Observed 7:50 AM EDT at KBTP

Unionville, PA weather

Foggy and 37°3°.

Forecasts agree

Now 37°3°

Fog

Wind: 3 mph5 km/h; From the north-northeast. Light through 8 PM
Visibility: 1.5 mi2.4 km; Fog · under 3 mi5 km
Dew point: 37°3°; Comfortable · up to 46°8° by 10 AM
Humidity: 100%; Air 37°3°, dew point 37°3° · fog or dew likely
UV index: 0Low; Moderate 11 AM–5 PM · peak 4
Pressure: 30.33 inHg1027 hPa; Rising · +0.05 inHg+1.6 hPa in 3 h

No precipitation expected in the next 2 hours.

From forecast models

Next 48 hours

Good hours for

Above 50°10° today by 11 AM
Drops 12°7° tonight 6–9 PM (58°14° → 46°8°)
Below 50°10° tonight after 8 PM
Drops 13°7° tomorrow night 6–9 PM (59°15° → 46°8°)
Below freezing Sunday from 6 AM (low 31°−1°)

This morningUp to 53°12° by 11 AM · Clear
This afternoonUp to 62°17° by 4 PM · Clear
TonightDown to 34°1° by 5 AM · Clear
Tomorrow morningUp to 53°12° by 11 AM · Clear
Tomorrow afternoonUp to 62°17° by 3 PM · Clear
Tomorrow nightDown to 34°1° by 4 AM · Clear

