slowly · +0.03 inHg+0.9 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 (48°9° then, 47°8° now)

Good hours for

Low 35°2° tomorrow at 6 AM
Above 50°10° tomorrow by 10 AM
High 64°18° tomorrow at 3 PM
Below 50°10° tomorrow night after 8 PM

TonightDown to 36°2° by 4 AM · Clear
Tomorrow morningUp to 56°13° by 11 AM · Clear
Tomorrow afternoonUp to 64°18° by 3 PM · Clear
Tomorrow nightDown to 40°4° by 4 AM · Clear
Monday morningUp to 57°14° by 11 AM · Clear
Monday afternoonUp to 66°19° by 3 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 8p	Clear	46°8° (likely 46°8° to 50°10°)	46°8°	0%	0 mph0 km/h, gusts 2 mph3 km/h	63%	0%	0
Sat 9p	Clear	44°7° (likely 44°7° to 49°9°)	44°7°	0%	0 mph0 km/h, gusts 3 mph4 km/h	68%	0%	0
Sat 10p	Clear	43°6° (likely 43°6° to 47°8°)	43°6°	0%	0 mph0 km/h, gusts 4 mph6 km/h	70%	23%	0
Sat 11p	Clear	41°5° (likely 41°5° to 46°8°)	41°5°	0%	0 mph0 km/h, gusts 3 mph6 km/h	76%	25%	0
Sun 12a	Clear	40°4° (likely 40°4° to 45°7°)	40°4°	0%	0 mph0 km/h, gusts 4 mph6 km/h	79%	2%	0
Sun 1a	Clear	38°3° (likely 38°3° to 44°7°)	38°3°	0%	0 mph0 km/h, gusts 3 mph5 km/h	85%	0%	0
Sun 2a	Clear	37°3° (likely 37°3° to 43°6°)	37°3°	0%	0 mph0 km/h, gusts 3 mph5 km/h	89%	0%	0
Sun 3a	Clear	37°3° (likely 37°3° to 43°6°)	37°3°	0%	0 mph0 km/h, gusts 3 mph4 km/h	85%	0%	0
Sun 4a	Clear	36°2° (likely 36°2° to 42°6°)	36°2°	0%	0 mph0 km/h, gusts 4 mph6 km/h	89%	0%	0
Sun 5a	Clear	36°2° (likely 36°2° to 41°5°)	36°2°	0%	0 mph0 km/h, gusts 3 mph5 km/h	89%	0%	0
Sun 6a	Clear	35°2° (likely 35°2° to 41°5°)	35°2°	0%	0 mph0 km/h, gusts 4 mph7 km/h	92%	0%	0
Sun 7a	Sunny	35°2° (likely 35°2° to 40°4°)	35°2°	0%	0 mph0 km/h, gusts 4 mph6 km/h	92%	0%	0
Sun 8a	Sunny	37°3° (likely 37°3° to 40°4°)	37°3°	0%	0 mph0 km/h, gusts 3 mph4 km/h	89%	0%	0
Sun 9a	Sunny	45°7° (likely 43°6° to 45°7°)	45°7°	0%	0 mph0 km/h, gusts 2 mph4 km/h	70%	0%	1
Sun 10a	Sunny	52°11° (likely 51°11° to 53°12°)	52°11°	0%	0 mph0 km/h, gusts 2 mph3 km/h	61%	0%	2
Sun 11a	Sunny	56°13° (likely 56°13° to 59°15°)	56°13°	0%	0 mph0 km/h, gusts 5 mph8 km/h	55%	0%	3
Sun 12p	Sunny	59°15° (likely 59°15° to 62°17°)	59°15°	0%	0 mph0 km/h, gusts 7 mph11 km/h	47%	1%	4
Sun 1p	Sunny	61°16° (likely 61°16° to 63°17°)	61°16°	0%	5 mph8 km/h from W, gusts 6 mph9 km/h	46%	2%	4
Sun 2p	Sunny	63°17° (likely 62°17° to 64°18°)	63°17°	0%	5 mph8 km/h from W, gusts 6 mph9 km/h	41%	1%	4
Sun 3p	Sunny	64°18° (likely 63°17° to 65°18°)	64°18°	0%	5 mph8 km/h from W, gusts 6 mph10 km/h	41%	1%	3
Sun 4p	Sunny	64°18° (likely 63°17° to 64°18°)	64°18°	0%	0 mph0 km/h, gusts 6 mph10 km/h	41%	0%	2
Sun 5p	Sunny	63°17° (likely 61°16° to 63°17°)	63°17°	0%	0 mph0 km/h, gusts 6 mph10 km/h	44%	0%	1
