Observed 8:55 AM EDT at KMUI

Jonestown, PA weather

Sunny and 39°4°.

Forecasts agree

Now 39°4°

Sunny

Wind: Calm; Light through 10 PM
Dew point: 35°1°; Dry, static shocks likely
UV index: 1Low; Moderate 12–3 PM · peak 3
Pressure: 30.54 inHg1034 hPa; Rising slowly · +0.03 inHg+0.9 hPa in 3 h

No precipitation expected in the next 2 hours.

From forecast models

Next 48 hours

14°8° cooler than this time yesterday (53°11° then, 39°4° now)

Good hours for

High 62°17° today at 4 PM
Below 50°10° tonight after 8 PM
Low 35°2° tomorrow at 7 AM
Above 50°10° tomorrow by 10 AM
Fog Monday from 7 AM

This morningUp to 52°11° by 11 AM · Clear
This afternoonUp to 62°17° by 4 PM · Clear
TonightDown to 36°2° by 5 AM · Clear
Tomorrow morningUp to 55°13° by 11 AM · Clear
Tomorrow afternoonUp to 64°18° by 4 PM · Clear
Tomorrow nightDown to 38°3° by 4 AM · Clear
Monday morningUp to 43°6° by 9 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 10a	Sunny	48°9° (likely 44°7° to 49°9°)	48°9°	0%	0 mph0 km/h, gusts 5 mph9 km/h	62%	0%	1
Sat 11a	Sunny	52°11° (likely 48°9° to 54°12°)	52°11°	0%	0 mph0 km/h, gusts 4 mph7 km/h	57%	0%	2
Sat 12p	Sunny	56°13° (likely 52°11° to 57°14°)	56°13°	0%	1 mph2 km/h from SE, gusts 3 mph4 km/h	52%	0%	3
Sat 1p	Sunny	59°15° (likely 54°12° to 59°15°)	59°15°	0%	1 mph2 km/h from S, gusts 5 mph7 km/h	43%	0%	3
Sat 2p	Sunny	60°16° (likely 57°14° to 60°16°)	60°16°	0%	1 mph2 km/h from S, gusts 4 mph7 km/h	39%	0%	3
Sat 3p	Sunny	61°16° (likely 58°14° to 61°16°)	61°16°	0%	1 mph2 km/h from S, gusts 4 mph6 km/h	39%	0%	2
Sat 4p	Sunny	62°17° (likely 58°14° to 62°17°)	62°17°	0%	1 mph2 km/h from S, gusts 3 mph5 km/h	38%	0%	1
Sat 5p	Sunny	60°16° (likely 57°14° to 60°16°)	60°16°	0%	1 mph2 km/h from S, gusts 3 mph5 km/h	41%	0%	0
Sat 6p	Clear	57°14° (likely 53°12° to 57°14°)	57°14°	0%	1 mph2 km/h from S, gusts 2 mph4 km/h	47%	0%	0
Sat 7p	Clear	53°12° (likely 50°10° to 53°12°)	53°12°	0%	1 mph2 km/h from S, gusts 2 mph3 km/h	57%	0%	0
Sat 8p	Clear	48°9° (likely 48°9° to 49°9°)	48°9°	0%	0 mph0 km/h, gusts 2 mph3 km/h	71%	0%	0
Sat 9p	Clear	46°8° (likely 46°8° to 49°9°)	46°8°	0%	0 mph0 km/h, gusts 2 mph4 km/h	71%	0%	0
Sat 10p	Clear	44°7° (likely 44°7° to 47°8°)	44°7°	0%	0 mph0 km/h, gusts 2 mph3 km/h	76%	0%	0
Sat 11p	Clear	42°6° (likely 42°6° to 46°8°)	42°6°	0%	0 mph0 km/h, gusts 2 mph3 km/h	82%	0%	0
Sun 12a	Clear	40°4° (likely 40°4° to 45°7°)	40°4°	0%	0 mph0 km/h, gusts 2 mph2 km/h	89%	0%	0
Sun 1a	Clear	39°4° (likely 39°4° to 44°7°)	39°4°	0%	0 mph0 km/h, gusts 1 mph1 km/h	92%	0%	0
Sun 2a	Clear	38°3° (likely 38°3° to 43°6°)	38°3°	0%	0 mph0 km/h, gusts 2 mph3 km/h	92%	0%	0
Sun 3a	Clear	37°3° (likely 37°3° to 43°6°)	37°3°	0%	0 mph0 km/h, gusts 3 mph5 km/h	92%	0%	0
Sun 4a	Clear	37°3° (likely 37°3° to 42°6°)	37°3°	0%	0 mph0 km/h, gusts 3 mph4 km/h	89%	0%	0
