Observed 8:55 AM EDT at KPHL

Folsom, PA weather

Mostly sunny and 54°12°.

Forecasts agree

Now 54°12°

Mostly sunny

Wind: 10 mph16 km/hgusts 20 mph32 km/h; From the northeast. 58–10 mph16 km/h through 9 PM
Dew point: 36°2°; Comfortable
UV index: 0Low; Moderate 12–3 PM · peak 3
Air quality: 48Good; Main pollutant: PM2.5 (fine particles)
Pressure: 30.33 inHg1027 hPa; Rising · +0.08 inHg+2.6 hPa in 3 h

No precipitation expected in the next 2 hours.

From forecast models

Next 48 hours

3°2° warmer than this time yesterday (48°9° then, 51°11° now)

Good hours for

High 62°17° today at 3 PM
Below 50°10° tonight after 9 PM
Low 38°3° tomorrow at 6 AM
Above 50°10° tomorrow by 10 AM

This morningUp to 55°13° by 11 AM · Clear
This afternoonUp to 62°17° by 3 PM · Clear
TonightDown to 39°4° by 4 AM · Partly cloudy
Tomorrow morningUp to 56°13° by 11 AM · Partly cloudy
Tomorrow afternoonUp to 63°17° by 3 PM · Clear
Tomorrow nightDown to 38°3° by 5 AM · Clear
Sunday morningNear 38°3° · 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 9a	Sunny	50°10° (likely 50°10° to 53°12°)	46°8°	0%	10 mph16 km/h from NE, gusts 20 mph32 km/h	58%	0%	0
Fri 10a	Sunny	53°12° (likely 53°12° to 55°13°)	53°12°	0%	10 mph16 km/h from NE, gusts 22 mph35 km/h	52%	0%	1
Fri 11a	Sunny	55°13° (likely 55°13° to 57°14°)	55°13°	0%	10 mph16 km/h from NE, gusts 19 mph31 km/h	49%	1%	2
Fri 12p	Sunny	58°14° (likely 57°14° to 59°15°)	58°14°	0%	10 mph16 km/h from NE, gusts 16 mph26 km/h	42%	1%	3
Fri 1p	Sunny	60°16° (likely 59°15° to 60°16°)	60°16°	0%	10 mph16 km/h from NE, gusts 15 mph23 km/h	37%	1%	3
Fri 2p	Sunny	61°16° (likely 60°16° to 61°16°)	61°16°	0%	10 mph16 km/h from NE, gusts 13 mph21 km/h	35%	0%	3
Fri 3p	Sunny	62°17° (likely 60°16° to 62°17°)	62°17°	0%	10 mph16 km/h from NE, gusts 12 mph20 km/h	32%	0%	2
Fri 4p	Sunny	62°17° (likely 60°16° to 62°17°)	62°17°	0%	10 mph16 km/h from NE, gusts 12 mph19 km/h	32%	0%	1
Fri 5p	Sunny	61°16° (likely 59°15° to 61°16°)	61°16°	0%	10 mph16 km/h from NE, gusts 11 mph18 km/h	33%	0%	0