Sun 6p	Clear	59°15° (likely 56°13° to 59°15°)	59°15°	0%	0 mph0 km/h, gusts 4 mph7 km/h	53%	0%	0
Sun 7p	Clear	54°12° (likely 52°11° to 54°12°)	54°12°	0%	0 mph0 km/h, gusts 5 mph8 km/h	64%	0%	0
Sun 8p	Clear	48°9° (likely 48°9° to 51°11°)	48°9°	0%	0 mph0 km/h, gusts 6 mph9 km/h	77%	0%	0
Sun 9p	Clear	47°8° (likely 47°8° to 50°10°)	47°8°	0%	0 mph0 km/h, gusts 6 mph10 km/h	76%	0%	0
Sun 10p	Clear	45°7° (likely 45°7° to 49°9°)	45°7°	0%	0 mph0 km/h, gusts 6 mph9 km/h	82%	0%	0
Sun 11p	Clear	43°6° (likely 43°6° to 48°9°)	43°6°	0%	0 mph0 km/h, gusts 6 mph9 km/h	89%	0%	0
Mon 12a	Clear	43°6° (likely 43°6° to 47°8°)	43°6°	0%	0 mph0 km/h, gusts 6 mph10 km/h	89%	0%	0
Mon 1a	Clear	42°6° (likely 42°6° to 45°7°)	42°6°	0%	0 mph0 km/h, gusts 7 mph12 km/h	93%	7%	0
Mon 2a	Clear	41°5° (likely 41°5° to 45°7°)	41°5°	0%	0 mph0 km/h, gusts 8 mph13 km/h	96%	4%	0
Mon 3a	Clear	41°5° (likely 41°5° to 44°7°)	41°5°	0%	0 mph0 km/h, gusts 8 mph13 km/h	96%	0%	0
Mon 4a	Clear	40°4° (likely 40°4° to 44°7°)	40°4°	0%	0 mph0 km/h, gusts 8 mph13 km/h	96%	3%	0
Mon 5a	Clear	40°4° (likely 40°4° to 44°7°)	38°3°	0%	5 mph8 km/h from W, gusts 9 mph14 km/h	96%	9%	0
Mon 6a	Clear	40°4° (likely 39°4° to 44°7°)	38°3°	0%	5 mph8 km/h from W, gusts 8 mph14 km/h	96%	11%	0
Mon 7a	Sunny	40°4° (likely 39°4° to 43°6°)	38°3°	0%	5 mph8 km/h from W, gusts 8 mph13 km/h	92%	11%	0
Mon 8a	Sunny	41°5° (likely 39°4° to 44°7°)	39°4°	0%	5 mph8 km/h from W, gusts 9 mph15 km/h	93%	10%	0
Mon 9a	Sunny	47°8° (likely 46°8° to 48°9°)	46°8°	0%	5 mph8 km/h from W, gusts 8 mph13 km/h	79%	8%	1
Mon 10a	Sunny	52°11° (likely 52°11° to 55°13°)	52°11°	0%	5 mph8 km/h from W, gusts 13 mph20 km/h	71%	11%	2
Mon 11a	Sunny	57°14° (likely 57°14° to 59°15°)	57°14°	0%	5 mph8 km/h from W, gusts 13 mph20 km/h	64%	7%	3
Mon 12p	Sunny	61°16° (likely 61°16° to 62°17°)	61°16°	0%	5 mph8 km/h from W, gusts 13 mph20 km/h	56%	6%	4
Mon 1p	Sunny	63°17° (likely 63°17° to 65°18°)	63°17°	0%	5 mph8 km/h from NW, gusts 12 mph20 km/h	52%	7%	4
Mon 2p	Sunny	65°18° (likely 65°18° to 66°19°)	65°18°	0%	5 mph8 km/h from NW, gusts 13 mph21 km/h	50%	0%	4
Mon 3p	Sunny	66°19° (likely 65°18° to 67°19°)	66°19°	0%	5 mph8 km/h from NW, gusts 14 mph22 km/h	48%	0%	3
Mon 4p	Sunny	66°19° (likely 65°18° to 67°19°)	66°19°	0%	5 mph8 km/h from W, gusts 14 mph23 km/h	48%	1%	2
Mon 5p	Sunny	65°18° (likely 62°17° to 66°19°)	65°18°	0%	5 mph8 km/h from W, gusts 14 mph22 km/h	52%	0%	1
Mon 6p	Clear	62°17° (likely 57°14° to 62°17°)	62°17°	0%	5 mph8 km/h from W, gusts 9 mph15 km/h	58%	1%	0
Mon 7p	Clear	57°14° (likely 55°13° to 59°15°)	57°14°	0%	5 mph8 km/h from W, gusts 6 mph10 km/h	72%	1%	0

