Observed 3:45 PM EDT at KMDT

Union Deposit, PA weather

Sunny and 61°16°, jacket by 7 PM.

Forecasts agree

Now 61°16°

Sunny

Wind: Calm; Light through 4 AM
Dew point: 36°2°; Comfortable
UV tomorrow: 4Moderate; Moderate 11 AM–4 PM · peak 4
Air quality: 60Moderate; Main pollutant: PM2.5 (fine particles)
Pressure: 30.51 inHg1033 hPa; Falling slowly · −0.04 inHg−1.2 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 36°2° tonight at 4 AM
Above 50°10° tomorrow by 10 AM
High 63°17° tomorrow at 2 PM

This afternoonNear 62°17° · Clear
TonightDown to 36°2° by 4 AM · Clear
Tomorrow morningUp to 55°13° by 11 AM · Clear
Tomorrow afternoonUp to 64°18° by 4 PM · Clear
Tomorrow nightDown to 40°4° by 4 AM · Clear
Monday morningUp to 57°14° by 11 AM · Clear
Monday afternoonUp to 67°19° 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
Sat 4p	Sunny	61°16° (likely 59°15° to 61°16°)	61°16°	0%	1 mph2 km/h from SE, gusts 4 mph6 km/h	36%	0%	2
Sat 5p	Sunny	62°17° (likely 57°14° to 62°17°)	62°17°	0%	1 mph2 km/h from SE, gusts 4 mph6 km/h	35%	0%	1
Sat 6p	Clear	58°14° (likely 54°12° to 58°14°)	58°14°	0%	1 mph2 km/h from SE, gusts 5 mph8 km/h	42%	0%	0
Sat 7p	Clear	54°12° (likely 50°10° to 54°12°)	54°12°	0%	0 mph0 km/h, gusts 5 mph8 km/h	50%	0%	0
Sat 8p	Clear	50°10° (likely 48°9° to 50°10°)	50°10°	0%	0 mph0 km/h, gusts 4 mph7 km/h	61%	0%	0
Sat 9p	Clear	44°7° (likely 44°7° to 48°9°)	44°7°	0%	0 mph0 km/h, gusts 4 mph7 km/h	76%	0%	0
Sat 10p	Clear	42°6° (likely 42°6° to 46°8°)	42°6°	0%	0 mph0 km/h, gusts 2 mph4 km/h	82%	0%	0
Sat 11p	Clear	40°4° (likely 40°4° to 45°7°)	40°4°	0%	0 mph0 km/h, gusts 3 mph4 km/h	92%	0%	0
Sun 12a	Clear	38°3° (likely 38°3° to 44°7°)	38°3°	0%	0 mph0 km/h, gusts 3 mph5 km/h	100%	0%	0
Sun 1a	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 2a	Clear	37°3° (likely 37°3° to 41°5°)	37°3°	0%	0 mph0 km/h, gusts 1 mph2 km/h	100%	6%	0
Sun 3a	Clear	37°3° (likely 37°3° to 40°4°)	37°3°	0%	0 mph0 km/h, gusts 2 mph3 km/h	96%	14%	0
Sun 4a	Clear	36°2° (likely 36°2° to 39°4°)	36°2°	0%	0 mph0 km/h, gusts 2 mph3 km/h	100%	15%	0
Sun 5a	Clear	36°2° (likely 36°2° to 39°4°)	36°2°	0%	0 mph0 km/h, gusts 2 mph3 km/h	100%	16%	0
Sun 6a	Clear	36°2° (likely 36°2° to 38°3°)	36°2°	0%	0 mph0 km/h, gusts 2 mph3 km/h	96%	15%	0
Sun 7a	Sunny	36°2° (likely 35°2° to 38°3°)	36°2°	0%	0 mph0 km/h, gusts 3 mph4 km/h	92%	15%	0
Sun 8a	Sunny	36°2° (likely 35°2° to 38°3°)	36°2°	0%	0 mph0 km/h, gusts 2 mph4 km/h	96%	16%	0
Sun 9a	Sunny	42°6° (likely 38°3° to 43°6°)	42°6°	0%	0 mph0 km/h, gusts 2 mph3 km/h	82%	16%	1
Sun 10a	Sunny	50°10° (likely 45°7° to 50°10°)	50°10°	0%	0 mph0 km/h, gusts 2 mph3 km/h	68%	2%	2
Sun 11a	Sunny	55°13° (likely 52°11° to 55°13°)	55°13°	0%	0 mph0 km/h, gusts 4 mph7 km/h	59%	2%	3
Sun 12p	Sunny	58°14° (likely 56°13° to 58°14°)	58°14°	0%	1 mph2 km/h from SW, gusts 6 mph9 km/h	55%	2%	4
