Observed 10:40 AM EDT at KCXY

Duncannon, PA weather

Sunny and 50°10°.

Forecasts agree

Now 50°10°

Sunny

Wind: Calm; Light through 11 PM
Dew point: 39°4°; Comfortable
UV index: 2Low; Moderate 12–3 PM · peak 3
Pressure: 30.58 inHg1036 hPa; Steady over the last 3 h

No precipitation expected in the next 2 hours.

From forecast models

Next 48 hours

7°4° cooler than this time yesterday (54°12° then, 47°8° now)

Good hours for

Below 50°10° tonight after 9 PM
Above 50°10° tomorrow by 11 AM
Fog tomorrow night 11 PM–1 AM
Fog tomorrow night 2–3 AM
Fog Monday 6–10 AM

This afternoonUp to 61°16° by 5 PM · Clear
TonightDown to 35°2° by 5 AM · Clear
Tomorrow morningUp to 52°11° by 11 AM · Clear
Tomorrow afternoonUp to 64°18° by 5 PM · Clear
Tomorrow nightDown to 37°3° by 4 AM · Clear
Monday morningUp to 47°8° by 10 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 11a	Sunny	49°9° (likely 49°9° to 53°12°)	49°9°	0%	0 mph0 km/h, gusts 3 mph5 km/h	65%	2%	2
Sat 12p	Sunny	54°12° (likely 53°12° to 57°14°)	54°12°	0%	0 mph0 km/h, gusts 5 mph7 km/h	53%	1%	3
Sat 1p	Sunny	57°14° (likely 57°14° to 59°15°)	57°14°	0%	1 mph2 km/h from SE, gusts 7 mph11 km/h	46%	1%	3
Sat 2p	Sunny	59°15° (likely 58°14° to 60°16°)	59°15°	0%	1 mph2 km/h from S, gusts 6 mph10 km/h	41%	0%	3
Sat 3p	Sunny	60°16° (likely 59°15° to 60°16°)	60°16°	0%	1 mph2 km/h from S, gusts 6 mph9 km/h	40%	0%	2
Sat 4p	Sunny	60°16° (likely 59°15° to 60°16°)	60°16°	0%	1 mph2 km/h from S, gusts 6 mph10 km/h	41%	0%	1
Sat 5p	Sunny	61°16° (likely 57°14° to 61°16°)	61°16°	0%	1 mph2 km/h from SE, gusts 6 mph9 km/h	40%	0%	0
Sat 6p	Clear	58°14° (likely 53°12° to 58°14°)	58°14°	0%	1 mph2 km/h from SE, gusts 5 mph8 km/h	45%	0%	0
Sat 7p	Clear	52°11° (likely 49°9° to 52°11°)	52°11°	0%	1 mph2 km/h from SE, gusts 5 mph8 km/h	57%	0%	0
Sat 8p	Clear	50°10° (likely 46°8° to 50°10°)	50°10°	0%	0 mph0 km/h, gusts 4 mph6 km/h	63%	0%	0
Sat 9p	Clear	45°7° (likely 44°7° to 49°9°)	45°7°	0%	0 mph0 km/h, gusts 3 mph5 km/h	73%	0%	0
Sat 10p	Clear	43°6° (likely 43°6° to 48°9°)	43°6°	0%	0 mph0 km/h, gusts 3 mph5 km/h	79%	0%	0
Sat 11p	Clear	41°5° (likely 41°5° to 47°8°)	41°5°	0%	0 mph0 km/h, gusts 3 mph5 km/h	85%	0%	0
Sun 12a	Clear	39°4° (likely 39°4° to 46°8°)	39°4°	0%	0 mph0 km/h, gusts 3 mph5 km/h	92%	0%	0
Sun 1a	Clear	38°3° (likely 38°3° to 44°7°)	38°3°	0%	0 mph0 km/h, gusts 3 mph4 km/h	96%	0%	0
Sun 2a	Clear	37°3° (likely 37°3° to 43°6°)	37°3°	0%	0 mph0 km/h, gusts 3 mph5 km/h	100%	0%	0
Sun 3a	Clear	36°2° (likely 36°2° to 42°6°)	36°2°	0%	0 mph0 km/h, gusts 3 mph5 km/h	100%	0%	0
Sun 4a	Clear	36°2° (likely 36°2° to 41°5°)	36°2°	0%	0 mph0 km/h, gusts 3 mph5 km/h	100%	12%	0
Sun 5a	Clear	35°2° (likely 35°2° to 41°5°)	35°2°	0%	0 mph0 km/h, gusts 3 mph4 km/h	100%	12%	0
