Observed 9:40 AM EDT at KBTP

Portersville, PA weather

Sunny and 46°8°.

Forecasts agree

Now 46°8°

Sunny

Wind: 6 mph9 km/h; From the east-northeast. Up to 6 mph9 km/h through 10 PM
Dew point: 39°4°; Comfortable
UV index: 1Low; Moderate 12–4 PM · peak 3
Air quality: 37Good; PM2.5 (fine particles) · tomorrow moderate
Pressure: 30.49 inHg1033 hPa; Rising slowly · +0.02 inHg+0.6 hPa in 3 h

No precipitation expected in the next 2 hours.

From forecast models

Next 48 hours

5°3° cooler than this time yesterday (45°7° then, 40°4° now)

Good hours for

Above 50°10° today by 11 AM
High 62°17° today at 2 PM
Below 50°10° tonight after 8 PM
Fog tomorrow night 11 PM–2 AM
Fog Monday 6–7 AM

This morningUp to 53°12° by 11 AM · Clear
This afternoonUp to 62°17° by 2 PM · Clear
TonightDown to 36°2° by 5 AM · Clear
Tomorrow morningUp to 53°12° by 11 AM · Clear
Tomorrow afternoonUp to 64°18° by 4 PM · Clear
Tomorrow nightDown to 39°4° by 5 AM · Clear
Monday morningUp to 43°6° by 9 AM · 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 10a	Sunny	47°8° (likely 47°8° to 49°9°)	46°8°	0%	3 mph5 km/h from SE, gusts 10 mph16 km/h	77%	0%	1
Sat 11a	Sunny	53°12° (likely 51°11° to 54°12°)	53°12°	0%	3 mph5 km/h from SE, gusts 10 mph16 km/h	66%	1%	2
Sat 12p	Sunny	57°14° (likely 54°12° to 57°14°)	57°14°	0%	3 mph5 km/h from SE, gusts 9 mph14 km/h	55%	1%	3
Sat 1p	Sunny	60°16° (likely 56°13° to 60°16°)	60°16°	0%	3 mph5 km/h from SE, gusts 9 mph14 km/h	50%	2%	3
Sat 2p	Sunny	62°17° (likely 58°14° to 62°17°)	62°17°	0%	3 mph5 km/h from SE, gusts 8 mph13 km/h	46%	1%	3
Sat 3p	Sunny	62°17° (likely 59°15° to 62°17°)	62°17°	0%	3 mph5 km/h from SE, gusts 8 mph14 km/h	44%	1%	3
Sat 4p	Sunny	62°17° (likely 59°15° to 62°17°)	63°17°	0%	2 mph3 km/h from SE, gusts 8 mph13 km/h	43%	1%	2
Sat 5p	Sunny	61°16° (likely 58°14° to 61°16°)	61°16°	0%	2 mph3 km/h from SE, gusts 8 mph13 km/h	44%	1%	1
Sat 6p	Clear	58°14° (likely 55°13° to 58°14°)	58°14°	0%	2 mph3 km/h from E, gusts 7 mph12 km/h	51%	0%	0
Sat 7p	Clear	53°12° (likely 50°10° to 53°12°)	53°12°	0%	2 mph3 km/h from E, gusts 6 mph10 km/h	63%	0%	0
Sat 8p	Clear	48°9° (likely 47°8° to 49°9°)	48°9°	0%	2 mph3 km/h from E, gusts 8 mph12 km/h	83%	0%	0
Sat 9p	Clear	46°8° (likely 44°7° to 48°9°)	46°8°	0%	2 mph3 km/h from E, gusts 9 mph14 km/h	86%	0%	0
Sat 10p	Clear	44°7° (likely 43°6° to 47°8°)	42°6°	0%	3 mph5 km/h from SE, gusts 10 mph16 km/h	88%	0%	0
Sat 11p	Clear	42°6° (likely 42°6° to 46°8°)	40°4°	0%	5 mph8 km/h from SE, gusts 10 mph16 km/h	88%	0%	0
Sun 12a	Clear	41°5° (likely 41°5° to 45°7°)	39°4°	0%	3 mph5 km/h from SE, gusts 10 mph16 km/h	89%	0%	0
Sun 1a	Clear	40°4° (likely 40°4° to 43°6°)	38°3°	0%	3 mph5 km/h from SE, gusts 10 mph16 km/h	86%	0%	0
Sun 2a	Clear	39°4° (likely 39°4° to 42°6°)	37°3°	0%	3 mph5 km/h from SE, gusts 9 mph15 km/h	86%	0%	0
Sun 3a	Clear	38°3° (likely 38°3° to 41°5°)	38°3°	0%	2 mph3 km/h from SE, gusts 8 mph13 km/h	87%	0%	0
Sun 4a	Clear	37°3° (likely 37°3° to 40°4°)	37°3°	0%	2 mph3 km/h from SE, gusts 8 mph12 km/h	88%	0%	0
