Perkiomen Creek at Graterford
9.3 mi- Level
- 1.1 ft
- Flow
- 99 cfs
Forecast peak 1.1 ft Fri 8 AM
Reading from Fri 6:15 AM · NWS gauge page
Appearance
Starts in 16 h 41 min
Issued for this forecast zone · National Weather Service Mount Holly NJ
What
Sub-freezing temperatures as low as 30 possible.
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 6:35 AM EDT at KCKZ
Clear and 46°8°.
Today: low 32°0° (likely 32°0° to 45°7°), high 60°16° (likely 58°14° to 60°16°).
Now 46°8°
Clear
No precipitation expected in the next 2 hours.
From forecast models
| Hour | Conditions | Temperature | Feels like | Precipitation | Wind | Humidity | Cloud cover | UV index |
|---|---|---|---|---|---|---|---|---|
| Fri 7a | Sunny | 41°5° (likely 41°5° to 45°7°) | 37°3° | 0% | 5 mph8 km/h from N, gusts 11 mph18 km/h | 82% | 0% | 0 |
| Fri 8a | Sunny | 40°4° (likely 40°4° to 46°8°) | 35°2° | 0% | 5 mph8 km/h from N, gusts 12 mph19 km/h | 85% | 0% | 0 |
| Fri 9a | Sunny | 44°7° (likely 44°7° to 50°10°) | 39°4° | 0% | 10 mph16 km/h from N, gusts 19 mph31 km/h | 70% | 0% | 0 |
| Fri 10a | Sunny | 51°11° (likely 51°11° to 52°11°) | 51°11° | 0% | 10 mph16 km/h from NE, gusts 22 mph35 km/h | 54% | 0% | 1 |
| Fri 11a | Sunny | 53°12° (likely 53°12° to 55°13°) | 53°12° | 0% | 10 mph16 km/h from NE, gusts 20 mph32 km/h | 48% | 0% | 2 |
| Fri 12p | Sunny | 57°14° (likely 56°13° to 57°14°) | 57°14° | 0% | 10 mph16 km/h from NE, gusts 18 mph29 km/h | 40% | 0% | 3 |
| Fri 1p | Sunny | 58°14° (likely 57°14° to 58°14°) | 58°14° | 0% | 10 mph16 km/h from NE, gusts 15 mph24 km/h | 37% | 0% | 3 |
| Fri 2p | Sunny | 59°15° (likely 58°14° to 59°15°) | 59°15° | 0% | 10 mph16 km/h from NE, gusts 14 mph22 km/h | 34% | 0% | 3 |
| Fri 3p | Sunny | 60°16° (likely 58°14° to 60°16°) | 60°16° | 0% | 5 mph8 km/h from NE, gusts 12 mph19 km/h | 33% | 0% | 2 |
| Fri 4p | Sunny | 60°16° (likely 58°14° to 60°16°) | 60°16° | 0% | 5 mph8 km/h from NE, gusts 10 mph17 km/h | 33% | 0% | 1 |
| Fri 5p | Sunny | 59°15° (likely 57°14° to 59°15°) | 59°15° | 0% | 5 mph8 km/h from NE, gusts 9 mph14 km/h | 36% | 0% | 0 |
| Fri 6p | Clear | 56°13° (likely 53°12° to 56°13°) | 56°13° | 0% | 5 mph8 km/h from NE, gusts 7 mph11 km/h | 38% | 43% | 0 |
| Fri 7p | Mostly clear | 50°10° (likely 50°10° to 51°11°) | 47°8° | 0% | 5 mph8 km/h from NE, gusts 6 mph9 km/h | 44% | 37% | 0 |
