Observed 3:00 AM EDT at KMDT

Harrisburg, PA weather

Clear and 39°4°.

Mostly agree

Now 39°4°

Clear

Wind: Calm; Light through 3 PM
Dew point: 37°3°; Comfortable
Humidity: 93%; Air 39°4°, dew point 37°3° · fog or dew likely
UV index: 0Low; Moderate 11 AM–4 PM · peak 4
Pressure: 30.49 inHg1033 hPa; Steady over the last 3 h

No precipitation expected in the next 2 hours.

From forecast models

Next 48 hours

9°5° cooler than this time yesterday (46°8° then, 38°3° now)

Good hours for

Low 36°2° today at 7 AM
Above 50°10° today by 11 AM
High 62°17° today at 4 PM
Below 50°10° tonight after 8 PM
Fog tomorrow night from 1 AM

TonightNear 39°4° · Clear
This morningUp to 53°12° by 11 AM · Clear
This afternoonUp to 62°17° by 4 PM · Clear
TonightDown to 37°3° by 5 AM · Clear
Tomorrow morningUp to 53°12° by 11 AM · Clear
Tomorrow afternoonUp to 64°18° by 5 PM · Clear
Tomorrow nightDown to 41°5° by 2 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
Sat 3a	Clear	39°4° (likely 38°3° to 44°7°)	39°4°	0%	0 mph0 km/h, gusts 4 mph7 km/h	92%	2%	0
Sat 4a	Clear	38°3° (likely 38°3° to 42°6°)	38°3°	0%	0 mph0 km/h, gusts 5 mph9 km/h	96%	8%	0
Sat 5a	Clear	38°3° (likely 37°3° to 41°5°)	38°3°	0%	0 mph0 km/h, gusts 6 mph9 km/h	96%	20%	0
Sat 6a	Clear	37°3° (likely 36°2° to 40°4°)	37°3°	0%	0 mph0 km/h, gusts 5 mph8 km/h	96%	17%	0
Sat 7a	Sunny	36°2° (likely 36°2° to 39°4°)	36°2°	0%	0 mph0 km/h, gusts 6 mph10 km/h	100%	15%	0
Sat 8a	Sunny	36°2° (likely 36°2° to 39°4°)	36°2°	0%	0 mph0 km/h, gusts 6 mph10 km/h	100%	19%	0
Sat 9a	Sunny	41°5° (likely 41°5° to 42°6°)	41°5°	0%	0 mph0 km/h, gusts 6 mph9 km/h	92%	15%	1
Sat 10a	Sunny	48°9° (likely 47°8° to 49°9°)	48°9°	0%	0 mph0 km/h, gusts 6 mph9 km/h	74%	6%	2
Sat 11a	Sunny	53°12° (likely 51°11° to 54°12°)	53°12°	0%	0 mph0 km/h, gusts 4 mph7 km/h	64%	0%	3
Sat 12p	Sunny	56°13° (likely 55°13° to 58°14°)	56°13°	0%	0 mph0 km/h, gusts 5 mph8 km/h	53%	0%	4
Sat 1p	Sunny	59°15° (likely 57°14° to 60°16°)	59°15°	0%	1 mph2 km/h from SE, gusts 6 mph10 km/h	45%	0%	4
Sat 2p	Sunny	61°16° (likely 59°15° to 61°16°)	61°16°	0%	1 mph2 km/h from SE, gusts 6 mph9 km/h	41%	0%	4
Sat 3p	Sunny	61°16° (likely 59°15° to 62°17°)	61°16°	0%	1 mph2 km/h from SE, gusts 5 mph9 km/h	38%	1%	3
Sat 4p	Sunny	62°17° (likely 59°15° to 62°17°)	62°17°	0%	1 mph2 km/h from SE, gusts 5 mph8 km/h	36%	0%	2
Sat 5p	Sunny	61°16° (likely 58°14° to 61°16°)	61°16°	0%	1 mph2 km/h from SE, gusts 5 mph8 km/h	38%	0%	1
Sat 6p	Clear	58°14° (likely 54°12° to 58°14°)	58°14°	0%	0 mph0 km/h, gusts 6 mph10 km/h	44%	0%	0
Sat 7p	Clear	54°12° (likely 51°11° to 54°12°)	54°12°	0%	0 mph0 km/h, gusts 6 mph10 km/h	54%	0%	0
Sat 8p	Clear	49°9° (likely 49°9° to 51°11°)	49°9°	0%	0 mph0 km/h, gusts 6 mph9 km/h	68%	0%	0
Sat 9p	Clear	47°8° (likely 47°8° to 50°10°)	47°8°	0%	0 mph0 km/h, gusts 7 mph10 km/h	76%	0%	0