Days ahead

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

Today, Oct 24. Partly sunny. High 62°17°, low 35°2°. Typical 61°16° / 41°5°. Dry. Forecasts agree.
1. Evening
  6 PM–midnight
  Clear, 46°8°
  Dry
2. Overnight
  midnight–6 AM
  Clear, 36°2°
  Dry
Official NWS forecast
Tonight: Clear, with a low around 35. Southwest wind around 0 mph.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
61°16°–62°17°
Low, likely
34°1°–36°2°
Typical high / low
61°16° / 41°5°
Wind
5 mph8 km/h, gusts 11 mph18 km/h
UV peak
4
Tomorrow, Oct 25. Sunny. High 65°18°, low 40°4°. Typical 60°16° / 40°4°. Dry. Forecasts agree.
1. Morning
  6 AM–noon
  Sunny, 37°3°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 64°18°
  Dry
3. Evening
  6 PM–midnight
  Clear, 48°9°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 40°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 40. West wind 0 to 5 mph.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
63°17°–65°18°
Low, likely
37°3°–40°4°
Typical high / low
60°16° / 40°4°
Wind
6 mph9 km/h
UV peak
4
Monday, Oct 26. Sunny. High 66°19°, low 46°8°. Typical 60°16° / 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, 54°12°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 51°10°
  Dry
Official NWS forecast
Day: Sunny, with a high near 66. Northwest wind around 5 mph.
Night: Clear, with a low around 46. Northwest wind around 5 mph.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
65°18°–67°19°
Low, likely
38°3°–46°8°
Typical high / low
60°16° / 40°4°
Wind
9 mph14 km/h, gusts 19 mph30 km/h
UV peak
4
Tuesday, Oct 27. Mostly sunny. High 64°18°, low 41°5°. Typical 60°16° / 40°4°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 48°9°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 62°16°
  Dry
3. Evening
  6 PM–midnight
  Clear, 50°10°
  Dry
4. Overnight
  midnight–6 AM
  Mostly clear, 42°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 41.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
60°16°–64°18°
Low, likely
41°5°–48°9°
Typical high / low
60°16° / 40°4°
Wind
10 mph16 km/h, gusts 22 mph35 km/h
UV peak
4
Wednesday, Oct 28. Cloudy. High 62°17°, low 45°7°. Typical 59°15° / 39°4°. 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, 53°11°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 46°8°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly sunny, with a high near 62.
Night: Mostly cloudy, with a low around 45.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
59°15°–62°17°
Low, likely
38°3°–45°7°
Typical high / low
59°15° / 39°4°
Wind
6 mph10 km/h, gusts 15 mph24 km/h
UV peak
4
Thursday, Oct 29. Partly sunny. High 68°20°, low 48°9°. Typical 59°15° / 39°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, 50°10°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly sunny, with a high near 68.
Night: Mostly clear, with a low around 48.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
64°18°–68°20°
Low, likely
44°7°–48°9°
Typical high / low
59°15° / 39°4°
Wind
10 mph16 km/h, gusts 31 mph50 km/h
UV peak
4
Friday, Oct 30. Mostly sunny. High 71°22°, low 49°9°. Typical 59°15° / 39°4°. Dry. Forecasts agree.
1. Morning
  6 AM–noon
  Sunny, 50°10°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 72°22°
  Dry
3. Evening
  6 PM–midnight
  Clear, 58°15°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 49°9°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Sunny, with a high near 71.
Night: Mostly clear, with a low around 49.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
71°22°–73°23°
Low, likely
45°7°–53°12°
Typical high / low
59°15° / 39°4°
Wind
8 mph13 km/h, gusts 19 mph30 km/h
UV peak
4
Saturday, Oct 31. Partly sunny. High 69°21°, low 48°9°. Typical 58°14° / 38°3°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Mostly sunny, 47°9°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 68°20°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 58°14°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 52°11°
  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
62°17°–71°22°
Low, likely
45°7°–50°10°
Typical high / low
58°14° / 38°3°
Wind
9 mph14 km/h, gusts 19 mph30 km/h
UV peak
3
Sunday, Nov 1. Cloudy. High 69°21°, low 51°11°. Typical 58°14° / 38°3°. Rain 0.01 in0.3 mm, 30% chance. Mostly agree.
1. Morning
  6 AM–noon
  Cloudy, 52°11°
  Dry
2. Afternoon
  noon–6 PM
  Partly sunny, 68°20°
  20% chance
3. Evening
  6 PM–midnight
  Drizzle, 62°17°
  30% chance · 0.04 in0.9 mm
4. Overnight
  midnight–6 AM
  Drizzle, 61°16°
  30% chance · 0.12 in3.1 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
66°19°–72°22°
Low, likely
46°8°–55°13°
Typical high / low
58°14° / 38°3°
Wind
11 mph18 km/h, gusts 29 mph47 km/h
UV peak
3
Monday, Nov 2. Drizzle. High 70°21°, low 59°15°. Typical 58°14° / 38°3°. Rain 0.21 in5.3 mm, 30% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Drizzle, 62°17°
  30% chance · 0.09 in2.3 mm
2. Afternoon
  noon–6 PM
  Drizzle, 71°21°
  20% chance · 0.01 in0.3 mm
3. Evening
  6 PM–midnight
  Cloudy, 64°18°
  30% 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
67°19°–77°25°
Low, likely
56°13°–66°19°
Typical high / low
58°14° / 38°3°
Wind
16 mph26 km/h, gusts 40 mph64 km/h
UV peak
3