Sun 6a	Clear	35°2° (likely 35°2° to 40°4°)	35°2°	0%	0 mph0 km/h, gusts 2 mph3 km/h	100%	13%	0
Sun 7a	Sunny	34°1° (likely 34°1° to 40°4°)	34°1°	0%	0 mph0 km/h, gusts 1 mph2 km/h	100%	13%	0
Sun 8a	Sunny	33°1° (likely 33°1° to 39°4°)	33°1°	0%	0 mph0 km/h, gusts 1 mph2 km/h	100%	12%	0
Sun 9a	Sunny	38°3° (likely 38°3° to 43°6°)	38°3°	0%	0 mph0 km/h, gusts 2 mph3 km/h	100%	13%	1
Sun 10a	Sunny	46°8° (likely 46°8° to 50°10°)	46°8°	0%	0 mph0 km/h, gusts 3 mph5 km/h	89%	1%	2
Sun 11a	Sunny	52°11° (likely 52°11° to 55°13°)	52°11°	0%	0 mph0 km/h, gusts 5 mph8 km/h	74%	2%	3
Sun 12p	Sunny	56°13° (likely 56°13° to 58°14°)	56°13°	0%	0 mph0 km/h, gusts 6 mph10 km/h	64%	2%	4
Sun 1p	Sunny	59°15° (likely 59°15° to 60°16°)	59°15°	0%	1 mph2 km/h from SW, gusts 7 mph11 km/h	57%	1%	4
Sun 2p	Sunny	61°16° (likely 60°16° to 61°16°)	61°16°	0%	2 mph3 km/h from S, gusts 7 mph12 km/h	56%	2%	4
Sun 3p	Sunny	62°17° (likely 61°16° to 62°17°)	62°17°	0%	1 mph2 km/h from S, gusts 8 mph13 km/h	52%	4%	3
Sun 4p	Sunny	63°17° (likely 61°16° to 63°17°)	63°17°	0%	1 mph2 km/h from S, gusts 8 mph12 km/h	50%	3%	2
Sun 5p	Sunny	64°18° (likely 60°16° to 64°18°)	64°18°	0%	1 mph2 km/h from S, gusts 7 mph11 km/h	48%	0%	1
Sun 6p	Clear	60°16° (likely 55°13° to 60°16°)	60°16°	0%	1 mph2 km/h from S, gusts 5 mph9 km/h	58%	0%	0
Sun 7p	Clear	55°13° (likely 51°11° to 55°13°)	55°13°	0%	0 mph0 km/h, gusts 3 mph5 km/h	66%	1%	0
Sun 8p	Clear	52°11° (likely 48°9° to 53°12°)	52°11°	0%	0 mph0 km/h, gusts 4 mph6 km/h	74%	0%	0
Sun 9p	Clear	47°8° (likely 46°8° to 50°10°)	47°8°	0%	0 mph0 km/h, gusts 4 mph6 km/h	86%	0%	0
Sun 10p	Clear	44°7° (likely 44°7° to 48°9°)	44°7°	0%	0 mph0 km/h, gusts 4 mph6 km/h	93%	1%	0
Sun 11p	Fog	42°6° (likely 41°5° to 47°8°)	42°6°	0%	0 mph0 km/h, gusts 4 mph7 km/h	100%	37%	0
Mon 12a	Fog	41°5° (likely 40°4° to 46°8°)	41°5°	0%	0 mph0 km/h, gusts 4 mph6 km/h	100%	47%	0
Mon 1a	Clear	40°4° (likely 38°3° to 45°7°)	40°4°	0%	0 mph0 km/h, gusts 3 mph5 km/h	100%	6%	0
Mon 2a	Fog	39°4° (likely 36°2° to 44°7°)	39°4°	0%	0 mph0 km/h, gusts 2 mph4 km/h	100%	24%	0
Mon 3a	Clear	38°3° (likely 34°1° to 44°7°)	38°3°	0%	0 mph0 km/h, gusts 2 mph3 km/h	100%	15%	0
Mon 4a	Clear	37°3° (likely 34°1° to 42°6°)	37°3°	0%	0 mph0 km/h, gusts 2 mph4 km/h	100%	15%	0
Mon 5a	Clear	37°3° (likely 34°1° to 42°6°)	37°3°	0%	0 mph0 km/h, gusts 2 mph4 km/h	100%	14%	0
Mon 6a	Fog	35°2° (likely 35°2° to 41°5°)	35°2°	0%	0 mph0 km/h, gusts 2 mph3 km/h	100%	23%	0
Mon 7a	Fog	34°1° (likely 34°1° to 41°5°)	34°1°	0%	0 mph0 km/h, gusts 2 mph4 km/h	100%	32%	0
Mon 8a	Fog	35°2° (likely 34°1° to 41°5°)	35°2°	0%	0 mph0 km/h, gusts 3 mph5 km/h	100%	39%	0
Mon 9a	Fog	40°4° (likely 36°2° to 47°8°)	40°4°	0%	0 mph0 km/h, gusts 3 mph5 km/h	96%	43%	1
Mon 10a	Mostly sunny	47°8° (likely 43°6° to 53°12°)	47°8°	0%	1 mph2 km/h from NW, gusts 5 mph8 km/h	86%	11%	2