Sun 5a	Clear	36°2° (likely 36°2° to 42°6°)	36°2°	0%	0 mph0 km/h, gusts 2 mph4 km/h	92%	0%	0
Sun 6a	Clear	36°2° (likely 36°2° to 41°5°)	36°2°	0%	0 mph0 km/h, gusts 2 mph4 km/h	92%	0%	0
Sun 7a	Sunny	35°2° (likely 35°2° to 40°4°)	35°2°	0%	0 mph0 km/h, gusts 2 mph3 km/h	92%	0%	0
Sun 8a	Sunny	36°2° (likely 35°2° to 40°4°)	36°2°	0%	0 mph0 km/h, gusts 1 mph2 km/h	92%	0%	0
Sun 9a	Sunny	41°5° (likely 39°4° to 44°7°)	41°5°	0%	0 mph0 km/h, gusts 2 mph2 km/h	92%	0%	1
Sun 10a	Sunny	50°10° (likely 47°8° to 51°11°)	50°10°	0%	0 mph0 km/h, gusts 2 mph3 km/h	71%	0%	2
Sun 11a	Sunny	55°13° (likely 53°12° to 55°13°)	55°13°	0%	0 mph0 km/h, gusts 5 mph8 km/h	61%	1%	3
Sun 12p	Sunny	58°14° (likely 56°13° to 59°15°)	58°14°	0%	2 mph3 km/h from SW, gusts 6 mph10 km/h	57%	1%	4
Sun 1p	Sunny	61°16° (likely 58°14° to 61°16°)	61°16°	0%	3 mph5 km/h from SW, gusts 7 mph12 km/h	49%	1%	4
Sun 2p	Sunny	63°17° (likely 59°15° to 63°17°)	63°17°	0%	5 mph8 km/h from SW, gusts 8 mph12 km/h	46%	2%	4
Sun 3p	Sunny	63°17° (likely 60°16° to 63°17°)	63°17°	0%	3 mph5 km/h from SW, gusts 8 mph12 km/h	48%	1%	3
Sun 4p	Sunny	64°18° (likely 61°16° to 64°18°)	64°18°	0%	3 mph5 km/h from SW, gusts 8 mph12 km/h	45%	0%	2
Sun 5p	Sunny	63°17° (likely 60°16° to 63°17°)	63°17°	0%	3 mph5 km/h from SW, gusts 7 mph11 km/h	50%	0%	1
Sun 6p	Clear	60°16° (likely 55°13° to 60°16°)	60°16°	0%	2 mph3 km/h from SW, gusts 5 mph9 km/h	55%	0%	0
Sun 7p	Clear	55°13° (likely 52°11° to 55°13°)	55°13°	0%	1 mph2 km/h from SW, gusts 4 mph6 km/h	66%	0%	0
Sun 8p	Clear	50°10° (likely 49°9° to 51°11°)	50°10°	0%	0 mph0 km/h, gusts 3 mph4 km/h	80%	0%	0
Sun 9p	Clear	47°8° (likely 47°8° to 50°10°)	47°8°	0%	0 mph0 km/h, gusts 3 mph5 km/h	86%	0%	0
Sun 10p	Clear	45°7° (likely 45°7° to 48°9°)	45°7°	0%	0 mph0 km/h, gusts 2 mph3 km/h	93%	0%	0
Sun 11p	Clear	44°7° (likely 44°7° to 48°9°)	44°7°	0%	0 mph0 km/h, gusts 3 mph4 km/h	96%	0%	0
Mon 12a	Clear	43°6° (likely 43°6° to 46°8°)	43°6°	0%	0 mph0 km/h, gusts 3 mph5 km/h	96%	5%	0
Mon 1a	Clear	41°5° (likely 41°5° to 45°7°)	41°5°	0%	0 mph0 km/h, gusts 2 mph3 km/h	100%	1%	0
Mon 2a	Clear	40°4° (likely 39°4° to 44°7°)	40°4°	0%	0 mph0 km/h, gusts 2 mph3 km/h	100%	2%	0
Mon 3a	Clear	39°4° (likely 37°3° to 43°6°)	39°4°	0%	0 mph0 km/h, gusts 2 mph2 km/h	100%	3%	0
Mon 4a	Clear	38°3° (likely 35°2° to 43°6°)	38°3°	0%	1 mph2 km/h from W, gusts 2 mph3 km/h	100%	13%	0
Mon 5a	Clear	38°3° (likely 35°2° to 42°6°)	38°3°	0%	1 mph2 km/h from W, gusts 2 mph3 km/h	100%	17%	0
Mon 6a	Clear	36°2° (likely 34°1° to 41°5°)	36°2°	0%	1 mph2 km/h from W, gusts 2 mph4 km/h	100%	19%	0
Mon 7a	Fog	36°2° (likely 34°1° to 41°5°)	36°2°	0%	1 mph2 km/h from W, gusts 3 mph5 km/h	100%	25%	0
Mon 8a	Fog	37°3° (likely 34°1° to 42°6°)	37°3°	0%	1 mph2 km/h from W, gusts 3 mph5 km/h	100%	43%	0
Mon 9a	Fog	43°6° (likely 35°2° to 48°9°)	43°6°	0%	1 mph2 km/h from W, gusts 3 mph5 km/h	93%	29%	1