| Fri 8p | Partly cloudy | 46°8° (likely 46°8° to 49°9°) | 42°6° | 0% | 5 mph8 km/h from NE, gusts 6 mph9 km/h | 49% | 45% | 0 |
| Fri 9p | Partly cloudy | 43°6° (likely 43°6° to 47°8°) | 39°4° | 0% | 5 mph8 km/h from NE, gusts 5 mph8 km/h | 53% | 50% | 0 |
| Fri 10p | Partly cloudy | 40°4° (likely 40°4° to 46°8°) | 36°2° | 0% | 5 mph8 km/h from NE, gusts 6 mph10 km/h | 57% | 71% | 0 |
| Fri 11p | Partly cloudy | 39°4° (likely 39°4° to 46°8°) | 36°2° | 0% | 5 mph8 km/h from NE, gusts 5 mph9 km/h | 57% | 70% | 0 |
| Sat 12a | Partly cloudy | 38°3° (likely 38°3° to 44°7°) | 34°1° | 0% | 5 mph8 km/h from NE, gusts 4 mph6 km/h | 59% | 50% | 0 |
| Sat 1a | Mostly clear | 36°2° (likely 36°2° to 42°6°) | 32°0° | 0% | 5 mph8 km/h from NE, gusts 2 mph3 km/h | 64% | 28% | 0 |
| Sat 2a | Clear | 36°2° (likely 36°2° to 41°5°) | 32°0° | 0% | 5 mph8 km/h from NE, gusts 2 mph3 km/h | 64% | 31% | 0 |
| Sat 3a | Clear | 34°1° (likely 34°1° to 40°4°) | 30°−1° | 0% | 5 mph8 km/h from NE, gusts 2 mph4 km/h | 72% | 35% | 0 |
| Sat 4a | Partly cloudy | 34°1° (likely 34°1° to 39°4°) | 30°−1° | 0% | 5 mph8 km/h from N, gusts 3 mph5 km/h | 72% | 40% | 0 |
| Sat 5a | Partly cloudy | 34°1° (likely 34°1° to 39°4°) | 30°−1° | 0% | 5 mph8 km/h from N, gusts 4 mph7 km/h | 75% | 56% | 0 |
| Sat 6a | Partly cloudy | 33°1° (likely 33°1° to 38°3°) | 30°−1° | 0% | 5 mph8 km/h from N, gusts 5 mph7 km/h | 78% | 57% | 0 |
| Sat 7a | Cloudy | 34°1° (likely 34°1° to 38°3°) | 31°−1° | 0% | 5 mph8 km/h from N, gusts 5 mph8 km/h | 75% | 65% | 0 |
| Sat 8a | Cloudy | 35°2° (likely 33°1° to 39°4°) | 31°−1° | 0% | 5 mph8 km/h from N, gusts 5 mph8 km/h | 75% | 79% | 0 |
| Sat 9a | Partly sunny | 40°4° (likely 39°4° to 43°6°) | 37°3° | 0% | 5 mph8 km/h from NE, gusts 6 mph9 km/h | 64% | 70% | 1 |
| Sat 10a | Partly sunny | 49°9° (likely 48°9° to 50°10°) | 47°8° | 0% | 5 mph8 km/h from NE, gusts 4 mph6 km/h | 50% | 66% | 2 |
| Sat 11a | Mostly sunny | 54°12° (likely 53°12° to 55°13°) | 54°12° | 0% | 5 mph8 km/h from NE, gusts 4 mph6 km/h | 45% | 56% | 3 |
| Sat 12p | Mostly sunny | 57°14° (likely 55°13° to 58°14°) | 57°14° | 0% | 0 mph0 km/h, gusts 4 mph6 km/h | 40% | 61% | 3 |
| Sat 1p | Sunny | 59°15° (likely 57°14° to 60°16°) | 59°15° | 0% | 0 mph0 km/h, gusts 4 mph6 km/h | 36% | 44% | 4 |
| Sat 2p | Mostly sunny | 60°16° (likely 58°14° to 61°16°) | 60°16° | 0% | 5 mph8 km/h from S, gusts 3 mph6 km/h | 35% | 42% | 4 |