Fri 6p	Clear	60°16° (likely 56°13° to 60°16°)	60°16°	0%	5 mph8 km/h from NE, gusts 11 mph18 km/h	33%	0%	0
Fri 7p	Mostly clear	54°12° (likely 53°12° to 54°12°)	54°12°	0%	5 mph8 km/h from NE, gusts 9 mph14 km/h	41%	13%	0
Fri 8p	Mostly clear	50°10° (likely 50°10° to 52°11°)	48°9°	0%	5 mph8 km/h from NE, gusts 8 mph13 km/h	50%	18%	0
Fri 9p	Mostly clear	48°9° (likely 48°9° to 50°10°)	46°8°	0%	5 mph8 km/h from NE, gusts 8 mph12 km/h	54%	34%	0
Fri 10p	Partly cloudy	45°7° (likely 45°7° to 48°9°)	43°6°	0%	5 mph8 km/h from NE, gusts 6 mph10 km/h	60%	50%	0
Fri 11p	Partly cloudy	44°7° (likely 44°7° to 47°8°)	41°5°	0%	5 mph8 km/h from NE, gusts 3 mph6 km/h	62%	60%	0
Sat 12a	Mostly clear	43°6° (likely 43°6° to 47°8°)	41°5°	0%	5 mph8 km/h from NE, gusts 3 mph5 km/h	65%	61%	0
Sat 1a	Mostly clear	42°6° (likely 42°6° to 46°8°)	40°4°	0%	5 mph8 km/h from NE, gusts 3 mph5 km/h	67%	42%	0
Sat 2a	Clear	42°6° (likely 42°6° to 45°7°)	39°4°	0%	5 mph8 km/h from NE, gusts 3 mph5 km/h	67%	27%	0
Sat 3a	Clear	40°4° (likely 40°4° to 44°7°)	37°3°	0%	5 mph8 km/h from NE, gusts 4 mph6 km/h	70%	29%	0
Sat 4a	Partly cloudy	39°4° (likely 39°4° to 43°6°)	36°2°	0%	5 mph8 km/h from NE, gusts 4 mph7 km/h	73%	25%	0
Sat 5a	Partly cloudy	39°4° (likely 39°4° to 42°6°)	36°2°	0%	5 mph8 km/h from N, gusts 6 mph9 km/h	76%	44%	0
Sat 6a	Mostly clear	38°3° (likely 37°3° to 41°5°)	34°1°	0%	5 mph8 km/h from N, gusts 6 mph10 km/h	79%	52%	0
Sat 7a	Cloudy	38°3° (likely 37°3° to 41°5°)	34°1°	0%	5 mph8 km/h from N, gusts 7 mph11 km/h	79%	58%	0
Sat 8a	Mostly sunny	40°4° (likely 38°3° to 41°5°)	36°2°	0%	5 mph8 km/h from N, gusts 7 mph11 km/h	73%	53%	0
Sat 9a	Cloudy	45°7° (likely 43°6° to 47°8°)	42°6°	0%	5 mph8 km/h from N, gusts 7 mph11 km/h	62%	63%	1
Sat 10a	Partly sunny	52°11° (likely 49°9° to 53°12°)	52°11°	0%	5 mph8 km/h from NE, gusts 6 mph9 km/h	48%	40%	2
Sat 11a	Partly sunny	56°13° (likely 54°12° to 57°14°)	56°13°	0%	5 mph8 km/h from NE, gusts 6 mph9 km/h	43%	33%	3
Sat 12p	Mostly sunny	58°14° (likely 57°14° to 60°16°)	58°14°	0%	5 mph8 km/h from NE, gusts 5 mph9 km/h	39%	16%	4