Sun 5a	Clear	36°2° (likely 36°2° to 40°4°)	36°2°	0%	2 mph3 km/h from SE, gusts 7 mph11 km/h	92%	0%	0
Sun 6a	Clear	35°2° (likely 35°2° to 39°4°)	35°2°	0%	2 mph3 km/h from SE, gusts 7 mph11 km/h	92%	0%	0
Sun 7a	Clear	35°2° (likely 35°2° to 39°4°)	35°2°	0%	2 mph3 km/h from SE, gusts 7 mph11 km/h	93%	0%	0
Sun 8a	Sunny	35°2° (likely 35°2° to 38°3°)	35°2°	0%	2 mph3 km/h from SE, gusts 6 mph10 km/h	93%	0%	0
Sun 9a	Sunny	38°3° (likely 38°3° to 42°6°)	38°3°	0%	2 mph3 km/h from SE, gusts 7 mph11 km/h	92%	0%	0
Sun 10a	Sunny	47°8° (likely 47°8° to 48°9°)	47°8°	0%	2 mph3 km/h from SE, gusts 9 mph15 km/h	78%	0%	1
Sun 11a	Sunny	53°12° (likely 52°11° to 53°12°)	53°12°	0%	3 mph5 km/h from S, gusts 9 mph14 km/h	67%	1%	2
Sun 12p	Sunny	57°14° (likely 55°13° to 57°14°)	57°14°	0%	3 mph5 km/h from S, gusts 8 mph13 km/h	60%	1%	3
Sun 1p	Sunny	61°16° (likely 58°14° to 61°16°)	61°16°	0%	3 mph5 km/h from S, gusts 7 mph12 km/h	53%	1%	4
Sun 2p	Sunny	63°17° (likely 60°16° to 63°17°)	63°17°	0%	3 mph5 km/h from S, gusts 8 mph12 km/h	50%	1%	4
Sun 3p	Sunny	63°17° (likely 61°16° to 63°17°)	63°17°	0%	2 mph3 km/h from S, gusts 8 mph12 km/h	48%	40%	4
Sun 4p	Sunny	64°18° (likely 61°16° to 64°18°)	64°18°	0%	2 mph3 km/h from S, gusts 7 mph12 km/h	47%	42%	3
Sun 5p	Sunny	63°17° (likely 60°16° to 63°17°)	63°17°	0%	2 mph3 km/h from S, gusts 8 mph13 km/h	47%	35%	2
Sun 6p	Clear	60°16° (likely 57°14° to 60°16°)	60°16°	0%	1 mph2 km/h from S, gusts 6 mph9 km/h	56%	40%	1
Sun 7p	Clear	55°13° (likely 52°11° to 55°13°)	55°13°	0%	1 mph2 km/h from SE, gusts 6 mph9 km/h	68%	7%	0
Sun 8p	Clear	49°9° (likely 49°9° to 52°11°)	49°9°	0%	1 mph2 km/h from SE, gusts 6 mph10 km/h	86%	5%	0
Sun 9p	Mostly clear	47°8° (likely 47°8° to 50°10°)	47°8°	0%	1 mph2 km/h from SE, gusts 6 mph10 km/h	90%	14%	0
Sun 10p	Clear	45°7° (likely 45°7° to 49°9°)	45°7°	0%	1 mph2 km/h from SE, gusts 7 mph11 km/h	93%	20%	0
Sun 11p	Fog	44°7° (likely 44°7° to 48°9°)	44°7°	0%	1 mph2 km/h from SE, gusts 7 mph11 km/h	96%	34%	0
Mon 12a	Fog	43°6° (likely 43°6° to 47°8°)	43°6°	0%	1 mph2 km/h from S, gusts 6 mph9 km/h	97%	30%	0
Mon 1a	Fog	42°6° (likely 42°6° to 46°8°)	42°6°	0%	1 mph2 km/h from S, gusts 5 mph8 km/h	97%	23%	0
Mon 2a	Clear	41°5° (likely 41°5° to 45°7°)	41°5°	0%	1 mph2 km/h from S, gusts 5 mph8 km/h	98%	20%	0
Mon 3a	Clear	40°4° (likely 40°4° to 44°7°)	41°5°	0%	1 mph2 km/h from S, gusts 5 mph8 km/h	99%	19%	0
Mon 4a	Clear	40°4° (likely 40°4° to 43°6°)	40°4°	0%	1 mph2 km/h from S, gusts 4 mph7 km/h	100%	19%	0
Mon 5a	Clear	39°4° (likely 39°4° to 43°6°)	39°4°	0%	1 mph2 km/h from S, gusts 5 mph8 km/h	100%	21%	0
Mon 6a	Fog	38°3° (likely 38°3° to 43°6°)	38°3°	0%	1 mph2 km/h from S, gusts 5 mph8 km/h	100%	41%	0
Mon 7a	Clear	37°3° (likely 37°3° to 42°6°)	37°3°	0%	1 mph2 km/h from S, gusts 5 mph7 km/h	100%	25%	0
Mon 8a	Sunny	38°3° (likely 37°3° to 42°6°)	39°4°	0%	1 mph2 km/h from S, gusts 4 mph7 km/h	100%	23%	0
Mon 9a	Mostly sunny	43°6° (likely 38°3° to 47°8°)	43°6°	0%	1 mph2 km/h from S, gusts 3 mph6 km/h	93%	33%	0

