Swatara Creek at Harper Tavern
11 mi- Level
- 0.7 ft
- Flow
- 220 cfs
Forecast peak 0.7 ft Sat 2 AM
Reading from Fri 11:15 PM · NWS gauge page
Appearance
Ends in 8 h 19 min
Issued for this forecast zone · National Weather Service State College PA
What
Sub-freezing temperatures as low as 30 possible.
Impacts
Freezing conditions could kill crops and other sensitive vegetation.
Precautionary actions
Take steps to protect tender plants and vegetation from the cold if you wish to extend the growing season.
Areas: Lebanon; Lancaster
See it on weather.gov (opens in a new tab)Observed 11:45 PM EDT at KLNS
Freeze Warning. 43°6° and clear now.
Today: low 33°1° (likely 33°1° to 38°3°), high 62°17° (likely 59°15° to 62°17°).
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 |
|---|---|---|---|---|---|---|---|---|
| Sat 12a | Clear | 41°5° (likely 41°5° to 43°6°) | 41°5° | 0% | 1 mph2 km/h from SE, gusts 6 mph10 km/h | 86% | 1% | 0 |
| Sat 1a | Clear | 39°4° (likely 39°4° to 43°6°) | 39°4° | 0% | 0 mph0 km/h, gusts 5 mph8 km/h | 89% | 2% | 0 |
| Sat 2a | Clear | 38°3° (likely 38°3° to 42°6°) | 38°3° | 0% | 0 mph0 km/h, gusts 3 mph5 km/h | 92% | 4% | 0 |
| Sat 3a | Clear | 36°2° (likely 36°2° to 41°5°) | 36°2° | 0% | 1 mph2 km/h from E, gusts 2 mph3 km/h | 100% | 4% | 0 |
| Sat 4a | Clear | 35°2° (likely 35°2° to 39°4°) | 35°2° | 0% | 1 mph2 km/h from E, gusts 3 mph5 km/h | 100% | 3% | 0 |
| Sat 5a | Clear | 34°1° (likely 34°1° to 39°4°) | 34°1° | 0% | 2 mph3 km/h from E, gusts 4 mph7 km/h | 100% | 17% | 0 |
| Sat 6a | Clear | 34°1° (likely 34°1° to 38°3°) | 34°1° | 0% | 2 mph3 km/h from NE, gusts 5 mph8 km/h | 100% | 21% | 0 |
| Sat 7a | Sunny | 34°1° (likely 34°1° to 38°3°) | 34°1° | 0% | 1 mph2 km/h from E, gusts 5 mph8 km/h | 100% | 20% | 0 |
| Sat 8a | Sunny | 33°1° (likely 33°1° to 38°3°) | 33°1° | 0% | 2 mph3 km/h from E, gusts 5 mph7 km/h | 100% | 15% | 0 |
| Sat 9a | Sunny | 40°4° (likely 40°4° to 43°6°) | 40°4° | 0% | 1 mph2 km/h from E, gusts 4 mph7 km/h | 79% | 2% | 1 |
| Sat 10a | Sunny | 46°8° (likely 46°8° to 49°9°) | 46°8° | 0% | 1 mph2 km/h from E, gusts 3 mph5 km/h | 71% | 0% | 2 |
| Sat 11a | Sunny | 53°12° (likely 52°11° to 54°12°) | 53°12° | 0% | 1 mph2 km/h from E, gusts 3 mph5 km/h | 54% | 0% | 3 |
| Sat 12p | Sunny | 55°13° (likely 55°13° to 57°14°) | 55°13° | 0% | 2 mph3 km/h from SE, gusts 3 mph5 km/h | 53% | 0% | 4 |
| Sat 1p | Sunny | 59°15° (likely 57°14° to 59°15°) | 59°15° | 0% | 2 mph3 km/h from SE, gusts 4 mph7 km/h | 44% | 1% | 4 |
| Sat 2p | Sunny | 60°16° (likely 58°14° to 60°16°) | 60°16° | 0% | 2 mph3 km/h from SE, gusts 4 mph6 km/h | 42% | 2% | 4 |
| Sat 3p | Sunny | 60°16° (likely 59°15° to 60°16°) | 60°16° | 0% | 1 mph2 km/h from SE, gusts 4 mph6 km/h | 41% | 2% | 3 |
| Sat 4p | Sunny | 61°16° (likely 59°15° to 61°16°) | 61°16° | 0% | 0 mph0 km/h, gusts 4 mph6 km/h | 41% | 1% | 2 |
| Sat 5p | Sunny | 60°16° (likely 58°14° to 60°16°) | 60°16° | 0% | 1 mph2 km/h from SE, gusts 3 mph5 km/h | 42% | 0% | 1 |
