Observed 8:40 PM EDT at KUCP

Harlansburg, PA weather

Clear and 45°7°.

Forecasts agree

Now 45°7°

Clear

Wind: Calm; Light through 8 AM
Dew point: 36°2°; Comfortable
UV tomorrow: 4Moderate; Moderate 12–5 PM · peak 4
Air quality: 39Good; Ozone · tomorrow moderate
Pressure: 30.48 inHg1032 hPa; Rising slowly · +0.03 inHg+1.0 hPa in 3 h

No precipitation expected in the next 2 hours.

From forecast models

Next 48 hours

2°1° cooler than this time yesterday (48°9° then, 46°8° now)

Good hours for

Low 33°1° tomorrow at 6 AM
Above 50°10° tomorrow by 11 AM
High 65°18° tomorrow at 4 PM
Drops 12°7° tomorrow night 6–9 PM (61°16° → 49°9°)
Below 50°10° tomorrow night after 8 PM

TonightDown to 34°1° by 4 AM · Clear
Tomorrow morningUp to 52°11° by 11 AM · Clear
Tomorrow afternoonUp to 65°18° by 4 PM · Clear
Tomorrow nightDown to 39°4° by 5 AM · Partly cloudy
Monday morningUp to 55°13° by 11 AM · Partly cloudy
Monday afternoonUp to 69°21° by 4 PM · Partly cloudy

