Frankstown Branch Juniata River at Williamsburg
23 mi- Level
- 3.2 ft
- Flow
- 225 cfs
Forecast peak 3.0 ft Fri 8 AM
Reading from Fri 6:30 AM · NWS gauge page
Appearance
Observed 6:55 AM EDT at KJST
Clear and 43°6°.
Today: low 32°0° (likely 32°0° to 42°6°), high 58°14° (likely 56°13° to 58°14°).
Now 43°6°
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 | Clear | 41°5° (likely 37°3° to 42°6°) | 41°5° | 0% | 0 mph0 km/h, gusts 3 mph5 km/h | 92% | 5% | 0 |
| Fri 8a | Sunny | 42°6° (likely 37°3° to 42°6°) | 42°6° | 0% | 1 mph2 km/h from E, gusts 2 mph4 km/h | 88% | 11% | 0 |
| Fri 9a | Sunny | 43°6° (likely 41°5° to 45°7°) | 42°6° | 0% | 3 mph5 km/h from NE, gusts 2 mph4 km/h | 85% | 14% | 0 |
| Fri 10a | Sunny | 46°8° (likely 46°8° to 50°10°) | 45°7° | 0% | 5 mph8 km/h from NE, gusts 9 mph14 km/h | 76% | 13% | 1 |
| Fri 11a | Sunny | 50°10° (likely 50°10° to 53°12°) | 48°9° | 0% | 5 mph8 km/h from E, gusts 10 mph16 km/h | 68% | 11% | 2 |
| Fri 12p | Sunny | 52°11° (likely 52°11° to 55°13°) | 52°11° | 0% | 5 mph8 km/h from E, gusts 10 mph15 km/h | 60% | 11% | 3 |
| Fri 1p | Sunny | 55°13° (likely 55°13° to 56°13°) | 55°13° | 0% | 5 mph8 km/h from E, gusts 9 mph14 km/h | 53% | 9% | 4 |
| Fri 2p | Sunny | 57°14° (likely 56°13° to 57°14°) | 57°14° | 0% | 3 mph5 km/h from E, gusts 9 mph14 km/h | 47% | 8% | 3 |
| Fri 3p | Sunny | 57°14° (likely 56°13° to 58°14°) | 57°14° | 0% | 3 mph5 km/h from E, gusts 8 mph13 km/h | 45% | 6% | 3 |
| Fri 4p | Sunny | 57°14° (likely 56°13° to 58°14°) | 57°14° | 0% | 5 mph8 km/h from E, gusts 8 mph13 km/h | 45% | 8% | 2 |
| Fri 5p | Sunny | 56°13° (likely 55°13° to 57°14°) | 56°13° | 0% | 3 mph5 km/h from E, gusts 8 mph13 km/h | 43% | 13% | 1 |
| Fri 6p | Clear | 52°11° (likely 51°11° to 55°13°) | 52°11° | 0% | 3 mph5 km/h from E, gusts 9 mph15 km/h | 50% | 30% | 0 |
| Fri 7p | Mostly clear | 48°9° (likely 47°8° to 50°10°) | 48°9° | 0% | 2 mph3 km/h from E, gusts 8 mph13 km/h | 60% | 26% | 0 |
| Fri 8p | Mostly clear | 45°7° (likely 44°7° to 47°8°) | 45°7° | 0% | 2 mph3 km/h from E, gusts 8 mph12 km/h | 68% | 36% | 0 |
| Fri 9p | Mostly clear | 42°6° (likely 42°6° to 45°7°) | 42°6° | 0% | 2 mph3 km/h from E, gusts 7 mph11 km/h | 73% | 44% | 0 |
| Fri 10p | Mostly clear | 40°4° (likely 40°4° to 44°7°) | 38°3° | 0% | 3 mph5 km/h from SE, gusts 5 mph9 km/h | 82% | 46% | 0 |
| Fri 11p | Clear | 39°4° (likely 39°4° to 43°6°) | 37°3° | 0% | 3 mph5 km/h from SE, gusts 5 mph8 km/h | 85% | 41% | 0 |
| Sat 12a | Clear | 38°3° (likely 38°3° to 42°6°) | 36°2° | 0% | 3 mph5 km/h from SE, gusts 5 mph8 km/h | 85% | 4% | 0 |
| Sat 1a | Clear | 37°3° (likely 37°3° to 41°5°) | 34°1° | 0% | 3 mph5 km/h from SE, gusts 6 mph10 km/h | 85% | 4% | 0 |
| Sat 2a | Clear | 36°2° (likely 36°2° to 41°5°) | 33°1° | 0% | 3 mph5 km/h from SE, gusts 6 mph10 km/h | 89% | 0% | 0 |