Days ahead

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

Today, Oct 24. Sunny. High 62°17°, low 35°2°. Typical 61°16° / 41°5°. Dry. Forecasts agree.
1. Morning
  6 AM–noon
  Sunny, 52°11°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 62°17°
  Dry
3. Evening
  6 PM–midnight
  Clear, 48°9°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 36°2°
  Dry
Official NWS forecast
Today: Sunny, with a high near 62. Southeast wind around 1 mph.
Tonight: Patchy fog between 1am and 2am, then patchy frost between 2am and 3am, then areas of frost and patchy fog. Clear, with a low around 35. West wind around 1 mph.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
58°14°–62°17°
Low, likely
34°1°–37°3°
Typical high / low
61°16° / 41°5°
Wind
6 mph9 km/h, gusts 13 mph21 km/h
UV peak
4
Tomorrow, Oct 25. Sunny. High 65°18°, low 36°2°. Typical 61°16° / 41°5°. 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, 50°10°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 38°3°
  Dry
Official NWS forecast
Day: Areas of frost and areas of fog before 10am. Sunny, with a high near 65. West wind 0 to 5 mph.
Night: Areas of fog after 9pm. Clear, with a low around 36. West wind around 2 mph.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
61°16°–65°18°
Low, likely
35°2°–40°4°
Typical high / low
61°16° / 41°5°
Wind
6 mph10 km/h, gusts 11 mph18 km/h
UV peak
4
Monday, Oct 26. Fog. High 69°21°, low 44°7°. Typical 60°16° / 40°4°. Dry. Forecasts agree.
1. Morning
  6 AM–noon
  Fog, 37°3°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 66°19°
  Dry
3. Evening
  6 PM–midnight
  Clear, 54°12°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 48°9°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Patchy fog before 10am. Sunny, with a high near 69. Northwest wind 1 to 7 mph.
Night: Mostly clear, with a low around 44.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
65°18°–69°21°
Low, likely
34°1°–44°7°
Typical high / low
60°16° / 40°4°
Wind
9 mph14 km/h, gusts 16 mph26 km/h
UV peak
4
Tuesday, Oct 27. Mostly sunny. High 63°17°, low 38°3°. Typical 60°16° / 40°4°. Dry. Mostly 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, 49°10°
  Dry
4. Overnight
  midnight–6 AM
  Mostly clear, 40°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 38.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
61°16°–64°18°
Low, likely
38°3°–47°8°
Typical high / low
60°16° / 40°4°
Wind
9 mph14 km/h, gusts 18 mph28 km/h
UV peak
4
Wednesday, Oct 28. Partly sunny. High 62°17°, low 42°6°. Typical 60°16° / 40°4°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 39°4°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 59°15°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 51°10°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 44°7°
  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
58°14°–62°17°
Low, likely
36°2°–42°6°
Typical high / low
60°16° / 40°4°
Wind
7 mph11 km/h, gusts 17 mph27 km/h
UV peak
4
Thursday, Oct 29. Partly sunny. High 69°21°, low 46°8°. Typical 59°15° / 39°4°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Partly sunny, 43°6°
  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, 47°8°
  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 46.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
63°17°–69°21°
Low, likely
41°5°–46°8°
Typical high / low
59°15° / 39°4°
Wind
8 mph12 km/h, gusts 24 mph39 km/h
UV peak
4
Friday, Oct 30. Mostly sunny. High 71°22°, low 45°7°. Typical 59°15° / 39°4°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 46°8°
  Dry
2. Afternoon
  noon–6 PM
  Mostly sunny, 70°21°
  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: Sunny, with a high near 71.
Night: Mostly clear, with a low around 45.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
68°20°–72°22°
Low, likely
43°6°–48°9°
Typical high / low
59°15° / 39°4°
Wind
12 mph19 km/h, gusts 24 mph39 km/h
UV peak
3
Saturday, Oct 31. Cloudy. High 68°20°, low 46°8°. Typical 58°14° / 39°4°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Sunny, 45°7°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 67°20°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 56°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
41°5°–53°12°
Typical high / low
58°14° / 39°4°
Wind
12 mph19 km/h, gusts 29 mph46 km/h
UV peak
4
Sunday, Nov 1. Cloudy. High 65°18°, low 47°8°. Typical 58°14° / 38°3°. Rain 0.02 in0.5 mm, 30% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Partly sunny, 45°7°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 63°17°
  20% chance
3. Evening
  6 PM–midnight
  Cloudy, 55°13°
  30% chance
4. Overnight
  midnight–6 AM
  Cloudy, 50°10°
  30% chance · 0.04 in0.9 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°–69°21°
Low, likely
36°2°–53°12°
Typical high / low
58°14° / 38°3°
Wind
8 mph12 km/h, gusts 15 mph24 km/h
UV peak
3
Monday, Nov 2. Cloudy. High 64°18°, low 51°11°. Typical 58°14° / 38°3°. Rain 0.17 in4.3 mm, 30% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 55°13°
  30% chance · 0.02 in0.5 mm
2. Afternoon
  noon–6 PM
  Cloudy, 64°18°
  30% chance
3. Evening
  6 PM–midnight
  Cloudy, 54°12°
  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
52°11°–71°22°
Low, likely
39°4°–58°14°
Typical high / low
58°14° / 38°3°
Wind
10 mph17 km/h, gusts 17 mph27 km/h
UV peak
2