| Sat 3p | Sunny | 61°16° (likely 58°14° to 61°16°) | 61°16° | 0% | 5 mph8 km/h from SW, gusts 3 mph5 km/h | 33% | 32% | 3 |
| Sat 4p | Sunny | 61°16° (likely 58°14° to 61°16°) | 61°16° | 0% | 5 mph8 km/h from SW, gusts 3 mph4 km/h | 33% | 40% | 2 |
| Sat 5p | Sunny | 60°16° (likely 57°14° to 60°16°) | 60°16° | 0% | 5 mph8 km/h from SW, gusts 3 mph5 km/h | 36% | 41% | 1 |
| Sat 6p | Mostly clear | 57°14° (likely 54°12° to 57°14°) | 57°14° | 0% | 5 mph8 km/h from SW, gusts 3 mph5 km/h | 38% | 43% | 0 |
| Sat 7p | Mostly clear | 52°11° (likely 51°11° to 52°11°) | 52°11° | 0% | 5 mph8 km/h from SW, gusts 1 mph2 km/h | 44% | 39% | 0 |
| Sat 8p | Mostly clear | 46°8° (likely 46°8° to 50°10°) | 43°6° | 0% | 5 mph8 km/h from SW, gusts 4 mph6 km/h | 55% | 18% | 0 |
| Sat 9p | Clear | 43°6° (likely 43°6° to 48°9°) | 39°4° | 0% | 5 mph8 km/h from SW, gusts 3 mph5 km/h | 60% | 1% | 0 |
| Sat 10p | Clear | 41°5° (likely 41°5° to 47°8°) | 38°3° | 0% | 5 mph8 km/h from SW, gusts 3 mph5 km/h | 65% | 0% | 0 |
| Sat 11p | Clear | 40°4° (likely 40°4° to 46°8°) | 37°3° | 0% | 5 mph8 km/h from SW, gusts 3 mph5 km/h | 70% | 0% | 0 |
| Sun 12a | Clear | 39°4° (likely 39°4° to 44°7°) | 37°3° | 0% | 5 mph8 km/h from W, gusts 3 mph4 km/h | 73% | 0% | 0 |
| Sun 1a | Clear | 37°3° (likely 37°3° to 43°6°) | 34°1° | 0% | 5 mph8 km/h from W, gusts 3 mph5 km/h | 82% | 0% | 0 |
| Sun 2a | Clear | 36°2° (likely 36°2° to 42°6°) | 32°0° | 0% | 5 mph8 km/h from NW, gusts 3 mph5 km/h | 89% | 0% | 0 |
| Sun 3a | Clear | 35°2° (likely 33°1° to 41°5°) | 31°−1° | 0% | 5 mph8 km/h from NW, gusts 3 mph5 km/h | 92% | 0% | 0 |
| Sun 4a | Clear | 34°1° (likely 33°1° to 41°5°) | 29°−2° | 0% | 5 mph8 km/h from NW, gusts 3 mph6 km/h | 100% | 0% | 0 |
| Sun 5a | Clear | 33°1° (likely 32°0° to 40°4°) | 28°−2° | 0% | 5 mph8 km/h from NW, gusts 3 mph6 km/h | 100% | 0% | 0 |
| Sun 6a | Clear | 32°0° (likely 31°−1° to 40°4°) | 26°−3° | 0% | 5 mph8 km/h from NW, gusts 3 mph6 km/h | 100% | 0% | 0 |
Morning
6 AM–noon
Dry
Afternoon
noon–6 PM
Dry
Evening
6 PM–midnight
Dry
Overnight
midnight–6 AM
Dry
Official NWS forecast
Today: Sunny, with a high near 60. Northeast wind 5 to 10 mph, with gusts as high as 25 mph.
Tonight: Areas of frost after 11pm. Partly cloudy, with a low around 32. Northeast wind around 5 mph.