| Sat 3a | Clear | 36°2° (likely 36°2° to 40°4°) | 33°1° | 0% | 3 mph5 km/h from S, gusts 7 mph11 km/h | 89% | 1% | 0 |
| Sat 4a | Clear | 34°1° (likely 34°1° to 39°4°) | 31°−1° | 0% | 3 mph5 km/h from S, gusts 6 mph10 km/h | 96% | 0% | 0 |
| Sat 5a | Clear | 34°1° (likely 34°1° to 39°4°) | 31°−1° | 0% | 3 mph5 km/h from S, gusts 7 mph12 km/h | 92% | 0% | 0 |
| Sat 6a | Clear | 33°1° (likely 33°1° to 38°3°) | 30°−1° | 0% | 3 mph5 km/h from S, gusts 8 mph12 km/h | 96% | 0% | 0 |
| Sat 7a | Clear | 32°0° (likely 32°0° to 38°3°) | 27°−3° | 0% | 5 mph8 km/h from S, gusts 7 mph12 km/h | 96% | 0% | 0 |
| Sat 8a | Sunny | 34°1° (likely 34°1° to 38°3°) | 30°−1° | 0% | 5 mph8 km/h from S, gusts 8 mph12 km/h | 92% | 0% | 0 |
| Sat 9a | Sunny | 38°3° (likely 38°3° to 42°6°) | 34°1° | 0% | 6 mph10 km/h from S, gusts 10 mph15 km/h | 92% | 0% | 1 |
| Sat 10a | Sunny | 45°7° (likely 45°7° to 48°9°) | 42°6° | 0% | 6 mph10 km/h from SE, gusts 15 mph25 km/h | 73% | 0% | 1 |
| Sat 11a | Sunny | 50°10° (likely 48°9° to 52°11°) | 47°8° | 0% | 7 mph11 km/h from SE, gusts 16 mph26 km/h | 61% | 0% | 3 |
| Sat 12p | Sunny | 53°12° (likely 50°10° to 54°12°) | 53°12° | 0% | 7 mph11 km/h from SE, gusts 15 mph24 km/h | 52% | 1% | 3 |
| Sat 1p | Sunny | 55°13° (likely 52°11° to 56°13°) | 55°13° | 0% | 7 mph11 km/h from SE, gusts 14 mph23 km/h | 47% | 0% | 4 |
| Sat 2p | Sunny | 57°14° (likely 54°12° to 57°14°) | 57°14° | 0% | 7 mph11 km/h from SE, gusts 13 mph21 km/h | 43% | 0% | 4 |
| Sat 3p | Sunny | 57°14° (likely 54°12° to 58°14°) | 57°14° | 0% | 7 mph11 km/h from SE, gusts 12 mph20 km/h | 43% | 3% | 3 |
| Sat 4p | Sunny | 58°14° (likely 54°12° to 58°14°) | 58°14° | 0% | 7 mph11 km/h from SE, gusts 12 mph19 km/h | 40% | 3% | 3 |
| Sat 5p | Sunny | 56°13° (likely 53°12° to 56°13°) | 56°13° | 0% | 6 mph10 km/h from SE, gusts 12 mph19 km/h | 43% | 0% | 1 |
| Sat 6p | Clear | 53°12° (likely 50°10° to 53°12°) | 53°12° | 0% | 5 mph8 km/h from SE, gusts 11 mph18 km/h | 48% | 0% | 0 |
| Sat 7p | Clear | 49°9° (likely 45°7° to 49°9°) | 47°8° | 0% | 5 mph8 km/h from SE, gusts 8 mph13 km/h | 56% | 0% | 0 |
| Sat 8p | Clear | 43°6° (likely 43°6° to 46°8°) | 40°4° | 0% | 5 mph8 km/h from SE, gusts 8 mph12 km/h | 67% | 0% | 0 |
| Sat 9p | Clear | 42°6° (likely 41°5° to 43°6°) | 39°4° | 0% | 5 mph8 km/h from SE, gusts 8 mph12 km/h | 70% | 0% | 0 |
| Sat 10p | Clear | 41°5° (likely 40°4° to 42°6°) | 38°3° | 0% | 5 mph8 km/h from SE, gusts 8 mph13 km/h | 73% | 0% | 0 |
| Sat 11p | Clear | 39°4° (likely 39°4° to 41°5°) | 36°2° | 0% | 5 mph8 km/h from SE, gusts 9 mph14 km/h | 79% | 0% | 0 |
| Sun 12a | Clear | 38°3° (likely 38°3° to 40°4°) | 34°1° | 0% | 5 mph8 km/h from SE, gusts 8 mph13 km/h | 82% | 0% | 0 |
| Sun 1a | Clear | 38°3° (likely 38°3° to 39°4°) | 34°1° | 0% | 5 mph8 km/h from SE, gusts 7 mph12 km/h | 79% | 0% | 0 |