Hourly forecast, next 48 hours, in the place's local time
Hour	Conditions	Temperature	Feels like	Precipitation	Wind	Humidity	Cloud cover	UV index
Fri 8a	Sunny	41°5° (likely 37°3° to 42°6°)	41°5°	0%	2 mph3 km/h from NE, gusts 5 mph9 km/h	97%	13%	0
Fri 9a	Sunny	43°6° (likely 41°5° to 46°8°)	43°6°	0%	2 mph3 km/h from NE, gusts 5 mph8 km/h	100%	14%	0
Fri 10a	Sunny	48°9° (likely 48°9° to 51°11°)	48°9°	0%	3 mph5 km/h from E, gusts 9 mph14 km/h	93%	0%	1
Fri 11a	Sunny	53°12° (likely 53°12° to 56°13°)	53°12°	0%	3 mph5 km/h from E, gusts 10 mph15 km/h	79%	3%	3
Fri 12p	Sunny	56°13° (likely 56°13° to 59°15°)	56°13°	0%	3 mph5 km/h from E, gusts 9 mph14 km/h	68%	12%	3
Fri 1p	Sunny	59°15° (likely 58°14° to 60°16°)	59°15°	0%	3 mph5 km/h from E, gusts 9 mph14 km/h	59%	15%	4
Fri 2p	Mostly sunny	60°16° (likely 59°15° to 61°16°)	60°16°	0%	3 mph5 km/h from E, gusts 8 mph13 km/h	54%	22%	4
Fri 3p	Mostly sunny	61°16° (likely 60°16° to 62°17°)	61°16°	0%	3 mph5 km/h from E, gusts 7 mph12 km/h	50%	18%	4
Fri 4p	Sunny	62°17° (likely 60°16° to 62°17°)	62°17°	0%	3 mph5 km/h from E, gusts 8 mph12 km/h	47%	10%	3
Fri 5p	Sunny	61°16° (likely 60°16° to 61°16°)	61°16°	0%	2 mph3 km/h from E, gusts 7 mph11 km/h	47%	8%	2
Fri 6p	Clear	58°14° (likely 56°13° to 58°14°)	58°14°	0%	2 mph3 km/h from E, gusts 6 mph10 km/h	53%	5%	1
Fri 7p	Clear	53°12° (likely 51°11° to 53°12°)	53°12°	0%	2 mph3 km/h from E, gusts 6 mph9 km/h	62%	0%	0
Fri 8p	Clear	46°8° (likely 46°8° to 51°11°)	46°8°	0%	2 mph3 km/h from E, gusts 7 mph12 km/h	79%	0%	0
Fri 9p	Clear	44°7° (likely 44°7° to 49°9°)	44°7°	0%	2 mph3 km/h from E, gusts 7 mph11 km/h	85%	0%	0
Fri 10p	Clear	42°6° (likely 42°6° to 48°9°)	42°6°	0%	2 mph3 km/h from E, gusts 8 mph14 km/h	87%	0%	0
Fri 11p	Clear	40°4° (likely 40°4° to 47°8°)	38°3°	0%	3 mph5 km/h from E, gusts 8 mph13 km/h	90%	0%	0
Sat 12a	Clear	39°4° (likely 39°4° to 45°7°)	36°2°	0%	3 mph5 km/h from E, gusts 8 mph13 km/h	90%	0%	0
Sat 1a	Clear	38°3° (likely 38°3° to 45°7°)	35°2°	0%	3 mph5 km/h from E, gusts 9 mph14 km/h	94%	0%	0
Sat 2a	Clear	37°3° (likely 37°3° to 44°7°)	34°1°	0%	3 mph5 km/h from E, gusts 8 mph13 km/h	94%	0%	0
Sat 3a	Clear	36°2° (likely 36°2° to 43°6°)	33°1°	0%	3 mph5 km/h from E, gusts 7 mph12 km/h	95%	0%	0
Sat 4a	Clear	35°2° (likely 35°2° to 42°6°)	32°0°	0%	3 mph5 km/h from E, gusts 6 mph10 km/h	98%	0%	0
Sat 5a	Clear	34°1° (likely 34°1° to 41°5°)	31°−1°	0%	3 mph5 km/h from E, gusts 6 mph10 km/h	98%	0%	0
Sat 6a	Clear	34°1° (likely 34°1° to 41°5°)	30°−1°	0%	3 mph5 km/h from E, gusts 6 mph9 km/h	97%	0%	0
