Freeze Warning
Ends in 8 h 4 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 12:20 AM EDT at KPTW

Trumbauersville, PA weather

Freeze Warning. 37°3° and clear now.

Forecasts agree

Now 37°3°

Clear

Wind: Calm; Light through 12 PM
Dew point: 34°1°; Dry, static shocks likely
UV index: 0Low; Moderate 11 AM–4 PM · peak 4
Air quality: 32Good; PM2.5 (fine particles) · tomorrow moderate
Pressure: 30.49 inHg1033 hPa; Rising slowly · +0.02 inHg+0.8 hPa next 3 h

No precipitation expected in the next 2 hours.

From forecast models

Next 48 hours

20°11° cooler than this time yesterday (55°13° then, 36°2° now)

Good hours for

Below freezing today 6–8 AM (low 31°−1°)
Low 31°−1° today at 6 AM
Above 50°10° today by 11 AM
High 61°16° today at 3 PM
Below 50°10° tonight after 8 PM

TonightNear 35°2° · Clear
This morningUp to 54°12° by 11 AM · freezing, low 31°−1° · Partly cloudy
This afternoonUp to 61°16° by 3 PM · Clear
TonightDown to 34°1° by 4 AM · Clear
Tomorrow morningUp to 55°13° by 11 AM · Clear
Tomorrow afternoonUp to 64°18° by 3 PM · Clear
Tomorrow nightDown to 43°6° by 11 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 12a	Clear	36°2° (likely 36°2° to 44°7°)	36°2°	0%	0 mph0 km/h, gusts 4 mph6 km/h	85%	3%	0
Sat 1a	Clear	35°2° (likely 35°2° to 42°6°)	35°2°	0%	0 mph0 km/h, gusts 5 mph9 km/h	89%	0%	0
Sat 2a	Clear	34°1° (likely 34°1° to 40°4°)	34°1°	0%	0 mph0 km/h, gusts 6 mph10 km/h	92%	1%	0
Sat 3a	Clear	33°1° (likely 33°1° to 39°4°)	33°1°	0%	0 mph0 km/h, gusts 6 mph10 km/h	96%	6%	0
Sat 4a	Clear	33°1° (likely 33°1° to 38°3°)	33°1°	0%	0 mph0 km/h, gusts 6 mph10 km/h	96%	14%	0
Sat 5a	Partly cloudy	33°1° (likely 33°1° to 38°3°)	33°1°	0%	0 mph0 km/h, gusts 6 mph10 km/h	96%	37%	0
Sat 6a	Partly cloudy	31°−1° (likely 31°−1° to 37°3°)	31°−1°	0%	0 mph0 km/h, gusts 5 mph9 km/h	100%	58%	0
Sat 7a	Mostly sunny	32°0° (likely 32°0° to 37°3°)	32°0°	0%	0 mph0 km/h, gusts 5 mph8 km/h	100%	41%	0
Sat 8a	Mostly sunny	33°1° (likely 32°0° to 38°3°)	33°1°	0%	0 mph0 km/h, gusts 5 mph8 km/h	92%	25%	0
Sat 9a	Mostly sunny	40°4° (likely 38°3° to 43°6°)	40°4°	0%	0 mph0 km/h, gusts 5 mph8 km/h	76%	26%	1
Sat 10a	Mostly sunny	49°9° (likely 47°8° to 49°9°)	49°9°	0%	0 mph0 km/h, gusts 3 mph5 km/h	56%	22%	2
Sat 11a	Sunny	54°12° (likely 52°11° to 54°12°)	54°12°	0%	0 mph0 km/h, gusts 3 mph4 km/h	50%	30%	3
Sat 12p	Sunny	57°14° (likely 55°13° to 58°14°)	57°14°	0%	0 mph0 km/h, gusts 3 mph5 km/h	45%	9%	4
Sat 1p	Sunny	58°14° (likely 58°14° to 59°15°)	58°14°	0%	0 mph0 km/h, gusts 4 mph6 km/h	44%	4%	4
Sat 2p	Sunny	60°16° (likely 59°15° to 60°16°)	60°16°	0%	0 mph0 km/h, gusts 4 mph6 km/h	39%	0%	4
Sat 3p	Sunny	61°16° (likely 59°15° to 61°16°)	61°16°	0%	0 mph0 km/h, gusts 3 mph5 km/h	38%	0%	3
Sat 4p	Sunny	61°16° (likely 59°15° to 61°16°)	61°16°	0%	0 mph0 km/h, gusts 3 mph5 km/h	38%	0%	2
Sat 5p	Sunny	61°16° (likely 58°14° to 61°16°)	61°16°	0%	0 mph0 km/h, gusts 3 mph5 km/h	38%	0%	1
