Observed 2:20 PM EDT at KAFJ

Clarksville, PA weather

Sunny and 64°18°, jacket by 8 PM.

Forecasts agree

Now 64°18°

Sunny

Wind: 3 mph5 km/h; From the east-northeast. Up to 6 mph10 km/h through 3 AM
Dew point: 45°7°; Comfortable
UV index: 3Moderate; Moderate until 5 PM · peak 4
Air quality: 38Good; Main pollutant: Ozone
Pressure: 30.36 inHg1028 hPa; Falling slowly · −0.03 inHg−1.1 hPa in 3 h

No precipitation expected in the next 2 hours.

From forecast models

Next 48 hours

Good hours for

Below 50°10° tonight after 9 PM
Low 37°3° tomorrow at 7 AM
Above 50°10° tomorrow by 11 AM

This afternoonNear 63°17° · Clear
TonightDown to 38°3° by 5 AM · Clear
Tomorrow morningUp to 54°12° by 11 AM · Clear
Tomorrow afternoonUp to 66°19° by 4 PM · Clear
Tomorrow nightDown to 37°3° by 5 AM · Clear
Sunday morningUp to 54°12° by 11 AM · Clear
Sunday afternoonUp to 65°18° by 2 PM · 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 3p	Sunny	63°17° (likely 63°17° to 65°18°)	63°17°	0%	6 mph10 km/h from NE, gusts 10 mph16 km/h	55%	11%	4
Fri 4p	Sunny	63°17° (likely 62°17° to 65°18°)	63°17°	0%	6 mph10 km/h from NE, gusts 10 mph16 km/h	52%	8%	3
Fri 5p	Sunny	63°17° (likely 61°16° to 64°18°)	63°17°	0%	6 mph10 km/h from NE, gusts 10 mph17 km/h	52%	5%	2
Fri 6p	Clear	61°16° (likely 58°14° to 61°16°)	61°16°	0%	5 mph8 km/h from NE, gusts 9 mph15 km/h	54%	0%	1
Fri 7p	Clear	57°14° (likely 53°12° to 57°14°)	57°14°	0%	5 mph8 km/h from NE, gusts 8 mph13 km/h	63%	2%	0
Fri 8p	Clear	51°11° (likely 50°10° to 52°11°)	51°11°	0%	3 mph5 km/h from NE, gusts 7 mph12 km/h	76%	1%	0
Fri 9p	Clear	48°9° (likely 48°9° to 50°10°)	47°8°	0%	3 mph5 km/h from NE, gusts 7 mph12 km/h	84%	0%	0
Fri 10p	Clear	46°8° (likely 46°8° to 48°9°)	46°8°	0%	2 mph3 km/h from E, gusts 6 mph9 km/h	90%	0%	0
Fri 11p	Clear	44°7° (likely 44°7° to 47°8°)	44°7°	0%	2 mph3 km/h from E, gusts 5 mph9 km/h	96%	0%	0
Sat 12a	Clear	43°6° (likely 43°6° to 46°8°)	43°6°	0%	2 mph3 km/h from E, gusts 4 mph7 km/h	100%	0%	0
Sat 1a	Clear	42°6° (likely 42°6° to 46°8°)	42°6°	0%	1 mph2 km/h from E, gusts 3 mph6 km/h	100%	0%	0
Sat 2a	Clear	41°5° (likely 41°5° to 45°7°)	41°5°	0%	1 mph2 km/h from E, gusts 3 mph5 km/h	100%	0%	0
Sat 3a	Clear	40°4° (likely 40°4° to 45°7°)	40°4°	0%	1 mph2 km/h from E, gusts 3 mph4 km/h	100%	0%	0
Sat 4a	Clear	39°4° (likely 39°4° to 44°7°)	39°4°	0%	0 mph0 km/h, gusts 3 mph4 km/h	100%	0%	0
Sat 5a	Clear	38°3° (likely 38°3° to 43°6°)	38°3°	0%	0 mph0 km/h, gusts 2 mph4 km/h	100%	0%	0
Sat 6a	Clear	38°3° (likely 38°3° to 42°6°)	38°3°	0%	0 mph0 km/h, gusts 3 mph4 km/h	100%	0%	0
Sat 7a	Clear	37°3° (likely 37°3° to 42°6°)	37°3°	0%	0 mph0 km/h, gusts 3 mph4 km/h	100%	10%	0
Sat 8a	Sunny	37°3° (likely 36°2° to 42°6°)	37°3°	0%	0 mph0 km/h, gusts 3 mph5 km/h	99%	12%	0
Sat 9a	Sunny	40°4° (likely 39°4° to 45°7°)	40°4°	0%	0 mph0 km/h, gusts 2 mph3 km/h	100%	13%	0