Sat 7a	Clear	34°1° (likely 34°1° to 40°4°)	30°−1°	0%	5 mph8 km/h from E, gusts 7 mph11 km/h	95%	0%	0
Sat 8a	Sunny	34°1° (likely 34°1° to 40°4°)	30°−1°	0%	5 mph8 km/h from E, gusts 7 mph11 km/h	98%	0%	0
Sat 9a	Sunny	37°3° (likely 37°3° to 44°7°)	34°1°	0%	5 mph8 km/h from E, gusts 6 mph10 km/h	98%	0%	0
Sat 10a	Sunny	46°8° (likely 46°8° to 49°9°)	45°7°	0%	3 mph5 km/h from E, gusts 11 mph17 km/h	83%	0%	1
Sat 11a	Sunny	53°12° (likely 52°11° to 53°12°)	53°12°	0%	5 mph8 km/h from SE, gusts 11 mph18 km/h	69%	0%	2
Sat 12p	Sunny	56°13° (likely 54°12° to 57°14°)	56°13°	0%	3 mph5 km/h from SE, gusts 9 mph14 km/h	61%	0%	3
Sat 1p	Sunny	60°16° (likely 57°14° to 60°16°)	60°16°	0%	3 mph5 km/h from SE, gusts 8 mph13 km/h	53%	0%	4
Sat 2p	Sunny	61°16° (likely 58°14° to 61°16°)	61°16°	0%	3 mph5 km/h from SE, gusts 7 mph11 km/h	49%	0%	4
Sat 3p	Sunny	62°17° (likely 60°16° to 62°17°)	62°17°	0%	2 mph3 km/h from SE, gusts 6 mph10 km/h	47%	0%	3
Sat 4p	Sunny	62°17° (likely 60°16° to 62°17°)	63°17°	0%	2 mph3 km/h from SE, gusts 7 mph11 km/h	46%	0%	3
Sat 5p	Sunny	62°17° (likely 59°15° to 62°17°)	62°17°	0%	2 mph3 km/h from SE, gusts 7 mph12 km/h	47%	0%	2
Sat 6p	Clear	59°15° (likely 55°13° to 59°15°)	59°15°	0%	1 mph2 km/h from SE, gusts 7 mph11 km/h	55%	0%	1
Sat 7p	Clear	54°12° (likely 50°10° to 54°12°)	54°12°	0%	1 mph2 km/h from E, gusts 6 mph10 km/h	65%	0%	0
Sat 8p	Clear	46°8° (likely 46°8° to 51°11°)	47°8°	0%	1 mph2 km/h from E, gusts 7 mph11 km/h	81%	0%	0
Sat 9p	Clear	44°7° (likely 44°7° to 47°8°)	44°7°	0%	2 mph3 km/h from E, gusts 7 mph12 km/h	84%	0%	0
Sat 10p	Clear	42°6° (likely 42°6° to 46°8°)	42°6°	0%	2 mph3 km/h from E, gusts 8 mph13 km/h	87%	0%	0
Sat 11p	Clear	41°5° (likely 41°5° to 45°7°)	38°3°	0%	3 mph5 km/h from E, gusts 8 mph13 km/h	88%	0%	0
Sun 12a	Clear	39°4° (likely 39°4° to 44°7°)	37°3°	0%	3 mph5 km/h from E, gusts 8 mph12 km/h	90%	0%	0
Sun 1a	Clear	38°3° (likely 38°3° to 43°6°)	36°2°	0%	3 mph5 km/h from SE, gusts 7 mph11 km/h	91%	0%	0
Sun 2a	Clear	37°3° (likely 37°3° to 42°6°)	37°3°	0%	2 mph3 km/h from SE, gusts 5 mph8 km/h	93%	0%	0
Sun 3a	Clear	36°2° (likely 36°2° to 42°6°)	36°2°	0%	2 mph3 km/h from SE, gusts 4 mph7 km/h	95%	0%	0
Sun 4a	Clear	34°1° (likely 34°1° to 42°6°)	35°2°	0%	2 mph3 km/h from E, gusts 4 mph6 km/h	97%	0%	0
Sun 5a	Clear	34°1° (likely 34°1° to 42°6°)	34°1°	0%	2 mph3 km/h from E, gusts 3 mph5 km/h	98%	0%	0
Sun 6a	Clear	32°0° (likely 32°0° to 41°5°)	32°0°	0%	2 mph3 km/h from E, gusts 3 mph5 km/h	100%	0%	0
Sun 7a	Clear	31°−1° (likely 31°−1° to 41°5°)	31°−1°	0%	2 mph3 km/h from E, gusts 3 mph5 km/h	100%	0%	0

