Swatara Creek near Hershey
5.6 mi- Level
- 1.9 ft
- Flow
- 341 cfs
Forecast peak 1.9 ft Fri 2 PM
Reading from Fri 8:45 AM · NWS gauge page
Appearance
Observed 9:56 AM EDT at KMDT
Mostly sunny and 54°12°.
Today: low 34°1° (likely 34°1° to 43°6°), high 62°17° (likely 59°15° to 62°17°).
Now 54°12°
Mostly sunny
No precipitation expected in the next 2 hours.
From forecast models
| Hour | Conditions | Temperature | Feels like | Precipitation | Wind | Humidity | Cloud cover | UV index |
|---|---|---|---|---|---|---|---|---|
| Fri 10a | Sunny | 52°11° (likely 52°11° to 53°12°) | 52°11° | 0% | 7 mph11 km/h from NE, gusts 11 mph17 km/h | 66% | 11% | 2 |
| Fri 11a | Sunny | 55°13° (likely 55°13° to 56°13°) | 55°13° | 0% | 7 mph11 km/h from NE, gusts 13 mph21 km/h | 55% | 8% | 3 |
| Fri 12p | Sunny | 57°14° (likely 57°14° to 58°14°) | 57°14° | 0% | 7 mph11 km/h from NE, gusts 11 mph17 km/h | 49% | 8% | 4 |
| Fri 1p | Sunny | 59°15° (likely 58°14° to 59°15°) | 59°15° | 0% | 6 mph10 km/h from NE, gusts 9 mph15 km/h | 44% | 6% | 4 |
| Fri 2p | Sunny | 61°16° (likely 59°15° to 61°16°) | 61°16° | 0% | 5 mph8 km/h from NE, gusts 9 mph15 km/h | 39% | 8% | 4 |
| Fri 3p | Sunny | 61°16° (likely 59°15° to 61°16°) | 61°16° | 0% | 5 mph8 km/h from NE, gusts 8 mph14 km/h | 38% | 10% | 3 |
| Fri 4p | Sunny | 61°16° (likely 59°15° to 61°16°) | 61°16° | 0% | 5 mph8 km/h from NE, gusts 8 mph12 km/h | 36% | 14% | 2 |
| Fri 5p | Sunny | 60°16° (likely 58°14° to 60°16°) | 60°16° | 0% | 5 mph8 km/h from E, gusts 8 mph13 km/h | 37% | 46% | 1 |
| Fri 6p | Clear | 56°13° (likely 54°12° to 57°14°) | 56°13° | 0% | 3 mph5 km/h from E, gusts 7 mph12 km/h | 43% | 20% | 0 |
| Fri 7p | Mostly clear | 52°11° (likely 51°11° to 52°11°) | 52°11° | 0% | 2 mph3 km/h from E, gusts 7 mph11 km/h | 52% | 58% | 0 |
| Fri 8p | Mostly clear | 49°9° (likely 48°9° to 50°10°) | 49°9° | 0% | 2 mph3 km/h from E, gusts 7 mph11 km/h | 61% | 68% | 0 |
| Fri 9p | Partly cloudy | 45°7° (likely 45°7° to 48°9°) | 45°7° | 0% | 1 mph2 km/h from E, gusts 6 mph9 km/h | 76% | 70% | 0 |
| Fri 10p | Mostly clear | 43°6° (likely 43°6° to 46°8°) | 43°6° | 0% | 1 mph2 km/h from E, gusts 4 mph7 km/h | 82% | 57% | 0 |
| Fri 11p | Clear | 41°5° (likely 41°5° to 45°7°) | 41°5° | 0% | 0 mph0 km/h, gusts 3 mph5 km/h | 85% | 40% | 0 |
| Sat 12a | Clear | 40°4° (likely 40°4° to 43°6°) | 40°4° | 0% | 0 mph0 km/h, gusts 4 mph7 km/h | 89% | 40% | 0 |
| Sat 1a | Clear | 39°4° (likely 39°4° to 42°6°) | 39°4° | 0% | 0 mph0 km/h, gusts 4 mph6 km/h | 92% | 38% | 0 |
| Sat 2a | Clear | 38°3° (likely 38°3° to 41°5°) | 38°3° | 0% | 0 mph0 km/h, gusts 4 mph6 km/h | 92% | 41% | 0 |
| Sat 3a | Clear | 37°3° (likely 37°3° to 41°5°) | 37°3° | 0% | 0 mph0 km/h, gusts 4 mph6 km/h | 96% | 41% | 0 |
| Sat 4a | Clear | 36°2° (likely 36°2° to 40°4°) | 36°2° | 0% | 0 mph0 km/h, gusts 4 mph6 km/h | 96% | 5% | 0 |