Sat 10p	Clear	45°7° (likely 45°7° to 48°9°)	45°7°	0%	0 mph0 km/h, gusts 6 mph10 km/h	79%	0%	0
Sat 11p	Clear	43°6° (likely 43°6° to 47°8°)	43°6°	0%	0 mph0 km/h, gusts 4 mph6 km/h	86%	0%	0
Sun 12a	Clear	41°5° (likely 41°5° to 46°8°)	41°5°	0%	0 mph0 km/h, gusts 4 mph6 km/h	89%	0%	0
Sun 1a	Clear	40°4° (likely 40°4° to 45°7°)	40°4°	0%	0 mph0 km/h, gusts 3 mph5 km/h	92%	0%	0
Sun 2a	Clear	39°4° (likely 39°4° to 44°7°)	39°4°	0%	0 mph0 km/h, gusts 3 mph5 km/h	96%	0%	0
Sun 3a	Clear	39°4° (likely 39°4° to 42°6°)	39°4°	0%	0 mph0 km/h, gusts 4 mph6 km/h	96%	1%	0
Sun 4a	Clear	38°3° (likely 38°3° to 41°5°)	38°3°	0%	0 mph0 km/h, gusts 4 mph6 km/h	96%	1%	0
Sun 5a	Clear	37°3° (likely 37°3° to 40°4°)	37°3°	0%	0 mph0 km/h, gusts 4 mph6 km/h	100%	7%	0
Sun 6a	Clear	36°2° (likely 36°2° to 40°4°)	36°2°	0%	0 mph0 km/h, gusts 4 mph6 km/h	100%	14%	0
Sun 7a	Sunny	36°2° (likely 36°2° to 39°4°)	36°2°	0%	0 mph0 km/h, gusts 4 mph6 km/h	96%	15%	0
Sun 8a	Sunny	36°2° (likely 36°2° to 39°4°)	36°2°	0%	0 mph0 km/h, gusts 4 mph7 km/h	100%	17%	0
Sun 9a	Sunny	41°5° (likely 40°4° to 43°6°)	41°5°	0%	0 mph0 km/h, gusts 3 mph6 km/h	96%	16%	1
Sun 10a	Sunny	48°9° (likely 47°8° to 50°10°)	48°9°	0%	0 mph0 km/h, gusts 3 mph5 km/h	77%	3%	2
Sun 11a	Sunny	53°12° (likely 53°12° to 54°12°)	53°12°	0%	0 mph0 km/h, gusts 5 mph8 km/h	66%	3%	3
Sun 12p	Sunny	57°14° (likely 56°13° to 58°14°)	57°14°	0%	0 mph0 km/h, gusts 6 mph9 km/h	57%	3%	4
Sun 1p	Sunny	60°16° (likely 59°15° to 61°16°)	60°16°	0%	0 mph0 km/h, gusts 6 mph10 km/h	51%	14%	4
Sun 2p	Sunny	62°17° (likely 61°16° to 63°17°)	62°17°	0%	1 mph2 km/h from SW, gusts 7 mph12 km/h	48%	4%	4
Sun 3p	Sunny	63°17° (likely 62°17° to 64°18°)	63°17°	0%	1 mph2 km/h from SW, gusts 8 mph13 km/h	46%	4%	3
Sun 4p	Sunny	63°17° (likely 62°17° to 64°18°)	63°17°	0%	1 mph2 km/h from S, gusts 7 mph12 km/h	46%	3%	2
Sun 5p	Sunny	64°18° (likely 61°16° to 64°18°)	64°18°	0%	0 mph0 km/h, gusts 8 mph12 km/h	45%	2%	1
Sun 6p	Clear	60°16° (likely 57°14° to 60°16°)	60°16°	0%	0 mph0 km/h, gusts 6 mph10 km/h	53%	0%	0
Sun 7p	Clear	56°13° (likely 53°12° to 56°13°)	56°13°	0%	0 mph0 km/h, gusts 5 mph8 km/h	64%	0%	0
Sun 8p	Clear	54°12° (likely 51°11° to 54°12°)	54°12°	0%	0 mph0 km/h, gusts 4 mph6 km/h	69%	0%	0
Sun 9p	Clear	49°9° (likely 47°8° to 51°11°)	49°9°	0%	0 mph0 km/h, gusts 2 mph3 km/h	86%	0%	0
Sun 10p	Clear	46°8° (likely 44°7° to 49°9°)	46°8°	0%	0 mph0 km/h, gusts 2 mph4 km/h	96%	0%	0
Sun 11p	Clear	45°7° (likely 42°6° to 48°9°)	45°7°	0%	0 mph0 km/h, gusts 2 mph4 km/h	96%	0%	0
Mon 12a	Clear	43°6° (likely 40°4° to 47°8°)	43°6°	0%	0 mph0 km/h, gusts 2 mph4 km/h	100%	6%	0
Mon 1a	Fog	42°6° (likely 39°4° to 46°8°)	42°6°	0%	0 mph0 km/h, gusts 3 mph4 km/h	100%	15%	0
Mon 2a	Fog	41°5° (likely 38°3° to 45°7°)	41°5°	0%	0 mph0 km/h, gusts 3 mph4 km/h	100%	16%	0