Sat 10a	Sunny	47°8° (likely 47°8° to 51°11°)	47°8°	0%	0 mph0 km/h, gusts 8 mph12 km/h	93%	7%	1
Sat 11a	Sunny	54°12° (likely 54°12° to 58°14°)	54°12°	0%	1 mph2 km/h from SE, gusts 7 mph12 km/h	76%	9%	3
Sat 12p	Sunny	59°15° (likely 59°15° to 61°16°)	59°15°	0%	1 mph2 km/h from SE, gusts 6 mph9 km/h	64%	10%	4
Sat 1p	Sunny	63°17° (likely 61°16° to 64°18°)	63°17°	0%	1 mph2 km/h from E, gusts 4 mph6 km/h	56%	10%	4
Sat 2p	Sunny	65°18° (likely 63°17° to 65°18°)	65°18°	0%	1 mph2 km/h from E, gusts 4 mph6 km/h	52%	8%	4
Sat 3p	Sunny	65°18° (likely 64°18° to 65°18°)	65°18°	0%	1 mph2 km/h from E, gusts 4 mph6 km/h	51%	6%	4
Sat 4p	Sunny	66°19° (likely 64°18° to 66°19°)	66°19°	0%	2 mph3 km/h from E, gusts 6 mph9 km/h	48%	6%	3
Sat 5p	Sunny	65°18° (likely 63°17° to 65°18°)	65°18°	0%	2 mph3 km/h from E, gusts 6 mph9 km/h	50%	4%	2
Sat 6p	Clear	62°17° (likely 59°15° to 62°17°)	62°17°	0%	2 mph3 km/h from NE, gusts 6 mph9 km/h	54%	0%	1
Sat 7p	Clear	58°14° (likely 55°13° to 58°14°)	58°14°	0%	3 mph5 km/h from E, gusts 6 mph9 km/h	61%	0%	0
Sat 8p	Clear	52°11° (likely 52°11° to 54°12°)	52°11°	0%	3 mph5 km/h from E, gusts 6 mph10 km/h	75%	11%	0
Sat 9p	Clear	49°9° (likely 48°9° to 51°11°)	49°9°	0%	2 mph3 km/h from E, gusts 6 mph10 km/h	83%	3%	0
Sat 10p	Clear	46°8° (likely 46°8° to 49°9°)	46°8°	0%	2 mph3 km/h from E, gusts 7 mph11 km/h	87%	0%	0
Sat 11p	Clear	44°7° (likely 44°7° to 48°9°)	44°7°	0%	2 mph3 km/h from E, gusts 6 mph10 km/h	93%	0%	0
Sun 12a	Clear	43°6° (likely 43°6° to 46°8°)	43°6°	0%	1 mph2 km/h from E, gusts 5 mph8 km/h	96%	0%	0
Sun 1a	Clear	42°6° (likely 42°6° to 46°8°)	42°6°	0%	0 mph0 km/h, gusts 4 mph6 km/h	97%	0%	0
Sun 2a	Clear	40°4° (likely 40°4° to 45°7°)	41°5°	0%	0 mph0 km/h, gusts 3 mph5 km/h	99%	0%	0
Sun 3a	Clear	40°4° (likely 40°4° to 44°7°)	40°4°	0%	0 mph0 km/h, gusts 3 mph4 km/h	99%	0%	0
Sun 4a	Clear	39°4° (likely 39°4° to 43°6°)	39°4°	0%	0 mph0 km/h, gusts 2 mph3 km/h	100%	0%	0
Sun 5a	Clear	37°3° (likely 37°3° to 42°6°)	37°3°	0%	0 mph0 km/h, gusts 2 mph4 km/h	100%	0%	0
Sun 6a	Clear	37°3° (likely 37°3° to 40°4°)	37°3°	0%	0 mph0 km/h, gusts 2 mph3 km/h	100%	0%	0
Sun 7a	Clear	37°3° (likely 35°2° to 40°4°)	37°3°	0%	0 mph0 km/h, gusts 2 mph3 km/h	100%	8%	0
Sun 8a	Sunny	36°2° (likely 34°1° to 40°4°)	36°2°	0%	0 mph0 km/h, gusts 2 mph3 km/h	99%	11%	0
Sun 9a	Sunny	39°4° (likely 35°2° to 47°8°)	39°4°	0%	0 mph0 km/h, gusts 2 mph4 km/h	100%	17%	0
Sun 10a	Sunny	46°8° (likely 45°7° to 53°12°)	46°8°	0%	0 mph0 km/h, gusts 3 mph5 km/h	90%	1%	1
Sun 11a	Sunny	54°12° (likely 52°11° to 58°14°)	54°12°	0%	1 mph2 km/h from S, gusts 5 mph7 km/h	73%	0%	3
Sun 12p	Sunny	60°16° (likely 58°14° to 62°17°)	60°16°	0%	0 mph0 km/h, gusts 6 mph9 km/h	62%	0%	4
Sun 1p	Sunny	63°17° (likely 61°16° to 65°18°)	63°17°	0%	0 mph0 km/h, gusts 5 mph8 km/h	54%	0%	4
Sun 2p	Sunny	65°18° (likely 63°17° to 66°19°)	65°18°	0%	0 mph0 km/h, gusts 3 mph5 km/h	49%	0%	4