Sat 1p	Sunny	60°16° (likely 58°14° to 61°16°)	60°16°	0%	0 mph0 km/h, gusts 4 mph7 km/h	36%	17%	4
Sat 2p	Sunny	62°17° (likely 60°16° to 62°17°)	62°17°	0%	5 mph8 km/h from S, gusts 4 mph6 km/h	33%	1%	4
Sat 3p	Sunny	63°17° (likely 60°16° to 63°17°)	63°17°	0%	5 mph8 km/h from S, gusts 4 mph6 km/h	31%	1%	3
Sat 4p	Mostly sunny	63°17° (likely 60°16° to 63°17°)	63°17°	0%	5 mph8 km/h from SW, gusts 4 mph6 km/h	31%	9%	2
Sat 5p	Sunny	63°17° (likely 59°15° to 63°17°)	63°17°	0%	5 mph8 km/h from SW, gusts 4 mph6 km/h	31%	40%	1
Sat 6p	Clear	60°16° (likely 56°13° to 60°16°)	60°16°	0%	5 mph8 km/h from SW, gusts 3 mph5 km/h	35%	31%	0
Sat 7p	Clear	57°14° (likely 53°12° to 57°14°)	57°14°	0%	5 mph8 km/h from SW, gusts 2 mph3 km/h	40%	35%	0
Sat 8p	Mostly clear	53°12° (likely 51°11° to 53°12°)	53°12°	0%	5 mph8 km/h from SW, gusts 3 mph4 km/h	48%	51%	0
Sat 9p	Partly cloudy	48°9° (likely 48°9° to 52°11°)	46°8°	0%	5 mph8 km/h from S, gusts 3 mph5 km/h	58%	34%	0
Sat 10p	Clear	46°8° (likely 46°8° to 50°10°)	44°7°	0%	5 mph8 km/h from SW, gusts 3 mph6 km/h	65%	1%	0
Sat 11p	Clear	45°7° (likely 45°7° to 48°9°)	44°7°	0%	5 mph8 km/h from SW, gusts 4 mph7 km/h	68%	0%	0
Sun 12a	Clear	44°7° (likely 43°6° to 47°8°)	44°7°	0%	0 mph0 km/h, gusts 4 mph7 km/h	73%	0%	0
Sun 1a	Clear	42°6° (likely 42°6° to 47°8°)	42°6°	0%	0 mph0 km/h, gusts 4 mph7 km/h	82%	0%	0
Sun 2a	Clear	41°5° (likely 40°4° to 47°8°)	39°4°	0%	5 mph8 km/h from W, gusts 4 mph6 km/h	85%	0%	0
Sun 3a	Clear	40°4° (likely 37°3° to 50°10°)	38°3°	0%	5 mph8 km/h from NW, gusts 4 mph6 km/h	89%	0%	0
Sun 4a	Clear	39°4° (likely 37°3° to 49°9°)	36°2°	0%	5 mph8 km/h from NW, gusts 4 mph6 km/h	92%	0%	0
Sun 5a	Clear	38°3° (likely 36°2° to 48°9°)	34°1°	0%	5 mph8 km/h from NW, gusts 4 mph6 km/h	100%	0%	0
Sun 6a	Clear	37°3° (likely 35°2° to 48°9°)	33°1°	0%	5 mph8 km/h from NW, gusts 4 mph7 km/h	100%	0%	0
Sun 7a	Sunny	37°3° (likely 35°2° to 48°9°)	33°1°	0%	5 mph8 km/h from NW, gusts 5 mph7 km/h	100%	0%	0
Sun 8a	Sunny	39°4° (likely 35°2° to 48°9°)	36°2°	0%	5 mph8 km/h from NW, gusts 5 mph8 km/h	96%	0%	0