Forecasts agreeIndependent forecasts are close; the range is narrow.
Morning
6 AM–noon
Dry
Afternoon
noon–6 PM
Dry
Evening
6 PM–midnight
Dry
Overnight
midnight–6 AM
Dry
Official NWS forecast
Day: Areas of frost before 9am. Sunny, with a high near 61. Northeast wind 0 to 5 mph.
Night: Widespread frost after 11pm. Mostly clear, with a low around 32. West wind around 5 mph.
Forecasts agreeIndependent forecasts are close; the range is narrow.
Morning
6 AM–noon
Dry
Afternoon
noon–6 PM
Dry
Evening
6 PM–midnight
Dry
Overnight
midnight–6 AM
Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Widespread frost before 9am. Sunny, with a high near 65. West wind around 5 mph.
Night: Mostly clear, with a low around 35.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
Morning
6 AM–noon
Dry
Afternoon
noon–6 PM
Dry
Evening
6 PM–midnight
Dry
Overnight
midnight–6 AM
Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Sunny, with a high near 68.
Night: Mostly clear, with a low around 45.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
Morning
6 AM–noon
Dry
Afternoon
noon–6 PM
Dry
Evening
6 PM–midnight
Dry
Overnight
midnight–6 AM
Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Sunny, with a high near 63.
Night: Mostly clear, with a low around 38.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
Morning
6 AM–noon
Dry
Afternoon
noon–6 PM
Dry
Evening
6 PM–midnight
Dry
Overnight
midnight–6 AM
Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly sunny, with a high near 60.
Night: Mostly cloudy, with a low around 41.
Forecasts agreeIndependent forecasts are close; the range is narrow.
Morning
6 AM–noon
Dry
Afternoon
noon–6 PM
Dry
Evening
6 PM–midnight
Dry
Overnight
midnight–6 AM
Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly sunny, with a high near 65.
Night: Partly cloudy, with a low around 43.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
Morning
6 AM–noon
Dry
Afternoon
noon–6 PM
Dry
Evening
6 PM–midnight
Dry
Overnight
midnight–6 AM
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.
Morning
6 AM–noon
Dry
Afternoon
noon–6 PM
Dry
Evening
6 PM–midnight
Dry
Overnight
midnight–6 AM
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.
Morning
6 AM–noon
Dry
Afternoon
noon–6 PM
20% chance · 0.07 in1.8 mm
Evening
6 PM–midnight
30% chance · 0.03 in0.8 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.
Dry, high 60°, low 32°.
Dry, high 61°, low 32°.
Dry, high 65°, low 35°, warming up.
Mostly dry, highs 60–68°.
Want the meteorologists’ reasoning? Read the NWS forecast discussion (PHI) (opens in a new tab)
No meaningful changes from yesterday’s forecast.
Forecast peak 1.1 ft Fri 8 AM
Reading from Fri 6:15 AM · NWS gauge page
Forecast peak 8.1 ft Fri 8 AM
Reading from Fri 6:30 AM · NWS gauge page
Forecast peak 2.1 ft Fri 8 AM
Reading from Fri 6:15 AM · NWS gauge page
Forecast peak 0.7 ft Fri 8 AM
Reading from Fri 6 AM · NWS gauge page
What this week’s weather means for heating, cooling, pipes and fresh air.
About 56% less heating than a typical week.
Heating degree days, base 65°F
47, 17 and 5°F are the test points heat pumps are rated at. About 7 hours are near freezing and damp, when outdoor units defrost more often.
Dry air outside (dew point 39°F).
Today, 3:00 PM–4:00 PM
Good stretch to open the windows.
Today’s expected high is 6°3° colder than typical.
On average 1°0° colder than normal (daily mean temperature).
Telford weather by month: normals, records, snow and freeze dates
Sunrise 7:20 AM, sunset 6:09 PM.
Clouds most of the night (about 47% cover).
Waxing gibbous
91% lit · growing