Sun 1p	Sunny	61°16° (likely 58°14° to 61°16°)	61°16°	0%	2 mph3 km/h from SW, gusts 7 mph12 km/h	50%	2%	4
Sun 2p	Sunny	63°17° (likely 60°16° to 63°17°)	63°17°	0%	3 mph5 km/h from SW, gusts 7 mph11 km/h	44%	3%	4
Sun 3p	Sunny	63°17° (likely 61°16° to 63°17°)	63°17°	0%	2 mph3 km/h from SW, gusts 7 mph12 km/h	44%	2%	3
Sun 4p	Sunny	64°18° (likely 61°16° to 64°18°)	64°18°	0%	2 mph3 km/h from SW, gusts 7 mph12 km/h	45%	2%	2
Sun 5p	Sunny	63°17° (likely 60°16° to 63°17°)	63°17°	0%	2 mph3 km/h from SW, gusts 8 mph13 km/h	46%	1%	1
Sun 6p	Clear	60°16° (likely 56°13° to 60°16°)	60°16°	0%	1 mph2 km/h from SW, gusts 6 mph10 km/h	51%	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	59%	0%	0
Sun 8p	Clear	49°9° (likely 49°9° to 52°11°)	49°9°	0%	0 mph0 km/h, gusts 6 mph9 km/h	83%	0%	0
Sun 9p	Clear	46°8° (likely 46°8° to 51°11°)	46°8°	0%	0 mph0 km/h, gusts 4 mph7 km/h	93%	0%	0
Sun 10p	Clear	44°7° (likely 44°7° to 49°9°)	44°7°	0%	0 mph0 km/h, gusts 3 mph5 km/h	100%	0%	0
Sun 11p	Clear	43°6° (likely 43°6° to 47°8°)	43°6°	0%	0 mph0 km/h, gusts 4 mph6 km/h	100%	11%	0
Mon 12a	Mostly clear	42°6° (likely 42°6° to 45°7°)	42°6°	0%	0 mph0 km/h, gusts 4 mph6 km/h	100%	31%	0
Mon 1a	Mostly clear	42°6° (likely 42°6° to 44°7°)	42°6°	0%	0 mph0 km/h, gusts 3 mph4 km/h	100%	19%	0
Mon 2a	Mostly clear	41°5° (likely 41°5° to 43°6°)	41°5°	0%	0 mph0 km/h, gusts 3 mph4 km/h	100%	21%	0
Mon 3a	Clear	41°5° (likely 40°4° to 42°6°)	41°5°	0%	1 mph2 km/h from W, gusts 2 mph3 km/h	100%	20%	0
Mon 4a	Clear	40°4° (likely 39°4° to 42°6°)	40°4°	0%	1 mph2 km/h from W, gusts 3 mph5 km/h	100%	20%	0
Mon 5a	Clear	40°4° (likely 39°4° to 41°5°)	40°4°	0%	1 mph2 km/h from W, gusts 3 mph5 km/h	100%	21%	0
Mon 6a	Clear	39°4° (likely 38°3° to 41°5°)	39°4°	0%	1 mph2 km/h from W, gusts 3 mph6 km/h	100%	22%	0
Mon 7a	Sunny	39°4° (likely 36°2° to 41°5°)	39°4°	0%	1 mph2 km/h from W, gusts 4 mph6 km/h	100%	25%	0
Mon 8a	Sunny	40°4° (likely 35°2° to 42°6°)	40°4°	0%	1 mph2 km/h from W, gusts 4 mph6 km/h	100%	25%	0
Mon 9a	Mostly cloudy	45°7° (likely 36°2° to 47°8°)	45°7°	0%	2 mph3 km/h from W, gusts 4 mph7 km/h	100%	34%	1
Mon 10a	Sunny	51°11° (likely 43°6° to 52°11°)	51°11°	0%	3 mph5 km/h from W, gusts 6 mph10 km/h	86%	2%	2
Mon 11a	Sunny	57°14° (likely 51°11° to 57°14°)	57°14°	0%	3 mph5 km/h from W, gusts 7 mph12 km/h	72%	2%	3
Mon 12p	Mostly sunny	60°16° (likely 57°14° to 61°16°)	60°16°	0%	5 mph8 km/h from W, gusts 9 mph15 km/h	64%	3%	4
Mon 1p	Sunny	63°17° (likely 61°16° to 64°18°)	63°17°	0%	6 mph10 km/h from NW, gusts 11 mph17 km/h	58%	2%	4
Mon 2p	Sunny	67°19° (likely 63°17° to 67°19°)	67°19°	0%	7 mph11 km/h from NW, gusts 11 mph18 km/h	50%	2%	4
Mon 3p	Sunny	67°19° (likely 64°18° to 67°19°)	67°19°	0%	7 mph11 km/h from NW, gusts 11 mph18 km/h	52%	3%	3

