Freeze Warning
Starts in 4 h 54 min
When
From midnight tonight to 9 AM EDT Saturday.
Where
In New Jersey, Morris, Somerset, and Hunterdon Counties. In Pennsylvania, Berks, Lehigh, Upper Bucks, Western Chester, and Western Montgomery Counties.
Issued for this forecast zone · National Weather Service Mount Holly NJ
What, impacts and precautionsHide details
What
Sub-freezing temperatures as low as 30 degrees expected.
Impacts
Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing.
Precautionary actions
Take steps now to protect tender plants from the cold.
Areas: Morris; Hunterdon; Somerset; Berks; Lehigh; Western Chester; Western Montgomery; Upper Bucks
See it on weather.gov (opens in a new tab)

Observed 6:00 PM EDT at KRDG

Kempton, PA weather

Freeze Warning. 57°14° and sunny now.

Forecasts agree

Now 57°14°

Sunny

Wind: 5 mph7 km/h; From the east. Light through 7 AM
Dew point: 27°−3°; Dry, static shocks likely
UV tomorrow: 4Moderate; Moderate 11 AM–4 PM · peak 4
Air quality: 33Good; Main pollutant: Ozone
Pressure: 30.37 inHg1028 hPa; Rising slowly · +0.04 inHg+1.4 hPa in 3 h

No precipitation expected in the next 2 hours.

From forecast models

Next 48 hours

Good hours for

Low 32°0° tomorrow at 6 AM
Above 50°10° tomorrow by 11 AM
High 62°17° tomorrow at 3 PM
Drops 12°7° tomorrow night 6–9 PM (58°14° → 46°8°)
Below 50°10° tomorrow night after 8 PM