Days ahead

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

Today, Oct 24. Sunny. High 62°17°, low 33°1°. Typical 64°18° / 44°7°. Dry. Forecasts agree.
1. Afternoon
  noon–6 PM
  Sunny, 61°16°
  Dry
2. Evening
  6 PM–midnight
  Clear, 50°10°
  Dry
3. Overnight
  midnight–6 AM
  Clear, 35°2°
  Dry
Official NWS forecast
Today: Sunny, with a high near 62. Southeast wind around 1 mph.
Tonight: Patchy fog after 1am. Clear, with a low around 33. East wind around 1 mph.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
59°15°–62°17°
Low, likely
32°0°–39°4°
Typical high / low
64°18° / 44°7°
Wind
6 mph9 km/h, gusts 13 mph20 km/h
UV peak
4
Tomorrow, Oct 25. Fog. High 64°18°, low 34°1°. Typical 63°17° / 43°6°. Dry. Forecasts agree.
1. Morning
  6 AM–noon
  Sunny, 33°1°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 64°18°
  Dry
3. Evening
  6 PM–midnight
  Clear, 52°11°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 37°3°
  Dry
Official NWS forecast
Day: Areas of fog before 10am. Sunny, with a high near 64. Southwest wind around 2 mph.
Night: Areas of fog after 10pm. Mostly clear, with a low around 34. East wind around 1 mph.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
61°16°–64°18°
Low, likely
34°1°–39°4°
Typical high / low
63°17° / 43°6°
Wind
6 mph9 km/h, gusts 11 mph17 km/h
UV peak
4
Monday, Oct 26. Fog. High 69°21°, low 42°6°. Typical 63°17° / 43°6°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Fog, 35°2°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 67°19°
  Dry
3. Evening
  6 PM–midnight
  Clear, 54°12°
  Dry
4. Overnight
  midnight–6 AM
  Mostly clear, 49°9°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Areas of fog before 10am. Sunny, with a high near 69. Northwest wind 0 to 3 mph.
Night: Mostly clear, with a low around 42.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
66°19°–69°21°
Low, likely
33°1°–42°6°
Typical high / low
63°17° / 43°6°
Wind
7 mph11 km/h, gusts 14 mph23 km/h
UV peak
4
Tuesday, Oct 27. Cloudy. High 62°17°, low 37°3°. Typical 63°17° / 43°6°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 47°8°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 62°16°
  Dry
3. Evening
  6 PM–midnight
  Clear, 50°10°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 40°5°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Sunny, with a high near 62.
Night: Partly cloudy, with a low around 37.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
60°16°–63°17°
Low, likely
37°3°–47°8°
Typical high / low
63°17° / 43°6°
Wind
8 mph14 km/h, gusts 16 mph26 km/h
UV peak
4
Wednesday, Oct 28. Cloudy. High 62°17°, low 42°6°. Typical 62°17° / 42°6°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Cloudy, 40°5°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 60°16°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 52°11°
  Dry
4. Overnight
  midnight–6 AM
  Mostly clear, 46°8°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly sunny, with a high near 62.
Night: Mostly cloudy, with a low around 42.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
59°15°–62°17°
Low, likely
36°2°–43°6°
Typical high / low
62°17° / 42°6°
Wind
7 mph12 km/h, gusts 19 mph30 km/h
UV peak
3
Thursday, Oct 29. Partly sunny. High 69°21°, low 45°7°. Typical 62°17° / 42°6°. Dry. Forecasts agree.
1. Morning
  6 AM–noon
  Mostly sunny, 44°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
  Clear, 45°7°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly sunny, with a high near 69.
Night: Mostly clear, with a low around 45.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
65°18°–69°21°
Low, likely
41°5°–46°8°
Typical high / low
62°17° / 42°6°
Wind
7 mph11 km/h, gusts 21 mph33 km/h
UV peak
4
Friday, Oct 30. Mostly sunny. High 70°21°, low 43°6°. Typical 62°17° / 42°6°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Mostly sunny, 45°7°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 70°21°
  Dry
3. Evening
  6 PM–midnight
  Clear, 56°13°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 45°7°
  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 43.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
69°21°–72°22°
Low, likely
40°4°–48°9°
Typical high / low
62°17° / 42°6°
Wind
10 mph17 km/h, gusts 28 mph44 km/h
UV peak
3
Saturday, Oct 31. Cloudy. High 68°20°, low 46°8°. Typical 61°16° / 41°5°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Sunny, 43°6°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 68°20°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 57°14°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 48°9°
  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
61°16°–72°22°
Low, likely
41°5°–50°10°
Typical high / low
61°16° / 41°5°
Wind
11 mph17 km/h, gusts 26 mph41 km/h
UV peak
4
Sunday, Nov 1. Cloudy. High 66°19°, low 48°9°. Typical 61°16° / 41°5°. Rain 0.02 in0.5 mm, 30% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 47°9°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 64°18°
  30% chance
3. Evening
  6 PM–midnight
  Cloudy, 56°13°
  40% chance
4. Overnight
  midnight–6 AM
  Cloudy, 51°11°
  40% chance · 0.03 in0.8 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
54°12°–70°21°
Low, likely
38°3°–53°12°
Typical high / low
61°16° / 41°5°
Wind
7 mph12 km/h, gusts 14 mph22 km/h
UV peak
3
Monday, Nov 2. Cloudy. High 64°18°, low 51°11°. Typical 60°16° / 41°5°. Rain 0.15 in3.8 mm, 40% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 55°13°
  30% chance · 0.02 in0.4 mm
2. Afternoon
  noon–6 PM
  Cloudy, 65°18°
  30% chance
3. Evening
  6 PM–midnight
  Cloudy, 55°13°
  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
53°12°–72°22°
Low, likely
39°4°–58°14°
Typical high / low
60°16° / 41°5°
Wind
9 mph14 km/h, gusts 16 mph26 km/h
UV peak
2