Days ahead

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

Today, Oct 24. Sunny. High 63°17°, low 36°2°. Typical 63°17° / 43°6°. Dry. Forecasts agree.
1. Afternoon
  noon–6 PM
  Sunny, 62°17°
  Dry
2. Evening
  6 PM–midnight
  Clear, 50°10°
  Dry
3. Overnight
  midnight–6 AM
  Clear, 36°2°
  Dry
Official NWS forecast
Today: Sunny, with a high near 63. Southeast wind around 1 mph.
Tonight: Patchy frost after 1am. Clear, with a low around 36. East wind around 1 mph.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
59°15°–63°17°
Low, likely
33°1°–36°2°
Typical high / low
63°17° / 43°6°
Wind
5 mph8 km/h
UV peak
4
Tomorrow, Oct 25. Sunny. High 64°18°, low 39°4°. Typical 62°17° / 42°6°. Dry. Forecasts 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, 49°9°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 40°4°
  Dry
Official NWS forecast
Day: Patchy frost before 9am. Sunny, with a high near 64. Southwest wind 0 to 3 mph.
Night: Mostly clear, with a low around 39. West wind around 1 mph.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
61°16°–64°18°
Low, likely
35°2°–39°4°
Typical high / low
62°17° / 42°6°
Wind
7 mph10 km/h
UV peak
4
Monday, Oct 26. Mostly sunny. High 69°21°, low 45°7°. Typical 62°17° / 42°6°. Dry. Forecasts agree.
1. Morning
  6 AM–noon
  Mostly cloudy, 40°4°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 67°19°
  Dry
3. Evening
  6 PM–midnight
  Clear, 55°13°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 48°9°
  Dry
Official NWS forecast
Day: Mostly sunny, with a high near 69. West wind 1 to 7 mph.
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
35°2°–45°7°
Typical high / low
62°17° / 42°6°
Wind
9 mph15 km/h, gusts 15 mph23 km/h
UV peak
4
Tuesday, Oct 27. Mostly sunny. High 65°18°, low 39°4°. Typical 62°17° / 42°6°. Dry. Forecasts agree.
1. Morning
  6 AM–noon
  Sunny, 46°8°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 62°17°
  Dry
3. Evening
  6 PM–midnight
  Clear, 50°10°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 41°5°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Sunny, with a high near 65.
Night: Mostly clear, with a low around 39.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
61°16°–65°18°
Low, likely
39°4°–47°8°
Typical high / low
62°17° / 42°6°
Wind
9 mph14 km/h, gusts 20 mph32 km/h
UV peak
4
Wednesday, Oct 28. Cloudy. High 63°17°, low 44°7°. Typical 61°16° / 42°6°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Mostly sunny, 41°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
  Cloudy, 44°7°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly sunny, with a high near 63.
Night: Mostly cloudy, with a low around 44.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
59°15°–63°17°
Low, likely
36°2°–44°7°
Typical high / low
61°16° / 42°6°
Wind
7 mph10 km/h, gusts 15 mph24 km/h
UV peak
4
Thursday, Oct 29. Partly sunny. High 70°21°, low 47°8°. Typical 61°16° / 41°5°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  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, 47°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 47.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
64°18°–70°21°
Low, likely
41°5°–47°8°
Typical high / low
61°16° / 41°5°
Wind
6 mph10 km/h, gusts 21 mph33 km/h
UV peak
4
Friday, Oct 30. Mostly sunny. High 73°23°, low 48°9°. Typical 60°16° / 41°5°. Dry. Forecasts agree.
1. Morning
  6 AM–noon
  Sunny, 46°8°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 71°22°
  Dry
3. Evening
  6 PM–midnight
  Clear, 59°15°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 48°9°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Sunny, with a high near 73.
Night: Mostly clear, with a low around 48.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
70°21°–73°23°
Low, likely
43°6°–48°9°
Typical high / low
60°16° / 41°5°
Wind
9 mph15 km/h, gusts 24 mph38 km/h
UV peak
4
Saturday, Oct 31. Cloudy. High 69°21°, low 48°9°. Typical 60°16° / 40°4°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 48°9°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 70°21°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 59°15°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 53°12°
  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
65°18°–72°22°
Low, likely
47°8°–50°10°
Typical high / low
60°16° / 40°4°
Wind
7 mph10 km/h, gusts 27 mph44 km/h
UV peak
3
Sunday, Nov 1. Drizzle. High 68°20°, low 52°11°. Typical 60°16° / 40°4°. Rain 0.04 in1 mm, 30% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 55°13°
  Dry
2. Afternoon
  noon–6 PM
  Partly sunny, 68°20°
  30% chance
3. Evening
  6 PM–midnight
  Drizzle, 62°16°
  40% chance · 0.02 in0.4 mm
4. Overnight
  midnight–6 AM
  Drizzle, 61°16°
  30% chance · 0.15 in3.8 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
63°17°–71°22°
Low, likely
50°10°–53°12°
Typical high / low
60°16° / 40°4°
Wind
10 mph17 km/h, gusts 22 mph35 km/h
UV peak
1
Monday, Nov 2. Showers. High 69°21°, low 59°15°. Typical 59°15° / 40°4°. Rain 0.76 in19 mm, 40% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Drizzle, 62°17°
  30% chance · 0.13 in3.3 mm
2. Afternoon
  noon–6 PM
  Drizzle, 69°21°
  20% chance · 0.11 in2.7 mm
3. Evening
  6 PM–midnight
  Drizzle, 64°18°
  30% chance · 0.54 in14 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
64°18°–74°23°
Low, likely
57°14°–65°18°
Typical high / low
59°15° / 40°4°
Wind
14 mph23 km/h, gusts 34 mph55 km/h