TonightDown to 34°1° by 3 AM · Partly cloudy
Tomorrow morningUp to 53°12° by 11 AM · freezing, low 32°0° · Partly cloudy
Tomorrow afternoonUp to 62°17° by 3 PM · Clear
Tomorrow nightDown to 34°1° by 4 AM · Clear
Sunday morningUp to 55°13° by 11 AM · Clear
Sunday afternoonUp to 65°18° 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
Fri 7p	Partly cloudy	52°11° (likely 50°10° to 52°11°)	52°11°	0%	5 mph8 km/h from E, gusts 6 mph10 km/h	44%	66%	0
Fri 8p	Partly cloudy	47°8° (likely 47°8° to 50°10°)	47°8°	0%	0 mph0 km/h, gusts 4 mph6 km/h	58%	54%	0
Fri 9p	Cloudy	44°7° (likely 44°7° to 49°9°)	44°7°	0%	0 mph0 km/h, gusts 2 mph4 km/h	62%	71%	0
Fri 10p	Partly cloudy	41°5° (likely 41°5° to 48°9°)	41°5°	0%	0 mph0 km/h, gusts 2 mph4 km/h	70%	64%	0
Fri 11p	Partly cloudy	40°4° (likely 40°4° to 47°8°)	40°4°	0%	0 mph0 km/h, gusts 3 mph5 km/h	73%	39%	0
Sat 12a	Partly cloudy	38°3° (likely 38°3° to 45°7°)	38°3°	0%	0 mph0 km/h, gusts 3 mph5 km/h	76%	48%	0
Sat 1a	Clear	37°3° (likely 37°3° to 44°7°)	37°3°	0%	0 mph0 km/h, gusts 3 mph5 km/h	79%	9%	0
Sat 2a	Clear	36°2° (likely 36°2° to 43°6°)	36°2°	0%	0 mph0 km/h, gusts 3 mph4 km/h	82%	3%	0
Sat 3a	Clear	34°1° (likely 34°1° to 42°6°)	34°1°	0%	0 mph0 km/h, gusts 3 mph4 km/h	89%	11%	0
Sat 4a	Partly cloudy	34°1° (likely 34°1° to 41°5°)	34°1°	0%	0 mph0 km/h, gusts 3 mph4 km/h	89%	57%	0
Sat 5a	Clear	34°1° (likely 34°1° to 40°4°)	34°1°	0%	0 mph0 km/h, gusts 3 mph5 km/h	89%	39%	0
Sat 6a	Clear	32°0° (likely 32°0° to 39°4°)	32°0°	0%	0 mph0 km/h, gusts 3 mph5 km/h	96%	40%	0
Sat 7a	Cloudy	33°1° (likely 33°1° to 38°3°)	33°1°	0%	0 mph0 km/h, gusts 3 mph4 km/h	92%	72%	0
Sat 8a	Mostly sunny	34°1° (likely 34°1° to 39°4°)	34°1°	0%	0 mph0 km/h, gusts 2 mph4 km/h	82%	56%	0
Sat 9a	Sunny	40°4° (likely 40°4° to 43°6°)	40°4°	0%	0 mph0 km/h, gusts 3 mph5 km/h	73%	47%	1
Sat 10a	Mostly sunny	49°9° (likely 48°9° to 50°10°)	49°9°	0%	0 mph0 km/h, gusts 3 mph5 km/h	56%	40%	2
Sat 11a	Sunny	53°12° (likely 53°12° to 55°13°)	53°12°	0%	0 mph0 km/h, gusts 2 mph4 km/h	50%	9%	3
Sat 12p	Sunny	57°14° (likely 55°13° to 58°14°)	57°14°	0%	0 mph0 km/h, gusts 3 mph4 km/h	47%	40%	4
Sat 1p	Sunny	60°16° (likely 57°14° to 60°16°)	60°16°	0%	0 mph0 km/h, gusts 4 mph6 km/h	41%	25%	4
Sat 2p	Sunny	61°16° (likely 59°15° to 61°16°)	61°16°	0%	0 mph0 km/h, gusts 4 mph7 km/h	39%	1%	4
Sat 3p	Sunny	62°17° (likely 59°15° to 62°17°)	62°17°	0%	0 mph0 km/h, gusts 4 mph7 km/h	39%	0%	3
Sat 4p	Sunny	62°17° (likely 59°15° to 62°17°)	62°17°	0%	0 mph0 km/h, gusts 4 mph7 km/h	39%	0%	2
Sat 5p	Sunny	61°16° (likely 57°14° to 61°16°)	61°16°	0%	0 mph0 km/h, gusts 4 mph6 km/h	39%	0%	1
Sat 6p	Clear	58°14° (likely 53°12° to 58°14°)	58°14°	0%	0 mph0 km/h, gusts 5 mph7 km/h	44%	0%	0
Sat 7p	Clear	54°12° (likely 50°10° to 54°12°)	54°12°	0%	0 mph0 km/h, gusts 5 mph8 km/h	50%	0%	0
Sat 8p	Clear	46°8° (likely 46°8° to 50°10°)	46°8°	0%	0 mph0 km/h, gusts 4 mph7 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 mph4 km/h	70%	0%	0
Sat 10p	Clear	42°6° (likely 42°6° to 48°9°)	42°6°	0%	0 mph0 km/h, gusts 2 mph3 km/h	76%	0%	0
Sat 11p	Clear	41°5° (likely 41°5° to 47°8°)	41°5°	0%	0 mph0 km/h, gusts 2 mph3 km/h	79%	0%	0
Sun 12a	Clear	39°4° (likely 39°4° to 45°7°)	39°4°	0%	0 mph0 km/h, gusts 2 mph3 km/h	85%	0%	0
Sun 1a	Clear	38°3° (likely 38°3° to 44°7°)	38°3°	0%	0 mph0 km/h, gusts 2 mph3 km/h	89%	0%	0
Sun 2a	Clear	36°2° (likely 36°2° to 43°6°)	36°2°	0%	0 mph0 km/h, gusts 2 mph4 km/h	96%	0%	0
Sun 3a	Clear	35°2° (likely 35°2° to 42°6°)	35°2°	0%	0 mph0 km/h, gusts 2 mph3 km/h	100%	0%	0
Sun 4a	Clear	34°1° (likely 34°1° to 42°6°)	34°1°	0%	0 mph0 km/h, gusts 2 mph4 km/h	100%	0%	0
Sun 5a	Clear	34°1° (likely 34°1° to 41°5°)	34°1°	0%	0 mph0 km/h, gusts 2 mph4 km/h	100%	0%	0
Sun 6a	Clear	33°1° (likely 33°1° to 40°4°)	33°1°	0%	0 mph0 km/h, gusts 2 mph4 km/h	100%	0%	0
Sun 7a	Sunny	33°1° (likely 33°1° to 40°4°)	33°1°	0%	0 mph0 km/h, gusts 3 mph4 km/h	100%	0%	0
Sun 8a	Sunny	35°2° (likely 35°2° to 40°4°)	35°2°	0%	0 mph0 km/h, gusts 2 mph4 km/h	100%	0%	0
Sun 9a	Sunny	41°5° (likely 41°5° to 43°6°)	41°5°	0%	0 mph0 km/h, gusts 2 mph4 km/h	89%	0%	1
Sun 10a	Sunny	48°9° (likely 48°9° to 51°11°)	48°9°	0%	0 mph0 km/h, gusts 5 mph7 km/h	74%	0%	2
Sun 11a	Sunny	55°13° (likely 54°12° to 57°14°)	55°13°	0%	0 mph0 km/h, gusts 5 mph8 km/h	61%	2%	3
Sun 12p	Sunny	59°15° (likely 57°14° to 61°16°)	59°15°	0%	0 mph0 km/h, gusts 7 mph12 km/h	51%	2%	4
Sun 1p	Sunny	62°17° (likely 59°15° to 62°17°)	62°17°	0%	0 mph0 km/h, gusts 8 mph13 km/h	46%	1%	4
Sun 2p	Sunny	63°17° (likely 60°16° to 63°17°)	63°17°	0%	0 mph0 km/h, gusts 9 mph14 km/h	44%	1%	4
Sun 3p	Sunny	65°18° (likely 61°16° to 65°18°)	65°18°	0%	0 mph0 km/h, gusts 9 mph14 km/h	43%	0%	3
Sun 4p	Sunny	65°18° (likely 61°16° to 65°18°)	65°18°	0%	0 mph0 km/h, gusts 9 mph14 km/h	45%	0%	2
Sun 5p	Sunny	63°17° (likely 59°15° to 63°17°)	63°17°	0%	0 mph0 km/h, gusts 9 mph14 km/h	48%	0%	1
Sun 6p	Clear	59°15° (likely 52°11° to 59°15°)	59°15°	0%	0 mph0 km/h, gusts 5 mph9 km/h	55%	0%	0