Hourly forecast, next 48 hours, in the place's local time
Hour	Conditions	Temperature	Feels like	Precipitation	Wind	Humidity	Cloud cover	UV index
Sat 8p	Clear	51°11° (likely 48°9° to 51°11°)	51°11°	0%	1 mph2 km/h from E, gusts 6 mph10 km/h	62%	0%	0
Sat 9p	Clear	49°9° (likely 46°8° to 49°9°)	49°9°	0%	1 mph2 km/h from E, gusts 7 mph12 km/h	66%	1%	0
Sat 10p	Clear	47°8° (likely 45°7° to 47°8°)	47°8°	0%	2 mph3 km/h from E, gusts 9 mph15 km/h	71%	2%	0
Sat 11p	Clear	44°7° (likely 44°7° to 46°8°)	44°7°	0%	2 mph3 km/h from E, gusts 10 mph17 km/h	76%	2%	0
Sun 12a	Clear	42°6° (likely 42°6° to 45°7°)	42°6°	0%	2 mph3 km/h from E, gusts 10 mph16 km/h	81%	2%	0
Sun 1a	Clear	40°4° (likely 40°4° to 44°7°)	40°4°	0%	3 mph5 km/h from E, gusts 9 mph14 km/h	87%	1%	0
Sun 2a	Clear	38°3° (likely 38°3° to 43°6°)	35°2°	0%	3 mph5 km/h from E, gusts 8 mph13 km/h	94%	0%	0
Sun 3a	Clear	36°2° (likely 36°2° to 42°6°)	34°1°	0%	3 mph5 km/h from E, gusts 7 mph11 km/h	95%	0%	0
Sun 4a	Clear	34°1° (likely 34°1° to 41°5°)	34°1°	0%	2 mph3 km/h from E, gusts 6 mph10 km/h	99%	0%	0
Sun 5a	Clear	34°1° (likely 34°1° to 41°5°)	34°1°	0%	2 mph3 km/h from E, gusts 6 mph9 km/h	98%	0%	0
Sun 6a	Clear	33°1° (likely 33°1° to 40°4°)	33°1°	0%	2 mph3 km/h from E, gusts 5 mph9 km/h	100%	0%	0
Sun 7a	Clear	33°1° (likely 33°1° to 39°4°)	33°1°	0%	2 mph3 km/h from E, gusts 6 mph9 km/h	99%	0%	0
Sun 8a	Sunny	33°1° (likely 33°1° to 39°4°)	33°1°	0%	2 mph3 km/h from E, gusts 6 mph10 km/h	100%	0%	0
Sun 9a	Sunny	37°3° (likely 37°3° to 43°6°)	35°2°	0%	3 mph5 km/h from SE, gusts 6 mph10 km/h	100%	0%	0
Sun 10a	Sunny	46°8° (likely 46°8° to 50°10°)	46°8°	0%	2 mph3 km/h from S, gusts 10 mph16 km/h	87%	0%	1
Sun 11a	Sunny	52°11° (likely 52°11° to 55°13°)	52°11°	0%	3 mph5 km/h from S, gusts 9 mph15 km/h	73%	0%	2
Sun 12p	Sunny	57°14° (likely 57°14° to 58°14°)	57°14°	0%	3 mph5 km/h from S, gusts 9 mph15 km/h	63%	1%	3
Sun 1p	Sunny	61°16° (likely 60°16° to 61°16°)	61°16°	0%	3 mph5 km/h from S, gusts 10 mph15 km/h	56%	1%	4
Sun 2p	Sunny	64°18° (likely 61°16° to 64°18°)	64°18°	0%	3 mph5 km/h from S, gusts 8 mph12 km/h	53%	2%	4
Sun 3p	Sunny	64°18° (likely 62°17° to 64°18°)	64°18°	0%	2 mph3 km/h from S, gusts 8 mph13 km/h	52%	5%	4
Sun 4p	Sunny	65°18° (likely 62°17° to 65°18°)	65°18°	0%	2 mph3 km/h from S, gusts 8 mph12 km/h	50%	6%	3
Sun 5p	Mostly sunny	64°18° (likely 61°16° to 64°18°)	64°18°	0%	2 mph3 km/h from S, gusts 8 mph13 km/h	52%	25%	2
Sun 6p	Mostly clear	61°16° (likely 57°14° to 61°16°)	61°16°	0%	1 mph2 km/h from S, gusts 7 mph11 km/h	60%	56%	1
Sun 7p	Partly cloudy	56°13° (likely 53°12° to 56°13°)	56°13°	0%	1 mph2 km/h from SE, gusts 6 mph9 km/h	71%	63%	0