| Sat 6p | Clear | 57°14° (likely 54°12° to 57°14°) | 57°14° | 0% | 1 mph2 km/h from SE, gusts 5 mph8 km/h | 47% | 0% | 0 |
| Sat 7p | Clear | 53°12° (likely 50°10° to 53°12°) | 53°12° | 0% | 1 mph2 km/h from SE, gusts 5 mph9 km/h | 52% | 0% | 0 |
| Sat 8p | Clear | 48°9° (likely 48°9° to 50°10°) | 48°9° | 0% | 0 mph0 km/h, gusts 6 mph9 km/h | 65% | 0% | 0 |
| Sat 9p | Clear | 46°8° (likely 46°8° to 49°9°) | 46°8° | 0% | 0 mph0 km/h, gusts 5 mph8 km/h | 71% | 0% | 0 |
| Sat 10p | Clear | 44°7° (likely 44°7° to 48°9°) | 44°7° | 0% | 0 mph0 km/h, gusts 5 mph8 km/h | 76% | 0% | 0 |
| Sat 11p | Clear | 42°6° (likely 42°6° to 47°8°) | 42°6° | 0% | 0 mph0 km/h, gusts 5 mph9 km/h | 82% | 0% | 0 |
| Sun 12a | Clear | 41°5° (likely 41°5° to 47°8°) | 41°5° | 0% | 0 mph0 km/h, gusts 5 mph8 km/h | 82% | 0% | 0 |
| Sun 1a | Clear | 40°4° (likely 40°4° to 46°8°) | 40°4° | 0% | 0 mph0 km/h, gusts 5 mph7 km/h | 92% | 0% | 0 |
| Sun 2a | Clear | 39°4° (likely 39°4° to 45°7°) | 39°4° | 0% | 0 mph0 km/h, gusts 5 mph8 km/h | 96% | 0% | 0 |
| Sun 3a | Clear | 37°3° (likely 37°3° to 45°7°) | 37°3° | 0% | 0 mph0 km/h, gusts 5 mph8 km/h | 96% | 0% | 0 |
| Sun 4a | Clear | 36°2° (likely 36°2° to 44°7°) | 36°2° | 0% | 0 mph0 km/h, gusts 4 mph7 km/h | 92% | 0% | 0 |
| Sun 5a | Clear | 36°2° (likely 36°2° to 44°7°) | 36°2° | 0% | 0 mph0 km/h, gusts 3 mph5 km/h | 92% | 0% | 0 |
| Sun 6a | Clear | 35°2° (likely 35°2° to 42°6°) | 35°2° | 0% | 0 mph0 km/h, gusts 1 mph2 km/h | 92% | 0% | 0 |
| Sun 7a | Sunny | 35°2° (likely 35°2° to 41°5°) | 35°2° | 0% | 0 mph0 km/h, gusts 2 mph3 km/h | 92% | 0% | 0 |
| Sun 8a | Sunny | 36°2° (likely 35°2° to 41°5°) | 36°2° | 0% | 0 mph0 km/h, gusts 1 mph2 km/h | 96% | 0% | 0 |
| Sun 9a | Sunny | 41°5° (likely 38°3° to 46°8°) | 41°5° | 0% | 0 mph0 km/h, gusts 2 mph3 km/h | 96% | 0% | 1 |
| Sun 10a | Sunny | 48°9° (likely 48°9° to 51°11°) | 48°9° | 0% | 0 mph0 km/h, gusts 3 mph5 km/h | 74% | 1% | 2 |
| Sun 11a | Sunny | 54°12° (likely 54°12° to 55°13°) | 54°12° | 0% | 1 mph2 km/h from SW, gusts 5 mph8 km/h | 66% | 2% | 3 |
| Sun 12p | Sunny | 58°14° (likely 58°14° to 59°15°) | 58°14° | 0% | 2 mph3 km/h from SW, gusts 6 mph10 km/h | 53% | 2% | 4 |
| Sun 1p | Sunny | 60°16° (likely 59°15° to 60°16°) | 60°16° | 0% | 3 mph5 km/h from SW, gusts 6 mph10 km/h | 47% | 3% | 4 |
| Sun 2p | Sunny | 62°17° (likely 60°16° to 62°17°) | 62°17° | 0% | 3 mph5 km/h from SW, gusts 8 mph12 km/h | 46% | 4% | 4 |
| Sun 3p | Sunny | 63°17° (likely 61°16° to 63°17°) | 63°17° | 0% | 3 mph5 km/h from SW, gusts 8 mph12 km/h | 44% | 5% | 3 |
| Sun 4p | Sunny | 64°18° (likely 61°16° to 64°18°) | 64°18° | 0% | 3 mph5 km/h from SW, gusts 7 mph12 km/h | 45% | 6% | 2 |
| Sun 5p | Sunny | 62°17° (likely 60°16° to 62°17°) | 62°17° | 0% | 2 mph3 km/h from SW, gusts 7 mph11 km/h | 48% | 9% | 1 |
| Sun 6p | Clear | 59°15° (likely 56°13° to 59°15°) | 59°15° | 0% | 1 mph2 km/h from SW, gusts 5 mph8 km/h | 53% | 1% | 0 |
| Sun 7p | Clear | 54°12° (likely 51°11° to 54°12°) | 54°12° | 0% | 1 mph2 km/h from SW, gusts 3 mph5 km/h | 64% | 0% | 0 |