Days ahead

Tap a day for its hours and the official wording.

Today, Oct 23. Cloudy. High 61°16°, low 32°0°. Dry. Forecasts agree.
1. Evening
  6 PM–midnight
  Cloudy, 47°8°
  Dry
2. Overnight
  midnight–6 AM
  Clear, 34°1°
  Dry
Official NWS forecast
Tonight: Areas of frost after midnight. Partly cloudy, with a low around 32. East wind 0 to 5 mph.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
59°15°–62°17°
Low, likely
32°0°–44°7°
Wind
11 mph17 km/h, gusts 21 mph34 km/h
UV peak
4
Tomorrow, Oct 24. Cloudy. High 62°17°, low 33°1°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 34°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, 34°1°
  Dry
Official NWS forecast
Day: Areas of frost before 10am. Sunny, with a high near 62. Southeast wind around 0 mph.
Night: Areas of frost after 10pm. Clear, with a low around 33. Southwest wind around 0 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
59°15°–62°17°
Low, likely
33°1°–38°3°
Wind
6 mph10 km/h
UV peak
4
Sunday, Oct 25. Sunny. High 65°18°, low 37°3°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 35°2°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 65°18°
  Dry
3. Evening
  6 PM–midnight
  Clear, 49°9°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 40°5°
  Dry
Official NWS forecast
Day: Areas of frost before 9am. Sunny, with a high near 65. West wind around 0 mph.
Night: Clear, with a low around 37. Northwest wind around 0 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
61°16°–65°18°
Low, likely
35°2°–40°4°
Wind
7 mph10 km/h
UV peak
4
Monday, Oct 26. Sunny. High 69°21°, low 44°7°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 40°4°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 68°20°
  Dry
3. Evening
  6 PM–midnight
  Clear, 54°12°
  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 69.
Night: Mostly clear, with a low around 44.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
67°19°–70°21°
Low, likely
37°3°–44°7°
Wind
8 mph13 km/h, gusts 16 mph26 km/h
UV peak
4
Tuesday, Oct 27. Mostly sunny. High 65°18°, low 39°4°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 46°8°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 62°17°
  Dry
3. Evening
  6 PM–midnight
  Clear, 49°10°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 40°5°
  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 39.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
60°16°–65°18°
Low, likely
39°4°–46°8°
Wind
9 mph14 km/h, gusts 19 mph31 km/h
UV peak
4
Wednesday, Oct 28. Cloudy. High 61°16°, low 44°7°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Mostly sunny, 40°4°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 58°14°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 51°10°
  Dry
4. Overnight
  midnight–6 AM
  Partly cloudy, 45°7°
  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 44.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
56°13°–61°16°
Low, likely
38°3°–44°7°
Wind
6 mph9 km/h, gusts 14 mph23 km/h
UV peak
4
Thursday, Oct 29. Partly sunny. High 68°20°, low 47°8°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 45°7°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 64°18°
  Dry
3. Evening
  6 PM–midnight
  Clear, 54°12°
  Dry
4. Overnight
  midnight–6 AM
  Mostly clear, 47°8°
  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
62°17°–68°20°
Low, likely
41°5°–47°8°
Wind
10 mph15 km/h, gusts 28 mph44 km/h
UV peak
4
Friday, Oct 30. Partly sunny. High 69°21°, low 45°7°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 45°7°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 66°19°
  Dry
3. Evening
  6 PM–midnight
  Clear, 53°12°
  Dry
4. Overnight
  midnight–6 AM
  Mostly clear, 45°7°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly sunny, with a high near 69.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
64°18°–71°22°
Low, likely
42°6°–48°9°
Wind
7 mph11 km/h, gusts 18 mph28 km/h
UV peak
4
Saturday, Oct 31. Cloudy. High 66°19°, low 45°7°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Partly sunny, 45°7°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 65°18°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 54°12°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 48°9°
  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
64°18°–69°21°
Low, likely
41°5°–48°9°
Wind
5 mph8 km/h, gusts 13 mph20 km/h
UV peak
3
Sunday, Nov 1. Cloudy. High 63°17°, low 47°8°. Rain 0.02 in0.5 mm, 30% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Fog, 47°8°
  20% chance
2. Afternoon
  noon–6 PM
  Drizzle, 61°16°
  30% chance · 0.01 in0.3 mm
3. Evening
  6 PM–midnight
  Fog, 56°14°
  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
57°14°–67°19°
Low, likely
45°7°–50°10°
Wind
7 mph11 km/h, gusts 27 mph44 km/h