Sun 8p	Mostly clear	49°9° (likely 49°9° to 53°12°)	49°9°	0%	2 mph3 km/h from SE, gusts 7 mph11 km/h	90%	54%	0
Sun 9p	Mostly clear	46°8° (likely 46°8° to 51°11°)	47°8°	0%	1 mph2 km/h from SE, gusts 7 mph11 km/h	95%	60%	0
Sun 10p	Cloudy	44°7° (likely 44°7° to 50°10°)	44°7°	0%	1 mph2 km/h from SE, gusts 7 mph11 km/h	100%	75%	0
Sun 11p	Cloudy	43°6° (likely 43°6° to 49°9°)	43°6°	0%	1 mph2 km/h from S, gusts 6 mph10 km/h	100%	69%	0
Mon 12a	Partly cloudy	42°6° (likely 42°6° to 48°9°)	43°6°	0%	1 mph2 km/h from S, gusts 6 mph9 km/h	100%	49%	0
Mon 1a	Mostly clear	42°6° (likely 42°6° to 46°8°)	42°6°	0%	1 mph2 km/h from S, gusts 4 mph7 km/h	100%	68%	0
Mon 2a	Partly cloudy	41°5° (likely 41°5° to 45°7°)	41°5°	0%	1 mph2 km/h from S, gusts 4 mph6 km/h	100%	34%	0
Mon 3a	Cloudy	40°4° (likely 40°4° to 45°7°)	41°5°	0%	1 mph2 km/h from S, gusts 5 mph8 km/h	100%	51%	0
Mon 4a	Partly cloudy	40°4° (likely 40°4° to 44°7°)	40°4°	0%	1 mph2 km/h from S, gusts 4 mph7 km/h	100%	50%	0
Mon 5a	Partly cloudy	39°4° (likely 39°4° to 44°7°)	39°4°	0%	1 mph2 km/h from S, gusts 4 mph6 km/h	100%	42%	0
Mon 6a	Partly cloudy	39°4° (likely 39°4° to 43°6°)	39°4°	0%	1 mph2 km/h from S, gusts 4 mph7 km/h	100%	55%	0
Mon 7a	Partly cloudy	39°4° (likely 39°4° to 42°6°)	39°4°	0%	1 mph2 km/h from S, gusts 4 mph7 km/h	99%	45%	0
Mon 8a	Sunny	39°4° (likely 39°4° to 42°6°)	39°4°	0%	1 mph2 km/h from S, gusts 5 mph9 km/h	99%	29%	0
Mon 9a	Sunny	42°6° (likely 42°6° to 45°7°)	42°6°	0%	2 mph3 km/h from S, gusts 6 mph9 km/h	100%	26%	0
Mon 10a	Sunny	48°9° (likely 48°9° to 51°11°)	48°9°	0%	2 mph3 km/h from SW, gusts 8 mph13 km/h	95%	5%	1
Mon 11a	Sunny	55°13° (likely 55°13° to 57°14°)	55°13°	0%	2 mph3 km/h from SW, gusts 9 mph15 km/h	81%	18%	2
Mon 12p	Sunny	60°16° (likely 60°16° to 61°16°)	60°16°	0%	3 mph5 km/h from SW, gusts 9 mph14 km/h	70%	8%	3
Mon 1p	Sunny	64°18° (likely 62°17° to 64°18°)	64°18°	0%	3 mph5 km/h from W, gusts 9 mph14 km/h	61%	33%	4
Mon 2p	Mostly sunny	67°19° (likely 64°18° to 67°19°)	67°19°	0%	5 mph8 km/h from W, gusts 10 mph15 km/h	55%	39%	4
Mon 3p	Mostly sunny	68°20° (likely 65°18° to 68°20°)	69°21°	0%	5 mph8 km/h from W, gusts 10 mph17 km/h	51%	35%	3
Mon 4p	Mostly sunny	69°21° (likely 65°18° to 69°21°)	69°21°	0%	3 mph5 km/h from W, gusts 11 mph17 km/h	51%	35%	3
Mon 5p	Mostly sunny	67°19° (likely 64°18° to 67°19°)	67°19°	0%	3 mph5 km/h from W, gusts 9 mph14 km/h	54%	29%	1
Mon 6p	Mostly clear	63°17° (likely 59°15° to 64°18°)	63°17°	0%	2 mph3 km/h from NW, gusts 5 mph9 km/h	62%	24%	1
Mon 7p	Mostly clear	58°14° (likely 55°13° to 58°14°)	58°14°	0%	2 mph3 km/h from NW, gusts 4 mph7 km/h	75%	42%	0