Days ahead

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

Today, Oct 24. Fog. High 63°17°, low 36°2°. Typical 63°17° / 43°6°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 36°2°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 62°17°
  Dry
3. Evening
  6 PM–midnight
  Clear, 49°9°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 37°3°
  Dry
Official NWS forecast
Today: Patchy fog before 10am. Sunny, with a high near 63. East wind around 1 mph.
Tonight: Patchy fog. Mostly clear, with a low around 36. Wind around 0 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
59°15°–63°17°
Low, likely
36°2°–39°4°
Typical high / low
63°17° / 43°6°
Wind
6 mph9 km/h
UV peak
4
Tomorrow, Oct 25. Fog. High 65°18°, low 36°2°. Typical 62°17° / 42°6°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 36°2°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 64°18°
  Dry
3. Evening
  6 PM–midnight
  Clear, 54°12°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 40°4°
  Dry
Official NWS forecast
Day: Patchy fog before 9am. Sunny, with a high near 65. Southwest wind around 1 mph.
Night: Areas of fog after 10pm. Mostly clear, with a low around 36. Wind around 0 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
62°17°–65°18°
Low, likely
36°2°–39°4°
Typical high / low
62°17° / 42°6°
Wind
7 mph10 km/h
UV peak
4
Monday, Oct 26. Fog. High 70°21°, low 45°7°. Typical 62°17° / 42°6°. Dry. Forecasts agree.
1. Morning
  6 AM–noon
  Sunny, 39°4°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 68°20°
  Dry
3. Evening
  6 PM–midnight
  Clear, 56°13°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 50°10°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Areas of fog before 9am. Sunny, with a high near 70.
Night: Mostly clear, with a low around 45.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
67°19°–70°21°
Low, likely
35°2°–45°7°
Typical high / low
62°17° / 42°6°
Wind
8 mph14 km/h, gusts 15 mph24 km/h
UV peak
4
Tuesday, Oct 27. Mostly sunny. High 63°17°, low 40°4°. Typical 62°17° / 42°6°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 48°9°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 62°17°
  Dry
3. Evening
  6 PM–midnight
  Clear, 51°11°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 42°5°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Sunny, with a high near 63.
Night: Mostly clear, with a low around 40.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
61°16°–64°18°
Low, likely
40°4°–48°9°
Typical high / low
62°17° / 42°6°
Wind
10 mph16 km/h, gusts 20 mph33 km/h
UV peak
4
Wednesday, Oct 28. Cloudy. High 62°17°, low 44°7°. Typical 61°16° / 42°6°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 41°5°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 60°15°
  Dry
3. Evening
  6 PM–midnight
  Mostly clear, 53°11°
  Dry
4. Overnight
  midnight–6 AM
  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 44.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
57°14°–62°17°
Low, likely
38°3°–44°7°
Typical high / low
61°16° / 42°6°
Wind
7 mph11 km/h, gusts 17 mph27 km/h
UV peak
4
Thursday, Oct 29. Partly sunny. High 70°21°, low 48°9°. Typical 61°16° / 41°5°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 44°7°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 65°18°
  Dry
3. Evening
  6 PM–midnight
  Clear, 56°13°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 46°8°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly sunny, with a high near 70.
Night: Mostly clear, with a low around 48.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
63°17°–70°21°
Low, likely
41°5°–48°9°
Typical high / low
61°16° / 41°5°
Wind
7 mph11 km/h, gusts 20 mph31 km/h
UV peak
4
Friday, Oct 30. Mostly sunny. High 71°22°, low 45°7°. Typical 60°16° / 41°5°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Sunny, 46°8°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 69°20°
  Dry
3. Evening
  6 PM–midnight
  Clear, 57°14°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 46°8°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Sunny, with a high near 71.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
66°19°–72°22°
Low, likely
43°6°–48°9°
Typical high / low
60°16° / 41°5°
Wind
8 mph13 km/h, gusts 22 mph35 km/h
UV peak
4
Saturday, Oct 31. Cloudy. High 67°19°, low 46°8°. Typical 60°16° / 40°4°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Sunny, 44°7°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 66°19°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 56°14°
  Dry
4. Overnight
  midnight–6 AM
  Partly 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
62°17°–72°22°
Low, likely
42°6°–48°9°
Typical high / low
60°16° / 40°4°
Wind
7 mph12 km/h, gusts 18 mph29 km/h
UV peak
3
Sunday, Nov 1. Cloudy. High 66°19°, low 49°9°. Typical 60°16° / 40°4°. Rain 0.02 in0.5 mm, 30% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Partly sunny, 48°9°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 64°18°
  20% chance
3. Evening
  6 PM–midnight
  Cloudy, 58°14°
  30% chance
4. Overnight
  midnight–6 AM
  Cloudy, 57°14°
  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
57°14°–70°21°
Low, likely
45°7°–54°12°
Typical high / low
60°16° / 40°4°
Wind
8 mph13 km/h, gusts 20 mph31 km/h
UV peak
1
Monday, Nov 2. Drizzle. High 66°19°, low 57°14°. Typical 59°15° / 40°4°. Rain 0.22 in5.6 mm, 30% chance. Mostly agree.
1. Morning
  6 AM–noon
  Drizzle, 59°15°
  20% chance · 0.05 in1.3 mm
2. Afternoon
  noon–6 PM
  Drizzle, 67°19°
  30% chance · 0.07 in1.8 mm
3. Evening
  6 PM–midnight
  Cloudy, 59°15°
  30% chance · 0.01 in0.4 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
63°17°–69°21°
Low, likely
54°12°–58°14°
Typical high / low
59°15° / 40°4°
Wind
16 mph26 km/h, gusts 33 mph53 km/h
UV peak
2