| Sun 2a | Clear | 37°3° (likely 37°3° to 39°4°) | 33°1° | 0% | 5 mph8 km/h from SE, gusts 7 mph12 km/h | 82% | 0% | 0 |
| Sun 3a | Clear | 36°2° (likely 36°2° to 41°5°) | 32°0° | 0% | 5 mph8 km/h from SE, gusts 6 mph9 km/h | 85% | 0% | 0 |
| Sun 4a | Clear | 35°2° (likely 35°2° to 41°5°) | 31°−1° | 0% | 5 mph8 km/h from SE, gusts 5 mph9 km/h | 89% | 0% | 0 |
| Sun 5a | Clear | 35°2° (likely 35°2° to 40°4°) | 31°−1° | 0% | 5 mph8 km/h from SE, gusts 5 mph8 km/h | 89% | 0% | 0 |
| Sun 6a | Clear | 33°1° (likely 33°1° to 39°4°) | 29°−2° | 0% | 5 mph8 km/h from SE, gusts 5 mph8 km/h | 96% | 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 58. East wind 0 to 5 mph.
Tonight: Widespread frost after midnight. Mostly clear, with a low around 32. Southeast wind around 3 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: Widespread frost before 9am. Sunny, with a high near 58. Southeast wind 3 to 7 mph.
Night: Areas of frost after midnight. Clear, with a low around 32. Southeast wind around 5 mph.
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: Areas of frost before 9am. Sunny, with a high near 62. Southeast 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 65.
Night: Mostly clear, with a low around 40.
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: Partly cloudy, 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: Partly sunny, with a high near 59.
Night: Mostly cloudy, with a low around 40.
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 64.
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
30% chance · 0.04 in1 mm
Afternoon
noon–6 PM
30% chance · 0.04 in0.9 mm
Evening
6 PM–midnight
40% 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.
Dry, high 58°, low 32°.
Dry, high 58°, low 32°.
Dry, high 62°, low 35°, warming up.
Mostly dry, highs 54–65°.
Want the meteorologists’ reasoning? Read the NWS forecast discussion (CTP) (opens in a new tab)
No meaningful changes from yesterday’s forecast.
Forecast peak 3.0 ft Fri 8 AM
Reading from Fri 6:30 AM · NWS gauge page
Forecast peak 2.6 ft Fri 8 AM
Reading from Fri 5:45 AM · NWS gauge page
Forecast peak 2.2 ft Fri 8 AM
Reading from Fri 6:15 AM · NWS gauge page
Reading from Fri 6:15 AM · NWS gauge page
What this week’s weather means for heating, cooling, pipes and fresh air.
About 71% 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 19 hours are near freezing and damp, when outdoor units defrost more often.
Dry air outside (dew point 39°F).
No stretch in the next few days is comfortable enough outside, by temperature, dew point and air quality.
Today’s expected high is about typical for the date.
Chest Springs weather by month: normals, records, snow and freeze dates
Sunrise 7:34 AM, sunset 6:22 PM.
Mostly clear 12–7:07 AM; moon 95% lit, sets 5:47 AM.
Waxing gibbous
91% lit · growing