10 days15 days30 days

The outlook

Today
Dry, high 62°, low 35°.
Tomorrow
Dry, high 65°, low 40°, warming up.
Monday
Dry, high 66°, low 46°.
Rest of week
Mostly dry, highs 62–71°.

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

Brandywine Creek at Chadds Ford

13 mi

Below flood stage

Level: 1.9 ft
Flow: 203 cfs

Forecast peak 1.9 ft Sat 8 PM

Reading from Sat 6:30 PM · NWS gauge page

Schuylkill River at Pottstown

18 mi

Below flood stage

Level: 2.1 ft
Flow: 893 cfs

Forecast peak 2.0 ft Sat 8 PM

Reading from Sat 6:15 PM · NWS gauge page

Brandywine Creek at Wilmington

19 mi

Below flood stage

Level: 18.6 ft
Flow: 221 cfs

Forecast peak 18.6 ft Sat 8 PM

Reading from Sat 6:30 PM · NWS gauge page

West Branch Brandywine Creek at Coatesville

2.5 mi

Below flood stage

Level: 3.6 ft
Flow: 18 cfs

Reading from Sat 6:45 PM · NWS gauge page

For your home

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

Heating this week

About 71% less heating than a typical week.

This week 31Typical 107

Heating degree days, base 65°F

Heat-pump hours, next 7 days

h below 47°F: 26
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 38°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?

Avondale 2 N · official normals 1991–2020 · records 2006–2026

Oct 24, today vs a typical year

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

Last 7 days vs normal

On average 1°0° colder than normal (daily mean temperature).

−6°−4°MonOct 19
−1°TueOct 20
+5°+3°WedOct 21
+1°±0°ThuOct 22
+5°+3°FriOct 23
−5°−3°SatOct 24
—SunOct 25

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

Sun & moon

Sun

Daylight: 10 h 47 min; Losing 2 min 30 s a day; shortest Dec 21, 1 h 28 min less
Golden hour: 5:33–6:27 PM; Morning 7:06–8:00 AM
Blue hour: 6:27–6:38 PM; Morning 6:55–7:06 AM; first light 6:55 AM

Stars tonight? Fair

Clear 8:35 PM–6:56 AM, but the moon is 99% lit and up.

Moon

Waxing gibbous

98% lit · growing

Today: sets 5:35 AM · rises 5:07 PM
Full moon: Oct 26
New moon: Nov 9

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

Caln, PA weather

Next 2 hours

Next 48 hours

Days ahead

The outlook

Today

Tomorrow

Monday

Rest of week

What changed since yesterday

Radar

Rivers

Brandywine Creek at Chadds Ford

Schuylkill River at Pottstown

Brandywine Creek at Wilmington

West Branch Brandywine Creek at Coatesville

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