| Sat 5a | Clear | 36°2° (likely 35°2° to 40°4°) | 36°2° | 0% | 1 mph2 km/h from NE, gusts 4 mph6 km/h | 96% | 5% | 0 |
| Sat 6a | Mostly clear | 36°2° (likely 36°2° to 39°4°) | 36°2° | 0% | 0 mph0 km/h, gusts 4 mph6 km/h | 92% | 12% | 0 |
| Sat 7a | Sunny | 35°2° (likely 35°2° to 38°3°) | 35°2° | 0% | 0 mph0 km/h, gusts 4 mph7 km/h | 96% | 19% | 0 |
| Sat 8a | Sunny | 36°2° (likely 35°2° to 38°3°) | 36°2° | 0% | 0 mph0 km/h, gusts 4 mph7 km/h | 92% | 12% | 0 |
| Sat 9a | Sunny | 41°5° (likely 38°3° to 41°5°) | 41°5° | 0% | 0 mph0 km/h, gusts 4 mph7 km/h | 85% | 13% | 1 |
| Sat 10a | Sunny | 48°9° (likely 46°8° to 48°9°) | 48°9° | 0% | 0 mph0 km/h, gusts 4 mph7 km/h | 71% | 2% | 2 |
| Sat 11a | Sunny | 53°12° (likely 51°11° to 53°12°) | 53°12° | 0% | 0 mph0 km/h, gusts 6 mph10 km/h | 61% | 0% | 3 |
| Sat 12p | Sunny | 56°13° (likely 55°13° to 56°13°) | 56°13° | 0% | 1 mph2 km/h from SE, gusts 7 mph12 km/h | 55% | 1% | 4 |
| Sat 1p | Sunny | 58°14° (likely 56°13° to 58°14°) | 58°14° | 0% | 2 mph3 km/h from SE, gusts 7 mph12 km/h | 47% | 0% | 4 |
| Sat 2p | Sunny | 60°16° (likely 58°14° to 60°16°) | 60°16° | 0% | 2 mph3 km/h from SE, gusts 7 mph11 km/h | 44% | 1% | 4 |
| Sat 3p | Sunny | 61°16° (likely 58°14° to 61°16°) | 61°16° | 0% | 2 mph3 km/h from SE, gusts 6 mph10 km/h | 41% | 1% | 3 |
| Sat 4p | Sunny | 61°16° (likely 58°14° to 61°16°) | 61°16° | 0% | 2 mph3 km/h from SE, gusts 6 mph10 km/h | 39% | 3% | 2 |
| Sat 5p | Sunny | 60°16° (likely 57°14° to 60°16°) | 60°16° | 0% | 1 mph2 km/h from SE, gusts 6 mph10 km/h | 41% | 0% | 1 |
| Sat 6p | Clear | 58°14° (likely 53°12° to 58°14°) | 58°14° | 0% | 0 mph0 km/h, gusts 6 mph9 km/h | 45% | 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 | 52% | 0% | 0 |
| Sat 8p | Clear | 47°8° (likely 47°8° to 49°9°) | 47°8° | 0% | 0 mph0 km/h, gusts 5 mph8 km/h | 68% | 0% | 0 |
| Sat 9p | Clear | 44°7° (likely 44°7° to 48°9°) | 44°7° | 0% | 0 mph0 km/h, gusts 5 mph9 km/h | 79% | 0% | 0 |
| Sat 10p | Clear | 42°6° (likely 42°6° to 46°8°) | 42°6° | 0% | 0 mph0 km/h, gusts 5 mph8 km/h | 86% | 0% | 0 |
| Sat 11p | Clear | 40°4° (likely 40°4° to 45°7°) | 40°4° | 0% | 0 mph0 km/h, gusts 5 mph8 km/h | 92% | 0% | 0 |
| Sun 12a | Clear | 39°4° (likely 39°4° to 43°6°) | 39°4° | 0% | 0 mph0 km/h, gusts 4 mph6 km/h | 96% | 0% | 0 |
| Sun 1a | Clear | 38°3° (likely 38°3° to 43°6°) | 38°3° | 0% | 0 mph0 km/h, gusts 2 mph3 km/h | 96% | 0% | 0 |
| Sun 2a | Clear | 37°3° (likely 37°3° to 42°6°) | 37°3° | 0% | 0 mph0 km/h, gusts 1 mph2 km/h | 100% | 0% | 0 |
| Sun 3a | Clear | 36°2° (likely 35°2° to 41°5°) | 36°2° | 0% | 0 mph0 km/h, gusts 2 mph3 km/h | 100% | 0% | 0 |
| Sun 4a | Clear | 36°2° (likely 34°1° to 40°4°) | 36°2° | 0% | 0 mph0 km/h, gusts 2 mph3 km/h | 100% | 0% | 0 |
| Sun 5a | Clear | 36°2° (likely 33°1° to 39°4°) | 36°2° | 0% | 0 mph0 km/h, gusts 3 mph5 km/h | 96% | 0% | 0 |