Days ahead

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

Today, Oct 23. Sunny. High 63°17°, low 37°3°. Typical 62°17° / 37°3°. Dry. Forecasts agree.
1. Afternoon
  noon–6 PM
  Sunny, 63°17°
  Dry
2. Evening
  6 PM–midnight
  Clear, 51°11°
  Dry
3. Overnight
  midnight–6 AM
  Clear, 38°3°
  Dry
Official NWS forecast
Today: Sunny, with a high near 63. Northeast wind around 6 mph.
Tonight: Clear, with a low around 37. Northeast wind 0 to 5 mph.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
63°17°–65°18°
Low, likely
37°3°–40°4°
Typical high / low
62°17° / 37°3°
Wind
8 mph13 km/h, gusts 16 mph25 km/h
UV peak
4
Tomorrow, Oct 24. Sunny. High 66°19°, low 36°2°. Typical 62°17° / 36°2°. Dry. Forecasts agree.
1. Morning
  6 AM–noon
  Sunny, 37°3°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 66°19°
  Dry
3. Evening
  6 PM–midnight
  Clear, 52°11°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 37°3°
  Dry
Official NWS forecast
Day: Sunny, with a high near 66. East wind around 2 mph.
Night: Mostly clear, with a low around 36. East wind 0 to 3 mph.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
64°18°–66°19°
Low, likely
36°2°–41°5°
Typical high / low
62°17° / 36°2°
Wind
7 mph11 km/h, gusts 13 mph21 km/h
UV peak
4
Sunday, Oct 25. Mostly sunny. High 67°19°, low 37°3°. Typical 62°17° / 36°2°. Dry. Forecasts agree.
1. Morning
  6 AM–noon
  Sunny, 36°2°
  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, 41°5°
  Dry
Official NWS forecast
Day: Patchy frost before 9am. Sunny, with a high near 67. East wind around 1 mph.
Night: Mostly clear, with a low around 37.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
64°18°–67°19°
Low, likely
34°1°–40°4°
Typical high / low
62°17° / 36°2°
Wind
5 mph8 km/h
UV peak
4
Monday, Oct 26. Mostly sunny. High 69°21°, low 42°6°. Typical 61°16° / 36°2°. Dry. Forecasts agree.
1. Morning
  6 AM–noon
  Sunny, 39°4°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 67°19°
  Dry
3. Evening
  6 PM–midnight
  Clear, 54°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 69.
Night: Mostly clear, with a low around 42.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
67°19°–69°21°
Low, likely
35°2°–43°6°
Typical high / low
61°16° / 36°2°
Wind
5 mph8 km/h, gusts 12 mph19 km/h
UV peak
4
Tuesday, Oct 27. Partly sunny. High 67°19°, low 43°6°. Typical 61°16° / 35°2°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Mostly sunny, 43°6°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 67°19°
  Dry
3. Evening
  6 PM–midnight
  Mostly clear, 56°13°
  Dry
4. Overnight
  midnight–6 AM
  Mostly clear, 47°8°
  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 43.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
65°18°–69°21°
Low, likely
40°4°–46°8°
Typical high / low
61°16° / 35°2°
Wind
6 mph10 km/h, gusts 11 mph18 km/h
UV peak
4
Wednesday, Oct 28. Cloudy. High 69°21°, low 45°7°. Typical 61°16° / 35°2°. Dry. Forecasts agree.
1. Morning
  6 AM–noon
  Cloudy, 47°8°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 68°20°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 57°14°
  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 69.
Night: Partly cloudy, with a low around 45.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
67°19°–70°21°
Low, likely
44°7°–49°9°
Typical high / low
61°16° / 35°2°
Wind
9 mph14 km/h, gusts 14 mph22 km/h
UV peak
3
Thursday, Oct 29. Partly sunny. High 71°22°, low 45°7°. Typical 60°16° / 35°2°. Dry. Forecasts agree.
1. Morning
  6 AM–noon
  Sunny, 48°9°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 70°21°
  Dry
3. Evening
  6 PM–midnight
  Clear, 57°14°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 47°8°
  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 agreeIndependent forecasts are close; the range is narrow.
High, likely
70°21°–71°22°
Low, likely
42°6°–50°10°
Typical high / low
60°16° / 35°2°
Wind
12 mph19 km/h, gusts 25 mph40 km/h
UV peak
4
Friday, Oct 30. Cloudy. High 68°20°, low 46°8°. Typical 60°16° / 34°1°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Sunny, 45°7°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 66°19°
  Dry
3. Evening
  6 PM–midnight
  Clear, 55°13°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 47°8°
  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
60°16°–72°22°
Low, likely
44°7°–47°8°
Typical high / low
60°16° / 34°1°
Wind
8 mph13 km/h, gusts 18 mph29 km/h
UV peak
3
Saturday, Oct 31. Cloudy. High 65°18°, low 45°7°. Typical 59°15° / 34°1°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 45°7°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 63°17°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 55°13°
  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
50°10°–71°22°
Low, likely
38°3°–52°11°
Typical high / low
59°15° / 34°1°
Wind
8 mph13 km/h, gusts 17 mph27 km/h
UV peak
3
Sunday, Nov 1. Drizzle. High 65°18°, low 50°10°. Typical 59°15° / 34°1°. Rain 0.13 in3.3 mm, 30% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Drizzle, 51°10°
  30% chance · 0.06 in1.6 mm
2. Afternoon
  noon–6 PM
  Drizzle, 63°17°
  30% chance · 0.02 in0.5 mm
3. Evening
  6 PM–midnight
  Cloudy, 59°15°
  30% chance
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
59°15°–70°21°
Low, likely
34°1°–57°14°
Typical high / low
59°15° / 34°1°
Wind
8 mph13 km/h, gusts 21 mph33 km/h