| Sun 8p | Clear | 50°10° (likely 49°9° to 52°11°) | 50°10° | 0% | 0 mph0 km/h, gusts 3 mph6 km/h | 74% | 2% | 0 |
| Sun 9p | Clear | 47°8° (likely 45°7° to 49°9°) | 47°8° | 0% | 0 mph0 km/h, gusts 2 mph3 km/h | 86% | 0% | 0 |
| Sun 10p | Clear | 45°7° (likely 42°6° to 48°9°) | 45°7° | 0% | 0 mph0 km/h, gusts 2 mph3 km/h | 89% | 0% | 0 |
| Sun 11p | Clear | 44°7° (likely 39°4° to 46°8°) | 44°7° | 0% | 0 mph0 km/h, gusts 2 mph3 km/h | 93% | 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: Widespread frost before 9am. Sunny, with a high near 62. East wind around 2 mph.
Tonight: Widespread frost after 1am. Mostly clear, with a low around 33. East wind around 2 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 and patchy fog before 10am. Sunny, with a high near 64. West wind 0 to 3 mph.
Night: Patchy fog between midnight and 4am. Mostly clear, with a low around 38. West wind around 2 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: Sunny, with a high near 68.
Night: Mostly clear, with a low around 45.
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 65.
Night: Partly cloudy, with a low around 42.
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 62.
Night: Mostly 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.
Official NWS forecast
Day: Mostly sunny, with a high near 69.
Night: Partly cloudy, with a low around 48.
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.
Official NWS forecast
Day: Mostly sunny, with a high near 69.
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.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
Morning
6 AM–noon
20% chance
Afternoon
noon–6 PM
30% chance
Evening
6 PM–midnight
30% chance
Overnight
midnight–6 AM
30% chance · 0.02 in0.4 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.
Morning
6 AM–noon
20% chance · 0.08 in2.1 mm
Afternoon
noon–6 PM
30% chance · 0.15 in3.9 mm
Evening
6 PM–midnight
30% chance · 0.08 in1.9 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 33°.
Dry, high 64°, low 38°.
Dry, high 68°, low 45°, warming up.
Mostly dry, highs 61–69°.
Want the meteorologists’ reasoning? Read the NWS forecast discussion (CTP) (opens in a new tab)
No meaningful changes from yesterday’s forecast.
Forecast peak 0.7 ft Sat 2 AM
Reading from Fri 11:15 PM · NWS gauge page
Forecast peak 1.9 ft Sat 2 AM
Reading from Fri 10:45 PM · NWS gauge page
Forecast peak 34.5 ft Sat 2 AM
Reading from Fri 11:30 PM · NWS gauge page
Forecast peak 2.3 ft Sat 2 AM
Reading from Fri 11:15 PM · NWS gauge page
What this week’s weather means for heating, cooling, pipes and fresh air.
About 67% 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 36°F).
Today, 2:00 PM–5:00 PM
Good stretch to open the windows (air quality forecast not available for part of this window).
Today’s expected high is about typical for the date.
Quentin weather by month: normals, records, snow and freeze dates
Sunrise 7:26 AM, sunset 6:12 PM.
Clear 12:41–6:58 AM; moon 96% lit, sets 5:37 AM.
Waxing gibbous
95% lit · growing