Days ahead

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

Today, Oct 24. Sunny. High 62°17°, low 32°0°. Typical 58°14° / 37°3°. Dry. Forecasts agree.
1. Evening
  6 PM–midnight
  Clear, 51°11°
  Dry
2. Overnight
  midnight–6 AM
  Clear, 34°1°
  Dry
Official NWS forecast
Tonight: Areas of frost after 3am. Clear, with a low around 32. East wind around 3 mph.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
61°16°–62°17°
Low, likely
32°0°–39°4°
Typical high / low
58°14° / 37°3°
Wind
8 mph13 km/h, gusts 15 mph23 km/h
UV peak
4
Tomorrow, Oct 25. Cloudy. High 66°19°, low 39°4°. Typical 58°14° / 36°2°. Dry. Forecasts agree.
1. Morning
  6 AM–noon
  Sunny, 33°1°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 65°18°
  Dry
3. Evening
  6 PM–midnight
  Mostly clear, 49°9°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 39°4°
  Dry
Official NWS forecast
Day: Areas of frost before 10am. Sunny, with a high near 66. Southeast wind around 3 mph.
Night: Mostly clear, with a low around 39. South wind around 2 mph.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
62°17°–66°19°
Low, likely
37°3°–39°4°
Typical high / low
58°14° / 36°2°
Wind
8 mph13 km/h, gusts 14 mph22 km/h
UV peak
4
Monday, Oct 26. Mostly sunny. High 69°21°, low 41°5°. Typical 57°14° / 36°2°. Dry. Forecasts agree.
1. Morning
  6 AM–noon
  Sunny, 39°4°
  Dry
2. Afternoon
  noon–6 PM
  Mostly sunny, 69°21°
  Dry
3. Evening
  6 PM–midnight
  Partly cloudy, 54°12°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 46°8°
  Dry
Official NWS forecast
Day: Sunny, with a high near 69. Southwest wind 1 to 5 mph.
Night: Partly cloudy, with a low around 41. North wind around 2 mph.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
65°18°–69°21°
Low, likely
41°5°–42°6°
Typical high / low
57°14° / 36°2°
Wind
7 mph10 km/h, gusts 15 mph24 km/h
UV peak
4
Tuesday, Oct 27. Partly sunny. High 65°18°, low 42°6°. Typical 57°14° / 36°2°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Mostly sunny, 44°6°
  Dry
2. Afternoon
  noon–6 PM
  Mostly sunny, 62°17°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 52°11°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 47°9°
  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 42.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
61°16°–65°18°
Low, likely
42°6°–45°7°
Typical high / low
57°14° / 36°2°
Wind
6 mph10 km/h, gusts 12 mph19 km/h
UV peak
4
Wednesday, Oct 28. Cloudy. High 69°21°, low 45°7°. Typical 57°14° / 36°2°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Cloudy, 48°9°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 66°19°
  Dry
3. Evening
  6 PM–midnight
  Clear, 55°13°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 48°9°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Partly sunny, with a high near 69.
Night: Partly cloudy, with a low around 45.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
65°18°–69°21°
Low, likely
45°7°–48°9°
Typical high / low
57°14° / 36°2°
Wind
8 mph13 km/h, gusts 20 mph32 km/h
UV peak
3
Thursday, Oct 29. Mostly sunny. High 72°22°, low 45°7°. Typical 56°13° / 35°2°. Dry. Forecasts agree.
1. Morning
  6 AM–noon
  Sunny, 47°8°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 69°21°
  Dry
3. Evening
  6 PM–midnight
  Mostly clear, 57°14°
  Dry
4. Overnight
  midnight–6 AM
  Mostly clear, 52°11°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Sunny, with a high near 72.
Night: Mostly clear, with a low around 45.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
69°21°–72°22°
Low, likely
45°7°–48°9°
Typical high / low
56°13° / 35°2°
Wind
10 mph16 km/h, gusts 28 mph46 km/h
UV peak
4
Friday, Oct 30. Partly sunny. High 71°22°, low 45°7°. Typical 56°13° / 35°2°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 50°10°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 69°20°
  Dry
3. Evening
  6 PM–midnight
  Clear, 57°14°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 50°10°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly sunny, with a high near 71.
Night: Partly cloudy, with a low around 45.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
66°19°–71°22°
Low, likely
45°7°–51°11°
Typical high / low
56°13° / 35°2°
Wind
7 mph12 km/h, gusts 19 mph30 km/h
UV peak
3
Saturday, Oct 31. Partly sunny. High 70°21°, low 48°9°. Typical 55°13° / 35°2°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 49°9°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 69°20°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 59°15°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 56°14°
  30% chance
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly sunny, with a high near 70.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
63°17°–71°22°
Low, likely
40°4°–52°11°
Typical high / low
55°13° / 35°2°
Wind
8 mph13 km/h, gusts 15 mph23 km/h
UV peak
2
Sunday, Nov 1. Drizzle. High 63°17°, low 55°13°. Typical 55°13° / 34°1°. Rain 0.48 in12 mm, 50% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 57°14°
  40% chance · 0.05 in1.4 mm
2. Afternoon
  noon–6 PM
  Drizzle, 61°16°
  50% chance · 0.28 in7.2 mm
3. Evening
  6 PM–midnight
  Drizzle, 60°16°
  50% chance · 0.28 in7 mm
4. Overnight
  midnight–6 AM
  Drizzle, 60°16°
  50% chance · 0.09 in2.3 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.
High, likely
58°14°–68°20°
Low, likely
53°12°–60°16°
Typical high / low
55°13° / 34°1°
Wind
16 mph26 km/h, gusts 39 mph62 km/h
UV peak
1
Monday, Nov 2. Drizzle. High 64°18°, low 54°12°. Typical 54°12° / 34°1°. Rain 0.63 in16 mm, 50% chance. Mostly agree.
1. Morning
  6 AM–noon
  Drizzle, 60°16°
  40% chance · 0.27 in6.8 mm
2. Afternoon
  noon–6 PM
  Drizzle, 63°17°
  40% chance · 0.34 in8.5 mm
3. Evening
  6 PM–midnight
  Drizzle, 55°13°
  40% chance · 0.06 in1.5 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.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
62°17°–67°19°
Low, likely
51°11°–58°14°
Typical high / low
54°12° / 34°1°
Wind
16 mph26 km/h, gusts 33 mph53 km/h
UV peak
3