Days ahead

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

Today, Oct 23. Mostly sunny. High 62°17°, low 33°1°. Typical 59°15° / 37°3°. Dry. Forecasts agree.
1. Morning
  6 AM–noon
  Sunny, 41°5°
  Dry
2. Afternoon
  noon–6 PM
  Mostly sunny, 62°17°
  Dry
3. Evening
  6 PM–midnight
  Clear, 46°8°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 34°1°
  Dry
Official NWS forecast
Today: Sunny, with a high near 62. East wind around 3 mph.
Tonight: Patchy frost after 3am. Clear, with a low around 33. East wind around 3 mph.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
60°16°–62°17°
Low, likely
33°1°–41°5°
Typical high / low
59°15° / 37°3°
Wind
7 mph10 km/h, gusts 15 mph24 km/h
UV peak
4
Tomorrow, Oct 24. Sunny. High 63°17°, low 31°−1°. Typical 58°14° / 37°3°. Dry. Forecasts agree.
1. Morning
  6 AM–noon
  Sunny, 34°1°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 62°17°
  Dry
3. Evening
  6 PM–midnight
  Clear, 46°8°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 34°1°
  Dry
Official NWS forecast
Day: Patchy frost before 9am. Sunny, with a high near 63. Southeast wind around 5 mph.
Night: Patchy frost after 2am. Clear, with a low around 31. East wind around 3 mph.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
60°16°–63°17°
Low, likely
31°−1°–40°4°
Typical high / low
58°14° / 37°3°
Wind
7 mph11 km/h, gusts 13 mph20 km/h
UV peak
4
Sunday, Oct 25. Sunny. High 65°18°, low 35°2°. Typical 58°14° / 36°2°. Dry. Forecasts agree.
1. Morning
  6 AM–noon
  Sunny, 38°3°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 62°17°
  Dry
3. Evening
  6 PM–midnight
  Clear, 49°10°
  Dry
4. Overnight
  midnight–6 AM
  Partly cloudy, 40°5°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Areas of frost before 9am. Sunny, with a high near 65. Southeast wind around 3 mph.
Night: Mostly clear, with a low around 35.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
62°17°–65°18°
Low, likely
35°2°–40°4°
Typical high / low
58°14° / 36°2°
Wind
7 mph11 km/h, gusts 12 mph20 km/h
UV peak
4
Monday, Oct 26. Mostly sunny. High 68°20°, low 39°4°. Typical 57°14° / 36°2°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 40°4°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 65°19°
  Dry
3. Evening
  6 PM–midnight
  Clear, 53°12°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 45°7°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Patchy frost between 7am and 8am. Sunny, with a high near 68.
Night: Partly cloudy, with a low around 39.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
65°18°–68°20°
Low, likely
36°2°–43°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 64°18°, low 39°4°. Typical 57°14° / 36°2°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Mostly sunny, 45°7°
  Dry
2. Afternoon
  noon–6 PM
  Mostly sunny, 64°18°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 54°12°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 48°9°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly sunny, with a high near 64.
Night: Mostly cloudy, with a low around 39.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
63°17°–66°19°
Low, likely
39°4°–46°8°
Typical high / low
57°14° / 36°2°
Wind
6 mph9 km/h, gusts 13 mph21 km/h
UV peak
4
Wednesday, Oct 28. Cloudy. High 65°18°, low 40°4°. Typical 57°14° / 36°2°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Cloudy, 49°9°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 64°18°
  Dry
3. Evening
  6 PM–midnight
  Partly cloudy, 56°13°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 47°8°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Partly sunny, with a high near 65.
Night: Partly cloudy, with a low around 40.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
63°17°–67°19°
Low, likely
40°4°–49°9°
Typical high / low
57°14° / 36°2°
Wind
9 mph15 km/h, gusts 16 mph25 km/h
UV peak
2
Thursday, Oct 29. Partly sunny. High 68°20°, low 42°6°. Typical 56°13° / 35°2°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 46°8°
  Dry
2. Afternoon
  noon–6 PM
  Partly sunny, 66°19°
  Dry
3. Evening
  6 PM–midnight
  Clear, 54°12°
  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 68.
Night: Partly cloudy, with a low around 42.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
65°18°–69°21°
Low, likely
42°6°–50°10°
Typical high / low
56°13° / 35°2°
Wind
11 mph17 km/h, gusts 23 mph37 km/h
UV peak
4
Friday, Oct 30. Cloudy. High 62°17°, low 47°8°. Typical 56°13° / 35°2°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 47°8°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 61°16°
  Dry
3. Evening
  6 PM–midnight
  Clear, 52°11°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 45°7°
  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
56°13°–67°19°
Low, likely
44°7°–48°9°
Typical high / low
56°13° / 35°2°
Wind
8 mph13 km/h, gusts 19 mph30 km/h
UV peak
3
Saturday, Oct 31. Drizzle. High 57°14°, low 44°7°. Typical 55°13° / 35°2°. Rain 0.07 in1.8 mm, 10% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Drizzle, 43°6°
  Dry
2. Afternoon
  noon–6 PM
  Drizzle, 54°12°
  Dry
3. Evening
  6 PM–midnight
  Drizzle, 48°9°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 44°6°
  20% chance · 0.06 in1.6 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
48°9°–67°19°
Low, likely
35°2°–54°12°
Typical high / low
55°13° / 35°2°
Wind
9 mph14 km/h, gusts 22 mph35 km/h
UV peak
1
Sunday, Nov 1. Showers. High 62°17°, low 47°8°. Typical 55°13° / 34°1°. Rain 0.38 in9.7 mm, 40% chance. Mostly agree.
1. Morning
  6 AM–noon
  Rain, 44°7°
  30% chance · 0.12 in3 mm
2. Afternoon
  noon–6 PM
  Showers, 58°14°
  40% chance · 0.07 in1.8 mm
3. Evening
  6 PM–midnight
  Drizzle, 52°11°
  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
58°14°–65°18°
Low, likely
34°1°–56°13°
Typical high / low
55°13° / 34°1°
Wind
13 mph21 km/h, gusts 30 mph48 km/h
UV peak
1