Days ahead

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

Today, Oct 24. Sunny. High 63°17°, low 35°2°. Typical 58°14° / 37°3°. Dry. Forecasts agree.
1. Morning
  6 AM–noon
  Sunny, 53°12°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 62°17°
  Dry
3. Evening
  6 PM–midnight
  Clear, 48°9°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 36°2°
  Dry
Official NWS forecast
Today: Sunny, with a high near 63. Southeast wind around 3 mph.
Tonight: Areas of frost after 5am. Clear, with a low around 35. East wind around 5 mph.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
59°15°–63°17°
Low, likely
35°2°–40°4°
Typical high / low
58°14° / 37°3°
Wind
8 mph12 km/h, gusts 15 mph23 km/h
UV peak
4
Tomorrow, Oct 25. Fog. High 65°18°, low 37°3°. Typical 58°14° / 36°2°. Dry. Forecasts agree.
1. Morning
  6 AM–noon
  Sunny, 35°2°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 64°18°
  Dry
3. Evening
  6 PM–midnight
  Mostly clear, 49°9°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 39°4°
  Dry
Official NWS forecast
Day: Areas of frost before 7am, then areas of frost and patchy fog between 7am and 9am. Sunny, with a high near 65. Southeast wind around 3 mph.
Night: Areas of fog after 10pm. Mostly clear, with a low around 37. South wind around 1 mph.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
61°16°–65°18°
Low, likely
35°2°–38°3°
Typical high / low
58°14° / 36°2°
Wind
8 mph12 km/h, gusts 14 mph23 km/h
UV peak
4
Monday, Oct 26. Fog. High 68°20°, low 40°4°. Typical 57°14° / 36°2°. Dry. Forecasts agree.
1. Morning
  6 AM–noon
  Mostly sunny, 38°3°
  Dry
2. Afternoon
  noon–6 PM
  Mostly sunny, 65°18°
  Dry
3. Evening
  6 PM–midnight
  Clear, 53°12°
  Dry
4. Overnight
  midnight–6 AM
  Mostly clear, 45°7°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Patchy fog before 9am. Sunny, with a high near 68. Southwest wind 1 to 5 mph.
Night: Partly cloudy, with a low around 40.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
64°18°–68°20°
Low, likely
37°3°–42°6°
Typical high / low
57°14° / 36°2°
Wind
6 mph9 km/h, gusts 14 mph23 km/h
UV peak
4
Tuesday, Oct 27. Partly sunny. High 63°17°, low 41°5°. Typical 57°14° / 36°2°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 44°7°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 63°17°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 52°11°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 47°8°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly sunny, with a high near 63.
Night: Partly cloudy, with a low around 41.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
61°16°–64°18°
Low, likely
41°5°–45°7°
Typical high / low
57°14° / 36°2°
Wind
6 mph10 km/h, gusts 12 mph20 km/h
UV peak
4
Wednesday, Oct 28. Cloudy. High 66°19°, low 44°7°. Typical 57°14° / 36°2°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Cloudy, 47°8°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 64°18°
  Dry
3. Evening
  6 PM–midnight
  Partly cloudy, 54°12°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 46°8°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly cloudy, with a high near 66.
Night: Partly cloudy, with a low around 44.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
63°17°–66°19°
Low, likely
44°7°–47°8°
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 70°21°, low 44°7°. Typical 56°13° / 35°2°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 45°7°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 67°19°
  Dry
3. Evening
  6 PM–midnight
  Clear, 56°13°
  Dry
4. Overnight
  midnight–6 AM
  Partly cloudy, 49°10°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Sunny, with a high near 70.
Night: Mostly clear, with a low around 44.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
66°19°–70°21°
Low, likely
44°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 67°19°, low 42°6°. Typical 56°13° / 35°2°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Sunny, 47°8°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 65°18°
  Dry
3. Evening
  6 PM–midnight
  Clear, 52°11°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 42°6°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly sunny, with a high near 67.
Night: Partly cloudy, with a low around 42.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
62°17°–69°21°
Low, likely
42°6°–48°9°
Typical high / low
56°13° / 35°2°
Wind
10 mph17 km/h, gusts 19 mph31 km/h
UV peak
3
Saturday, Oct 31. Cloudy. High 65°18°, low 45°7°. Typical 55°13° / 35°2°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Mostly sunny, 42°5°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 63°17°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 53°12°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 50°10°
  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.
High, likely
55°13°–70°21°
Low, likely
37°3°–50°10°
Typical high / low
55°13° / 35°2°
Wind
8 mph13 km/h, gusts 26 mph42 km/h
UV peak
3
Sunday, Nov 1. Cloudy. High 65°18°, low 50°10°. Typical 55°13° / 34°1°. Rain 0.05 in1.3 mm, 40% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 49°10°
  30% chance
2. Afternoon
  noon–6 PM
  Cloudy, 64°18°
  40% chance
3. Evening
  6 PM–midnight
  Cloudy, 56°13°
  40% chance · 0.04 in1.1 mm
4. Overnight
  midnight–6 AM
  Drizzle, 55°13°
  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
56°13°–71°22°
Low, likely
43°6°–55°13°
Typical high / low
55°13° / 34°1°
Wind
13 mph20 km/h, gusts 30 mph49 km/h
UV peak
3
Monday, Nov 2. Drizzle. High 58°14°, low 52°11°. Typical 54°12° / 34°1°. Rain 0.48 in12 mm, 50% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Drizzle, 56°13°
  50% chance · 0.08 in2 mm
2. Afternoon
  noon–6 PM
  Drizzle, 59°15°
  50% chance · 0.13 in3.3 mm
3. Evening
  6 PM–midnight
  Drizzle, 52°11°
  40% chance · 0.12 in3 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
46°8°–64°18°
Low, likely
44°7°–58°14°
Typical high / low
54°12° / 34°1°
Wind
12 mph20 km/h, gusts 29 mph47 km/h