10 days15 days30 days

The outlook

Today
Dry, high 62°, low 32°.
Tomorrow
Dry, high 66°, low 39°, warming up.
Monday
Dry, high 69°, low 41°, warming up.
Rest of week
Highs 63–72°; chance of precipitation on Sunday, Monday.

Want the meteorologists’ reasoning? Read the NWS forecast discussion (PBZ) (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

Beaver River near Beaver Falls

19 mi

Below flood stage

Level: 4.9 ft
Flow: 1,150 cfs

Forecast peak 4.9 ft Sun 2 AM

Reading from Sat 7:15 PM · NWS gauge page

Muddy Creek above Portersville

4.8 mi

Level: 1.5 ft

Reading from Sat 8:15 PM · NWS gauge page

Shenango River at New Castle

9.3 mi

Below flood stage

Level: 5.5 ft
Flow: 239 cfs

Reading from Sat 7:45 PM · NWS gauge page

Slippery Rock Creek at Wurtemburg

9.7 mi

Below flood stage

Level: 1.2 ft
Flow: 111 cfs

Reading from Sat 7:30 PM · NWS gauge page

For your home

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

Heating this week

About 75% less heating than a typical week.

This week 32Typical 130

Heating degree days, base 65°F

Heat-pump hours, next 7 days

h below 47°F: 26
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 20 hours are near freezing and damp, when outdoor units defrost more often.

Comfort

Dry air outside (dew point 36°F).

Open the windows?

Sun, 1:00 PM–6:00 PM

Good stretch to open the windows.

Is this typical?

Slippery Rock 1 Ssw · official normals 1991–2020 · records 1949–2026

Oct 24, today vs a typical year

Today’s expected high is 4°2° warmer than typical.

Last 7 days vs normal

—SunOct 18
—MonOct 19
—TueOct 20
—WedOct 21
—ThuOct 22
—FriOct 23
—SatOct 24

Harlansburg weather by month: normals, records, snow and freeze dates

Sun & moon

Sun

Daylight: 10 h 44 min; Losing 2 min 35 s a day; shortest Dec 21, 1 h 31 min less
Golden hour: 5:48–6:44 PM; Morning 7:25–8:20 AM
Blue hour: 6:44–6:54 PM; Morning 7:14–7:25 AM; first light 7:14 AM

Stars tonight? Fair

Clear 8:57 PM–7:15 AM, but the moon is 99% lit and up.

Moon

Waxing gibbous

98% lit · growing

Today: sets 5:54 AM · rises 5:24 PM
Full moon: Oct 26
New moon: Nov 9

Looking east from Harlansburg. The highest point on the skyline is about 4,400 ft, 26 mi away.Skyline from USGS elevation data, heights drawn up to 6× taller. Sky, sun and moon as they are now.

Harlansburg, PA weather

Next 2 hours

Next 48 hours

Days ahead

The outlook

Today

Tomorrow

Monday

Rest of week

What changed since yesterday

Radar

Rivers

Beaver River near Beaver Falls

Muddy Creek above Portersville

Shenango River at New Castle

Slippery Rock Creek at Wurtemburg

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