| Sun 6a | Clear | 34°1° (likely 33°1° to 38°3°) | 34°1° | 0% | 0 mph0 km/h, gusts 2 mph4 km/h | 100% | 3% | 0 |
| Sun 7a | Sunny | 33°1° (likely 32°0° to 38°3°) | 33°1° | 0% | 0 mph0 km/h, gusts 2 mph3 km/h | 100% | 6% | 0 |
| Sun 8a | Sunny | 35°2° (likely 31°−1° to 39°4°) | 35°2° | 0% | 0 mph0 km/h, gusts 2 mph3 km/h | 100% | 9% | 0 |
| Sun 9a | Sunny | 40°4° (likely 33°1° to 45°7°) | 40°4° | 0% | 0 mph0 km/h, gusts 2 mph3 km/h | 89% | 11% | 1 |
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 62. Northeast wind around 7 mph.
Tonight: Patchy frost between 2am and 3am, then areas of frost and patchy fog. Mostly clear, with a low around 34. Northeast wind 0 to 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: Areas of frost before 9am. Sunny, with a high near 61. Northeast wind around 2 mph.
Night: Patchy frost after 4am. Clear, with a low around 33. Wind around 0 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: Patchy frost before 9am. Sunny, with a high near 64. Southwest wind around 2 mph.
Night: Mostly clear, with a low around 36.
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: Sunny, with a high near 69.
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 64.
Night: Partly 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: Partly sunny, with a high near 61.
Night: Mostly 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.
Official NWS forecast
Day: Partly sunny, with a high near 66.
Night: Partly cloudy, 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.
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
20% chance · 0.1 in2.6 mm
Afternoon
noon–6 PM
30% chance · 0.2 in5 mm
Evening
6 PM–midnight
30% chance · 0.17 in4.3 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 62°, low 34°.
Dry, high 61°, low 33°.
Dry, high 64°, low 36°, warming up.
Mostly dry, highs 60–69°.
Want the meteorologists’ reasoning? Read the NWS forecast discussion (CTP) (opens in a new tab)
No meaningful changes from yesterday’s forecast.
Forecast peak 1.9 ft Fri 2 PM
Reading from Fri 8:45 AM · NWS gauge page
Forecast peak 2.3 ft Fri 2 PM
Reading from Fri 9:15 AM · NWS gauge page
Forecast peak 3.8 ft Fri 2 PM
Reading from Fri 9 AM · NWS gauge page
Forecast peak 1.2 ft Fri 2 PM
Reading from Fri 8:45 AM · NWS gauge page
What this week’s weather means for heating, cooling, pipes and fresh air.
About 60% 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 23 hours are near freezing and damp, when outdoor units defrost more often.
Dry air outside (dew point 41°F).
Today, 2:00 PM–5:00 PM
Good stretch to open the windows.
Today’s expected high is about typical for the date.
On average 2°1° colder than normal (daily mean temperature).
Rutherford weather by month: normals, records, snow and freeze dates
Sunrise 7:26 AM, sunset 6:15 PM.
Mostly clear 4–6:59 AM, but the moon is 95% lit and up.
Waxing gibbous
92% lit · growing