10 days15 days30 days

The outlook

Today
Dry, high 63°, low 35°.
Tomorrow
Dry, high 65°, low 37°.
Monday
Dry, high 68°, low 40°, warming up.
Rest of week
Highs 58–70°; chance of precipitation on 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

14 mi

Below flood stage

Level: 4.9 ft
Flow: 1,170 cfs

Forecast peak 4.9 ft Sat 2 PM

Reading from Sat 8:15 AM · NWS gauge page

Ohio River at Montgomery Lock and Dam

23 mi

Below flood stage

Level: 13.1 ft

Forecast peak 12.7 ft Sat 2 PM

Reading from Sat 8:45 AM · NWS gauge page

Muddy Creek above Portersville

2.9 mi

Level: 1.5 ft

Reading from Sat 9:15 AM · NWS gauge page

Slippery Rock Creek at Wurtemburg

5.3 mi

Below flood stage

Level: 1.2 ft
Flow: 111 cfs

Reading from Sat 8:30 AM · NWS gauge page

For your home

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

Heating this week

About 74% less heating than a typical week.

This week 33Typical 130

Heating degree days, base 65°F

Heat-pump hours, next 7 days

h below 47°F: 27
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 19 hours are near freezing and damp, when outdoor units defrost more often.

Comfort

Dry air outside (dew point 39°F).

Open the windows?

Today, 1:00 PM–5:00 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 5°3° warmer than typical.

Last 7 days vs normal

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

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

Sun & moon

Sun

Daylight: 10 h 45 min; Losing 2 min 35 s a day; shortest Dec 21, 1 h 31 min less
Golden hour: 5:48–6:44 PM; Morning 7:24–8:20 AM
Blue hour: 6:44–6:54 PM; Morning 7:14–7:24 AM; first light 7:14 AM

Stars tonight? Fair

Clear 6:54 PM–7:15 AM, but the moon is 99% lit and up.

Moon

Waxing gibbous

97% lit · growing

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

Looking west from Portersville. A level horizon.Skyline from USGS elevation data, heights drawn up to 6× taller. Sky, sun and moon as they are now.

Portersville, 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

Ohio River at Montgomery Lock and Dam

Muddy Creek above Portersville

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