10 days15 days30 days

The outlook

Today
Dry, high 63°, low 36°.
Tomorrow
Dry, high 64°, low 39°.
Monday
Dry, high 69°, low 45°, warming up.
Rest of week
Mostly dry, highs 63–73°.

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

Swatara Creek near Hershey

0.8 mi

Below flood stage

Level: 1.8 ft
Flow: 310 cfs

Forecast peak 1.8 ft Sat 8 PM

Reading from Sat 2:45 PM · NWS gauge page

Swatara Creek at Middletown

7.4 mi

Below flood stage

Level: 2.2 ft

Forecast peak 2.2 ft Sat 8 PM

Reading from Sat 2:15 PM · NWS gauge page

Swatara Creek at Harper Tavern

9.3 mi

Below flood stage

Level: 0.7 ft
Flow: 211 cfs

Forecast peak 0.7 ft Sat 8 PM

Reading from Sat 2:15 PM · NWS gauge page

Susquehanna River at Harrisburg

11 mi

Below flood stage

Level: 3.7 ft
Flow: 11,800 cfs

Forecast peak 3.7 ft Sat 8 PM

Reading from Sat 2 PM · 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: 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 21 hours are near freezing and damp, when outdoor units defrost more often.

Comfort

Dry air outside (dew point 36°F).

Open the windows?

Sun, 1:00 PM–6:00 PM

Good stretch to open the windows.

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
−2°−1°FriOct 23
—SatOct 24

Union Deposit weather by month: normals, records, snow and freeze dates

Sun & moon

Sun

Daylight: 10 h 46 min; Losing 2 min 30 s a day; shortest Dec 21, 1 h 29 min less
Golden hour: 5:36–6:30 PM; Morning 7:10–8:05 AM
Blue hour: 6:30–6:41 PM; Morning 6:59–7:10 AM; first light 6:59 AM

Stars tonight? Fair

Clear 6:41 PM–7 AM, but the moon is 99% lit and up.

Moon

Waxing gibbous

98% lit · growing

Today: sets 5:39 AM · rises 5:10 PM
Full moon: Oct 26
New moon: Nov 9

Looking northwest from Union Deposit. The highest point on the skyline is about 1,800 ft, 34 mi away.Skyline from USGS elevation data, heights drawn up to 6× taller. Sky, sun and moon as they are now.

Union Deposit, PA weather

Next 2 hours

Next 48 hours

Days ahead

The outlook

Today

Tomorrow

Monday

Rest of week

What changed since yesterday

Radar

Rivers

Swatara Creek near Hershey

Swatara Creek at Middletown

Swatara Creek at Harper Tavern

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