Sat 6p	Clear	57°14° (likely 54°12° to 57°14°)	57°14°	0%	0 mph0 km/h, gusts 3 mph6 km/h	45%	0%	0
Sat 7p	Clear	53°12° (likely 50°10° to 53°12°)	53°12°	0%	0 mph0 km/h, gusts 2 mph3 km/h	52%	0%	0
Sat 8p	Clear	49°9° (likely 48°9° to 49°9°)	49°9°	0%	0 mph0 km/h, gusts 3 mph4 km/h	58%	0%	0
Sat 9p	Clear	44°7° (likely 44°7° to 48°9°)	44°7°	0%	0 mph0 km/h, gusts 3 mph5 km/h	70%	0%	0
Sat 10p	Clear	42°6° (likely 42°6° to 47°8°)	42°6°	0%	0 mph0 km/h, gusts 4 mph6 km/h	76%	0%	0
Sat 11p	Clear	41°5° (likely 41°5° to 46°8°)	41°5°	0%	0 mph0 km/h, gusts 3 mph6 km/h	79%	0%	0
Sun 12a	Clear	39°4° (likely 39°4° to 44°7°)	39°4°	0%	0 mph0 km/h, gusts 4 mph6 km/h	85%	0%	0
Sun 1a	Clear	38°3° (likely 38°3° to 43°6°)	38°3°	0%	0 mph0 km/h, gusts 5 mph7 km/h	92%	0%	0
Sun 2a	Clear	36°2° (likely 36°2° to 42°6°)	36°2°	0%	0 mph0 km/h, gusts 4 mph7 km/h	96%	0%	0
Sun 3a	Clear	35°2° (likely 35°2° to 41°5°)	35°2°	0%	0 mph0 km/h, gusts 3 mph6 km/h	100%	0%	0
Sun 4a	Clear	34°1° (likely 34°1° to 40°4°)	34°1°	0%	0 mph0 km/h, gusts 3 mph4 km/h	100%	0%	0
Sun 5a	Clear	34°1° (likely 34°1° to 39°4°)	34°1°	0%	0 mph0 km/h, gusts 2 mph4 km/h	100%	0%	0
Sun 6a	Clear	33°1° (likely 33°1° to 38°3°)	33°1°	0%	0 mph0 km/h, gusts 2 mph4 km/h	100%	0%	0
Sun 7a	Sunny	33°1° (likely 33°1° to 37°3°)	33°1°	0%	0 mph0 km/h, gusts 3 mph5 km/h	100%	0%	0
Sun 8a	Sunny	35°2° (likely 35°2° to 38°3°)	35°2°	0%	0 mph0 km/h, gusts 4 mph6 km/h	100%	0%	0
Sun 9a	Sunny	41°5° (likely 39°4° to 43°6°)	41°5°	0%	0 mph0 km/h, gusts 3 mph5 km/h	89%	0%	1
Sun 10a	Sunny	49°9° (likely 49°9° to 51°11°)	49°9°	0%	0 mph0 km/h, gusts 5 mph7 km/h	68%	0%	2
Sun 11a	Sunny	55°13° (likely 55°13° to 57°14°)	55°13°	0%	0 mph0 km/h, gusts 7 mph12 km/h	57%	2%	3
Sun 12p	Sunny	59°15° (likely 58°14° to 60°16°)	59°15°	0%	0 mph0 km/h, gusts 7 mph12 km/h	47%	2%	4
Sun 1p	Sunny	61°16° (likely 60°16° to 62°17°)	61°16°	0%	0 mph0 km/h, gusts 8 mph12 km/h	42%	1%	4
Sun 2p	Sunny	62°17° (likely 61°16° to 64°18°)	62°17°	0%	0 mph0 km/h, gusts 8 mph12 km/h	41%	2%	4
Sun 3p	Sunny	64°18° (likely 61°16° to 64°18°)	64°18°	0%	0 mph0 km/h, gusts 8 mph13 km/h	38%	1%	3
Sun 4p	Sunny	64°18° (likely 61°16° to 64°18°)	64°18°	0%	0 mph0 km/h, gusts 7 mph12 km/h	40%	2%	2
Sun 5p	Sunny	62°17° (likely 60°16° to 62°17°)	62°17°	0%	0 mph0 km/h, gusts 7 mph11 km/h	44%	1%	1
Sun 6p	Clear	58°14° (likely 55°13° to 58°14°)	58°14°	0%	0 mph0 km/h, gusts 5 mph8 km/h	53%	0%	0
Sun 7p	Clear	53°12° (likely 51°11° to 53°12°)	53°12°	0%	0 mph0 km/h, gusts 4 mph7 km/h	64%	0%	0
Sun 8p	Clear	49°9° (likely 48°9° to 51°11°)	49°9°	0%	0 mph0 km/h, gusts 4 mph7 km/h	74%	0%	0
Sun 9p	Clear	45°7° (likely 44°7° to 49°9°)	45°7°	0%	0 mph0 km/h, gusts 2 mph4 km/h	86%	0%	0
Sun 10p	Clear	44°7° (likely 43°6° to 48°9°)	44°7°	0%	0 mph0 km/h, gusts 3 mph4 km/h	89%	0%	0
Sun 11p	Clear	43°6° (likely 41°5° to 46°8°)	43°6°	0%	0 mph0 km/h, gusts 3 mph5 km/h	93%	0%	0