Days ahead

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

Today, Oct 23. Mostly sunny. High 62°17°, low 37°3°. Typical 64°18° / 46°8°. Dry. Forecasts agree.
1. Morning
  6 AM–noon
  Sunny, 55°13°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 62°17°
  Dry
3. Evening
  6 PM–midnight
  Mostly clear, 50°10°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 39°4°
  Dry
Official NWS forecast
Today: Sunny, with a high near 62. Northeast wind around 10 mph, with gusts as high as 25 mph.
Tonight: Patchy frost after 4am. Mostly clear, with a low around 37. Northeast wind around 5 mph.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
60°16°–62°17°
Low, likely
37°3°–47°8°
Typical high / low
64°18° / 46°8°
Wind
12 mph19 km/h, gusts 26 mph41 km/h
UV peak
4
Tomorrow, Oct 24. Cloudy. High 63°17°, low 37°3°. Typical 64°18° / 46°8°. Dry. Forecasts agree.
1. Morning
  6 AM–noon
  Cloudy, 40°4°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 63°17°
  Dry
3. Evening
  6 PM–midnight
  Partly cloudy, 53°12°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 38°3°
  Dry
Official NWS forecast
Day: Patchy frost before 8am. Sunny, with a high near 63. East wind 0 to 5 mph.
Night: Patchy frost after 3am. Mostly clear, with a low around 37. West wind 0 to 5 mph.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
60°16°–63°17°
Low, likely
37°3°–41°5°
Typical high / low
64°18° / 46°8°
Wind
6 mph9 km/h
UV peak
4
Sunday, Oct 25. Sunny. High 66°19°, low 39°4°. Typical 64°18° / 46°8°. Dry. Forecasts agree.
1. Morning
  6 AM–noon
  Sunny, 39°4°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 64°18°
  Dry
3. Evening
  6 PM–midnight
  Clear, 54°12°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 45°7°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Areas of frost before 9am. Sunny, with a high near 66. West wind around 5 mph.
Night: Mostly clear, with a low around 39.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
64°18°–66°19°
Low, likely
36°2°–44°7°
Typical high / low
64°18° / 46°8°
Wind
5 mph8 km/h
UV peak
4
Monday, Oct 26. Mostly sunny. High 70°21°, low 49°9°. Typical 63°17° / 45°7°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 45°7°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 68°20°
  Dry
3. Evening
  6 PM–midnight
  Clear, 57°14°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 53°12°
  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 49.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
67°19°–70°21°
Low, likely
40°4°–49°9°
Typical high / low
63°17° / 45°7°
Wind
7 mph11 km/h, gusts 15 mph24 km/h
UV peak
4
Tuesday, Oct 27. Mostly sunny. High 65°18°, low 43°6°. Typical 63°17° / 45°7°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 53°12°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 66°19°
  Dry
3. Evening
  6 PM–midnight
  Clear, 57°14°
  Dry
4. Overnight
  midnight–6 AM
  Mostly clear, 46°8°
  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 43.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
64°18°–68°20°
Low, likely
43°6°–53°12°
Typical high / low
63°17° / 45°7°
Wind
9 mph14 km/h, gusts 22 mph36 km/h
UV peak
4
Wednesday, Oct 28. Cloudy. High 62°17°, low 45°7°. Typical 63°17° / 45°7°. Dry. Forecasts agree.
1. Morning
  6 AM–noon
  Cloudy, 46°8°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 63°17°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 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: Mostly sunny, with a high near 62.
Night: Mostly cloudy, with a low around 45.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
62°17°–64°18°
Low, likely
41°5°–50°10°
Typical high / low
63°17° / 45°7°
Wind
7 mph11 km/h, gusts 14 mph23 km/h
UV peak
2
Thursday, Oct 29. Cloudy. High 67°19°, low 48°9°. Typical 62°17° / 44°7°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Partly sunny, 48°9°
  Dry
2. Afternoon
  noon–6 PM
  Mostly sunny, 67°19°
  Dry
3. Evening
  6 PM–midnight
  Clear, 57°14°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 51°10°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly sunny, with a high near 67.
Night: Partly cloudy, with a low around 48.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
65°18°–70°21°
Low, likely
42°6°–51°11°
Typical high / low
62°17° / 44°7°
Wind
11 mph18 km/h, gusts 29 mph47 km/h
UV peak
4
Friday, Oct 30. Cloudy. High 69°21°, low 51°11°. Typical 62°17° / 44°7°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Partly sunny, 51°10°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 69°20°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 59°15°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 51°10°
  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
47°8°–53°12°
Typical high / low
62°17° / 44°7°
Wind
8 mph13 km/h, gusts 19 mph30 km/h
UV peak
4
Saturday, Oct 31. Cloudy. High 62°17°, low 48°9°. Typical 62°17° / 44°7°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Sunny, 49°9°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 60°15°
  Dry
3. Evening
  6 PM–midnight
  Clear, 52°11°
  Dry
4. Overnight
  midnight–6 AM
  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
57°14°–67°19°
Low, likely
40°4°–56°13°
Typical high / low
62°17° / 44°7°
Wind
10 mph16 km/h, gusts 22 mph36 km/h
UV peak
2
Sunday, Nov 1. Showers. High 62°17°, low 50°10°. Typical 61°16° / 43°6°. Rain 0.53 in13 mm, 20% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Sunny, 44°7°
  Dry
2. Afternoon
  noon–6 PM
  Rain, 59°15°
  20% chance · 0.17 in4.3 mm
3. Evening
  6 PM–midnight
  Rain, 53°12°
  30% chance · 0.3 in7.7 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°–66°19°
Low, likely
40°4°–59°15°
Typical high / low
61°16° / 43°6°
Wind
11 mph17 km/h, gusts 27 mph44 km/h