10 days15 days30 days

The outlook

Today
Dry, high 63°, low 36°.
Tomorrow
Dry, high 65°, low 36°.
Monday
Dry, high 70°, low 45°, warming up.
Rest of week
Mostly dry, highs 62–71°.

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

Susquehanna River at Harrisburg

1.5 mi

Below flood stage

Level: 3.8 ft
Flow: 12,200 cfs

Forecast peak 3.7 ft Sat 8 AM

Reading from Sat 1 AM · NWS gauge page

Yellow Breeches Creek near Camp Hill

3.6 mi

Below flood stage

Level: 1.2 ft
Flow: 134 cfs

Forecast peak 1.2 ft Sat 8 AM

Reading from Sat 1:45 AM · NWS gauge page

Conodoguinet Creek near Hogestown

7.4 mi

Below flood stage

Level: 1.6 ft
Flow: 258 cfs

Forecast peak 1.6 ft Sat 8 AM

Reading from Sat 1:30 AM · NWS gauge page

Swatara Creek at Middletown

10 mi

Below flood stage

Level: 2.3 ft

Forecast peak 2.2 ft Sat 8 AM

Reading from Sat 1:30 AM · NWS gauge page

For your home

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

Heating this week

About 65% less heating than a typical week.

This week 33Typical 93

Heating degree days, base 65°F

Heat-pump hours, next 7 days

h below 47°F: 24
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 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?

Middletown Harrisburg Int'l Airport · official normals 1991–2020 · records 1888–2026

Oct 24, today vs a typical year

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

Last 7 days vs normal

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

−7°−4°SunOct 18
−2°−1°MonOct 19
+4°+2°TueOct 20
−1°WedOct 21
+2°+1°ThuOct 22
—FriOct 23
—SatOct 24

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

Sun & moon

Sun

Daylight: 10 h 47 min; Losing 2 min 25 s a day; shortest Dec 21, 1 h 29 min less
Golden hour: 5:36–6:31 PM; Morning 7:11–8:05 AM
Blue hour: 6:31–6:42 PM; Morning 7:00–7:11 AM; first light 7:00 AM

Stars tonight? Good

Mostly clear 3:21–7 AM; moon 96% lit, sets 5:39 AM.

Moon

Waxing gibbous

95% lit · growing

Today: sets 5:39 AM · rises 5:11 PM
Full moon: Oct 26
New moon: Nov 9

Looking northwest from Harrisburg. The highest point on the skyline is about 2,300 ft, 38 mi away.Skyline from USGS elevation data, heights drawn up to 6× taller. Sky, sun and moon as they are now.

Harrisburg, PA weather

Next 2 hours

Next 48 hours

Days ahead

The outlook

Today

Tomorrow

Monday

Rest of week

What changed since yesterday

Radar

Rivers

Susquehanna River at Harrisburg

Yellow Breeches Creek near Camp Hill

Conodoguinet Creek near Hogestown

Swatara Creek at Middletown

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? Good

Moon