Days ahead

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

Today, Oct 24. Partly sunny. High 61°16°, low 31°−1°. Typical 61°16° / 38°3°. Dry. Forecasts agree.
1. Morning
  6 AM–noon
  Mostly sunny, 33°1°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 61°16°
  Dry
3. Evening
  6 PM–midnight
  Clear, 49°9°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 34°1°
  Dry
Official NWS forecast
Today: Areas of frost before 10am. Sunny, with a high near 61. South wind around 0 mph.
Tonight: Areas of frost. Partly cloudy, with a low around 31. Northeast wind around 0 mph.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
59°15°–61°16°
Low, likely
31°−1°–37°3°
Typical high / low
61°16° / 38°3°
Wind
5 mph8 km/h
UV peak
4
Tomorrow, Oct 25. Sunny. High 64°18°, low 37°3°. Typical 61°16° / 38°3°. Dry. Mostly 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, 49°9°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 41°5°
  Dry
Official NWS forecast
Day: Areas of frost before 9am. Sunny, with a high near 64. Northwest wind around 0 mph.
Night: Mostly clear, with a low around 37. Northwest wind around 0 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
62°17°–64°18°
Low, likely
34°1°–37°3°
Typical high / low
61°16° / 38°3°
Wind
7 mph11 km/h
UV peak
4
Monday, Oct 26. Mostly sunny. High 67°19°, low 45°7°. Typical 60°16° / 37°3°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 40°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, 49°9°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Sunny, with a high near 67.
Night: Mostly clear, with a low around 45.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
65°18°–68°20°
Low, likely
37°3°–45°7°
Typical high / low
60°16° / 37°3°
Wind
8 mph12 km/h, gusts 16 mph26 km/h
UV peak
4
Tuesday, Oct 27. Mostly sunny. High 64°18°, low 40°4°. Typical 60°16° / 37°3°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 46°8°
  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, 38°3°
  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 40.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
59°15°–64°18°
Low, likely
40°4°–45°7°
Typical high / low
60°16° / 37°3°
Wind
10 mph16 km/h, gusts 24 mph38 km/h
UV peak
4
Wednesday, Oct 28. Partly sunny. High 61°16°, low 44°7°. Typical 60°16° / 37°3°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 37°3°
  Dry
2. Afternoon
  noon–6 PM
  Partly sunny, 58°14°
  Dry
3. Evening
  6 PM–midnight
  Partly cloudy, 49°9°
  Dry
4. Overnight
  midnight–6 AM
  Partly cloudy, 44°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 44.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
56°13°–61°16°
Low, likely
34°1°–44°7°
Typical high / low
60°16° / 37°3°
Wind
7 mph12 km/h, gusts 14 mph23 km/h
UV peak
4
Thursday, Oct 29. Partly sunny. High 66°19°, low 48°9°. Typical 59°15° / 36°2°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Partly sunny, 44°6°
  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, 48°9°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly sunny, with a high near 66.
Night: Partly cloudy, with a low around 48.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
61°16°–66°19°
Low, likely
40°4°–48°9°
Typical high / low
59°15° / 36°2°
Wind
10 mph16 km/h, gusts 29 mph47 km/h
UV peak
4
Friday, Oct 30. Sunny. High 68°20°, low 46°8°. Typical 59°15° / 36°2°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Sunny, 47°8°
  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, 45°7°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly sunny, with a high near 68.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
65°18°–71°22°
Low, likely
45°7°–48°9°
Typical high / low
59°15° / 36°2°
Wind
8 mph13 km/h, gusts 18 mph29 km/h
UV peak
4
Saturday, Oct 31. Cloudy. High 67°19°, low 45°7°. Typical 59°15° / 36°2°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 43°6°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 65°18°
  Dry
3. Evening
  6 PM–midnight
  Clear, 53°12°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 44°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.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
65°18°–71°22°
Low, likely
39°4°–50°10°
Typical high / low
59°15° / 36°2°
Wind
10 mph17 km/h, gusts 16 mph26 km/h
UV peak
4
Sunday, Nov 1. Cloudy. High 64°18°, low 46°8°. Typical 58°14° / 36°2°. Rain 0.01 in0.3 mm, 30% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Sunny, 44°7°
  20% chance
2. Afternoon
  noon–6 PM
  Cloudy, 63°17°
  30% chance
3. Evening
  6 PM–midnight
  Cloudy, 55°13°
  30% chance
4. Overnight
  midnight–6 AM
  Cloudy, 55°13°
  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
57°14°–69°21°
Low, likely
41°5°–54°12°
Typical high / low
58°14° / 36°2°
Wind
9 mph14 km/h, gusts 20 mph31 km/h
UV peak
3
Monday, Nov 2. Drizzle. High 62°17°, low 53°12°. Typical 58°14° / 35°2°. Rain 0.24 in6.1 mm, 30% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Drizzle, 54°12°
  20% chance · 0.03 in0.9 mm
2. Afternoon
  noon–6 PM
  Drizzle, 58°14°
  20% chance · 0.16 in4 mm
3. Evening
  6 PM–midnight
  Cloudy, 56°13°
  30% 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 differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
51°11°–68°20°
Low, likely
44°7°–58°14°
Typical high / low
58°14° / 35°2°
Wind
18 mph29 km/h, gusts 39 mph63 km/h