10 days15 days30 days

The outlook

Today
Dry, high 62°, low 33°.
Tomorrow
Dry, high 64°, low 34°.
Monday
Dry, high 69°, low 42°, warming up.
Rest of week
Mostly dry, highs 62–70°.

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

Juniata River at Newport

7.9 mi

Below flood stage

Level: 3.9 ft
Flow: 1,550 cfs

Forecast peak 4.4 ft Sun 2 PM

Reading from Sat 9:15 AM · NWS gauge page

Sherman Creek at Shermans Dale

8.9 mi

Below flood stage

Level: 1.1 ft
Flow: 62 cfs

Forecast peak 1.1 ft Sat 2 PM

Reading from Sat 9:15 AM · NWS gauge page

Conodoguinet Creek near Hogestown

9.9 mi

Below flood stage

Level: 1.6 ft
Flow: 255 cfs

Forecast peak 1.6 ft Sat 2 PM

Reading from Sat 9:30 AM · NWS gauge page

Susquehanna River at Harrisburg

12 mi

Below flood stage

Level: 3.7 ft
Flow: 11,900 cfs

Forecast peak 3.7 ft Sat 2 PM

Reading from Sat 9 AM · NWS gauge page

For your home

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

Heating this week

About 58% less heating than a typical week.

This week 36Typical 86

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 39°F).

Open the windows?

Today, 3:00 PM–5:00 PM

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

Is this typical?

Harrisburg Capital City Airport · official normals 1991–2020 · records 1939–2026

Oct 24, today vs a typical year

Today’s expected high is 2°1° colder than typical.

Last 7 days vs normal

On average 4°2° colder than normal (daily mean temperature).

−9°−5°SunOct 18
−4°−2°MonOct 19
±0°TueOct 20
−4°−2°WedOct 21
−1°ThuOct 22
−3°−2°FriOct 23
—SatOct 24

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

Sun & moon

Sun

Daylight: 10 h 46 min; Losing 2 min 35 s a day; shortest Dec 21, 1 h 29 min less
Golden hour: 5:37–6:32 PM; Morning 7:11–8:06 AM
Blue hour: 6:32–6:42 PM; Morning 7:01–7:11 AM; first light 7:01 AM

Stars tonight? Fair

Clear 6:42 PM–7:02 AM, but the moon is 99% lit and up.

Moon

Waxing gibbous

97% lit · growing

Today: sets 5:40 AM · rises 5:11 PM
Full moon: Oct 26
New moon: Nov 9

Looking west from Duncannon. The highest point on the skyline is about 2,100 ft, 17 mi away.Skyline from USGS elevation data, heights drawn up to 6× taller. Sky, sun and moon as they are now.

Duncannon, PA weather

Next 2 hours

Next 48 hours

Days ahead

The outlook

Today

Tomorrow

Monday

Rest of week

What changed since yesterday

Radar

Rivers

Juniata River at Newport

Sherman Creek at Shermans Dale

Conodoguinet Creek near Hogestown

Susquehanna River at Harrisburg

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