10 days15 days30 days

The outlook

Today
Dry, high 62°, low 37°.
Tomorrow
Dry, high 63°, low 37°.
Sunday
Dry, high 66°, low 39°, warming up.
Rest of week
Mostly dry, highs 62–70°.

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 near Philadelphia near 30th Street

9.0 mi

Below flood stage

Level: 0.6 ft

Forecast peak 5.1 ft Sat 12 AM, action stage

Reading from Fri 7:45 AM · NWS gauge page

Schuylkill River at Philadelphia

9.1 mi

Below flood stage

Level: 6.0 ft
Flow: 1,000 cfs

Forecast peak 6.1 ft Fri 2 PM

Reading from Fri 7 AM · NWS gauge page

Delaware River at USCG Station Washington Street (IN MLLW)

10 mi

Below flood stage

Level: 3.2 ft

Forecast peak 8.1 ft Sat 1 PM

Reading from Fri 8 AM · NWS gauge page

Brandywine Creek at Chadds Ford

14 mi

Below flood stage

Level: 1.9 ft
Flow: 214 cfs

Forecast peak 1.9 ft Fri 2 PM

Reading from Fri 7:30 AM · NWS gauge page

For your home

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

Heating this week

About 59% less heating than a typical week.

This week 31Typical 75

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 8 hours are near freezing and damp, when outdoor units defrost more often.

Comfort

Dry air outside (dew point 36°F).

Open the windows?

Today, 1:00 PM–6:00 PM

Good stretch to open the windows.

Is this typical?

Philadelphia International Airport · official normals 1991–2020 · records 1873–2026

Oct 23, today vs a typical year

Today’s expected high is 2°1° colder than typical.

Last 7 days vs normal

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

−4°−2°SatOct 17
−6°−3°SunOct 18
−2°−1°MonOct 19
+3°+1°TueOct 20
+2°+1°WedOct 21
+2°+1°ThuOct 22
—FriOct 23

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

Sun & moon

Sun

Daylight: 10 h 50 min; Losing 2 min 30 s a day; shortest Dec 21, 1 h 30 min less
Golden hour: 5:33–6:27 PM; Morning 7:03–7:57 AM
Blue hour: 6:27–6:37 PM; Morning 6:52–7:03 AM; first light 6:52 AM

Stars tonight? Fair

Mostly clear 6:37–9 PM, but the moon is 95% lit and up.

Moon

Waxing gibbous

92% lit · growing

Today: sets 4:24 AM · rises 4:41 PM
Full moon: Oct 26
New moon: Nov 9

Looking west from Folsom. The highest point on the skyline is about 5,100 ft, 50 mi away.Skyline from USGS elevation data, heights drawn up to 6× taller. Sky, sun and moon as they are now.

Folsom, PA weather

Next 2 hours

Next 48 hours

Days ahead

The outlook

Today

Tomorrow

Sunday

Rest of week

What changed since yesterday

Radar

Rivers

Schuylkill River near Philadelphia near 30th Street

Schuylkill River at Philadelphia

Delaware River at USCG Station Washington Street (IN MLLW)

Brandywine Creek at Chadds Ford

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? Fair

Moon