10 days15 days30 days

The outlook

Today
Dry, high 61°, low 31°.
Tomorrow
Dry, high 64°, low 37°, warming up.
Monday
Dry, high 67°, low 45°, warming up.
Rest of week
Mostly dry, highs 61–68°.

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

Perkiomen Creek at Graterford

13 mi

Below flood stage

Level: 1.1 ft
Flow: 97 cfs

Forecast peak 1.1 ft Sat 2 AM

Reading from Fri 11:15 PM · NWS gauge page

Lehigh River at Bethlehem

14 mi

Below flood stage

Level: 1.7 ft
Flow: 1,100 cfs

Forecast peak 1.7 ft Sat 2 AM

Reading from Fri 11:30 PM · NWS gauge page

Jordan Creek at Allentown

16 mi

Below flood stage

Level: 1.6 ft
Flow: 37 cfs

Forecast peak 1.7 ft Sat 2 AM

Reading from Sat 12:15 AM · NWS gauge page

Delaware River at Riegelsville

16 mi

Below flood stage

Level: 3.3 ft
Flow: 3,900 cfs

Forecast peak 3.3 ft Sat 2 AM

Reading from Fri 11:30 PM · NWS gauge page

For your home

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

Heating this week

About 68% less heating than a typical week.

This week 37Typical 116

Heating degree days, base 65°F

Heat-pump hours, next 7 days

h below 47°F: 25
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 18 hours are near freezing and damp, when outdoor units defrost more often.

Comfort

Dry air outside (dew point 34°F).

Open the windows?

Today, 2:00 PM–5:00 PM

Good stretch to open the windows.

Is this typical?

Sellersville · official normals 1991–2020 · records 1996–2026

Oct 24, today vs a typical year

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

Last 7 days vs normal

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

−7°−4°SunOct 18
−4°−2°MonOct 19
+1°TueOct 20
+5°+3°WedOct 21
+2°+1°ThuOct 22
+3°+1°FriOct 23
—SatOct 24

Trumbauersville 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: 5:30–6:25 PM; Morning 7:05–8:00 AM
Blue hour: 6:25–6:36 PM; Morning 6:54–7:05 AM; first light 6:54 AM

Stars tonight? Fair

Mostly clear 12:56–5 AM, but the moon is 96% lit and up.

Moon

Waxing gibbous

95% lit · growing

Today: sets 5:33 AM · rises 5:05 PM
Full moon: Oct 26
New moon: Nov 9

Looking northwest from Trumbauersville. The highest point on the skyline is about 1,600 ft, 28 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

Trumbauersville, PA weather

Next 2 hours

Next 48 hours

Days ahead

The outlook

Today

Tomorrow

Monday

Rest of week

What changed since yesterday

Radar

Rivers

Perkiomen Creek at Graterford

Lehigh River at Bethlehem

Jordan Creek at Allentown

Delaware River at Riegelsville

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