10 days15 days30 days

The outlook

Today
Dry, high 61°, low 32°.
Tomorrow
Dry, high 62°, low 33°.
Sunday
Dry, high 65°, low 37°, 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

Schuylkill River at Berne

11 mi

Below flood stage

Level: 5.1 ft
Flow: 276 cfs

Forecast peak 5.1 ft Fri 8 PM

Reading from Fri 6 PM · NWS gauge page

Lehigh River at Walnutport

16 mi

Below flood stage

Level: 2.5 ft
Flow: 761 cfs

Forecast peak 2.5 ft Fri 8 PM

Reading from Fri 5:30 PM · NWS gauge page

Lehigh River at Lehighton

16 mi

Below flood stage

Level: 3.0 ft
Flow: 601 cfs

Forecast peak 3.0 ft Fri 8 PM

Reading from Fri 5:30 PM · NWS gauge page

Jordan Creek at Allentown

20 mi

Below flood stage

Level: 1.7 ft
Flow: 38 cfs

Forecast peak 1.7 ft Fri 8 PM

Reading from Fri 6:30 PM · NWS gauge page

Sun & moon

Sun

Daylight: 10 h 48 min; Losing 2 min 30 s a day; shortest Dec 21, 1 h 32 min less
Golden hour: 5:33–6:28 PM; Morning 7:06–8:01 AM
Blue hour: 6:28–6:39 PM; Morning 6:55–7:06 AM; first light 6:55 AM

Stars tonight? Fair

Mostly clear 1–4 AM, but the moon is 95% lit and up.

Moon

Waxing gibbous

94% lit · growing

Today: sets 4:26 AM · rises 4:43 PM
Full moon: Oct 26
New moon: Nov 9

Looking northwest from Kempton. The highest point on the skyline is about 1,600 ft, 3 mi away.Skyline from USGS elevation data, heights drawn up to 6× taller. Sky, sun and moon as they are now.

1 active weather alert

Freeze Warning

Kempton, 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 at Berne

Lehigh River at Walnutport

Lehigh River at Lehighton

Jordan Creek at Allentown

Sun & moon

Sun

Stars tonight? Fair

Moon