10 days15 days30 days

The outlook

Today
Dry, high 62°, low 33°.
Tomorrow
Dry, high 63°, low 31°.
Sunday
Dry, high 65°, low 35°.
Rest of week
Highs 57–68°; chance of precipitation on Sunday.

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

Allegheny River at Parker

18 mi

Below flood stage

Level: 2.6 ft
Flow: 4,660 cfs

Forecast peak 2.6 ft Fri 2 PM

Reading from Fri 8 AM · NWS gauge page

Beaver River near Beaver Falls

22 mi

Below flood stage

Level: 5.0 ft
Flow: 1,330 cfs

Forecast peak 4.9 ft Fri 2 PM

Reading from Fri 7:15 AM · NWS gauge page

Allegheny River at Freeport Lock and Dam

24 mi

Below flood stage

Level: 9.8 ft
Flow: 3,320 cfs

Forecast peak 9.8 ft Fri 2 PM

Reading from Fri 7:30 AM · NWS gauge page

Allegheny River at Kittanning Lock and Dam

24 mi

Below flood stage

Level: 10.5 ft
Flow: 5,400 cfs

Forecast peak 10.6 ft Fri 2 PM

Reading from Fri 7 AM · NWS gauge page

For your home

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

Heating this week

About 71% less heating than a typical week.

This week 37Typical 128

Heating degree days, base 65°F

Heat-pump hours, next 7 days

h below 47°F: 28
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 22 hours are near freezing and damp, when outdoor units defrost more often.

Comfort

Dry air outside (dew point 37°F).

Open the windows?

Today, 2:00 PM–5:00 PM

Good stretch to open the windows (air quality forecast not available for part of this window).

Is this typical?

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

Oct 23, today vs a typical year

Today’s expected high is 3°2° warmer than typical.

Last 7 days vs normal

—SatOct 17
—SunOct 18
—MonOct 19
—TueOct 20
—WedOct 21
—ThuOct 22
—FriOct 23

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

Sun & moon

Sun

Daylight: 10 h 47 min; Losing 2 min 30 s a day; shortest Dec 21, 1 h 33 min less
Golden hour: 5:49–6:44 PM; Morning 7:23–8:18 AM
Blue hour: 6:44–6:55 PM; Morning 7:12–7:23 AM; first light 7:12 AM

Stars tonight? Good

Clear 6:55 PM–7:13 AM; moon 95% lit, sets 5:53 AM.

Moon

Waxing gibbous

91% lit · growing

Today: sets 4:44 AM · rises 4:59 PM
Full moon: Oct 26
New moon: Nov 9

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

Unionville, PA weather

Next 2 hours

Next 48 hours

Days ahead

The outlook

Today

Tomorrow

Sunday

Rest of week

What changed since yesterday

Radar

Rivers

Allegheny River at Parker

Beaver River near Beaver Falls

Allegheny River at Freeport Lock and Dam

Allegheny River at Kittanning Lock and Dam

For your home

Heating this week

Heat-pump hours, next 7 days

Comfort

Open the windows?

Is this typical?

Oct 23, today vs a typical year

Last 7 days vs normal

Sun & moon

Sun

Stars tonight? Good

Moon