10 days15 days30 days

The outlook

Today
Dry, high 63°, low 37°.
Tomorrow
Dry, high 66°, low 36°, warming up.
Sunday
Dry, high 67°, low 37°.
Rest of week
Mostly dry, highs 65–71°.

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

Monongahela River at Maxwell Lock and Dam (lower pool)

4.8 mi

Below flood stage

Level: 10.5 ft
Flow: 8,720 cfs

Forecast peak 10.5 ft Fri 8 PM

Reading from Fri 1:30 PM · NWS gauge page

Monongahela River at Grays Landing Lock and Dam

12 mi

Below flood stage

Level: 11.9 ft
Flow: 9,420 cfs

Forecast peak 11.9 ft Fri 8 PM

Reading from Fri 2:16 PM · NWS gauge page

Monongahela River at Charleroi Lock and Dam

14 mi

Below flood stage

Level: 8.7 ft

Forecast peak 8.8 ft Fri 8 PM

Reading from Fri 2 PM · NWS gauge page

Monongahela River at Point Marion Lock and Dam (lower pool)

19 mi

Below flood stage

Level: 12.2 ft
Flow: 9,490 cfs

Forecast peak 12.1 ft Fri 8 PM

Reading from Fri 1:15 PM · NWS gauge page

For your home

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

Heating this week

About 73% less heating than a typical week.

This week 32Typical 116

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 18 hours are near freezing and damp, when outdoor units defrost more often.

Comfort

Dry air outside (dew point 45°F).

Open the windows?

Today, 4:00 PM–6:00 PM

Good stretch to open the windows.

Is this typical?

Waynesburg 1 E · official normals 1991–2020 · records 1948–2026

Oct 23, today vs a typical year

Today’s expected high is about typical for the date.

Last 7 days vs normal

On average 2°1° colder than normal (daily mean temperature).

+9°+5°SatOct 17
−10°−6°SunOct 18
−4°−2°MonOct 19
−2°−1°TueOct 20
−1°WedOct 21
—ThuOct 22
—FriOct 23

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

Sun & moon

Sun

Daylight: 10 h 50 min; Losing 2 min 30 s a day; shortest Dec 21, 1 h 30 min less
Golden hour: 5:51–6:46 PM; Morning 7:22–8:16 AM
Blue hour: 6:46–6:56 PM; Morning 7:11–7:22 AM; first light 7:11 AM

Stars tonight? Good

Clear 6:56 PM–7:12 AM; moon 95% lit, sets 5:52 AM.

Moon

Waxing gibbous

93% lit · growing

Today: sets 4:44 AM · rises 5:00 PM
Full moon: Oct 26
New moon: Nov 9

Looking southeast from Clarksville.Skyline from USGS elevation data, heights drawn up to 4.5× taller. Sky, sun and moon as they are now.

Clarksville, PA weather

Next 2 hours

Next 48 hours

Days ahead

The outlook

Today

Tomorrow

Sunday

Rest of week

What changed since yesterday

Radar

Rivers

Monongahela River at Maxwell Lock and Dam (lower pool)

Monongahela River at Grays Landing Lock and Dam

Monongahela River at Charleroi Lock and Dam

Monongahela River at Point Marion Lock and Dam (lower pool)

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