10 days15 days30 days

The outlook

Today
Dry, high 62°, low 35°.
Tomorrow
Dry, high 65°, low 36°, warming up.
Monday
Dry, high 69°, low 44°, 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

Swatara Creek at Harper Tavern

5.1 mi

Below flood stage

Level: 0.7 ft
Flow: 214 cfs

Forecast peak 0.7 ft Sat 2 PM

Reading from Sat 8:15 AM · NWS gauge page

Swatara Creek near Hershey

13 mi

Below flood stage

Level: 1.8 ft
Flow: 318 cfs

Forecast peak 1.9 ft Sat 2 PM

Reading from Sat 8:45 AM · NWS gauge page

Swatara Creek at Middletown

20 mi

Below flood stage

Level: 2.2 ft

Forecast peak 2.2 ft Sat 2 PM

Reading from Sat 8:15 AM · NWS gauge page

Swatara Creek near Inwood

5.3 mi

Level: 2.4 ft
Flow: 103 cfs

Reading from Sat 8:15 AM · NWS gauge page

For your home

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

Heating this week

About 68% less heating than a typical week.

This week 34Typical 105

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

Comfort

Dry air outside (dew point 35°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?

LEBANON 2 W · official normals 1991–2020 · records 1965–2026

Oct 24, today vs a typical year

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

Last 7 days vs normal

—SunOct 18
—MonOct 19
—TueOct 20
—WedOct 21
—ThuOct 22
—FriOct 23
—SatOct 24

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

Sun & moon

Sun

Daylight: 10 h 46 min; Losing 2 min 25 s a day; shortest Dec 21, 1 h 29 min less
Golden hour: 5:35–6:30 PM; Morning 7:09–8:04 AM
Blue hour: 6:30–6:40 PM; Morning 6:58–7:09 AM; first light 6:58 AM

Stars tonight? Fair

Clear 6:40 PM–6:59 AM, but the moon is 99% lit and up.

Moon

Waxing gibbous

97% lit · growing

Today: sets 5:38 AM · rises 5:09 PM
Full moon: Oct 26
New moon: Nov 9

Looking north from Jonestown. The highest point on the skyline is about 1,600 ft, 9 mi away.Skyline from USGS elevation data, heights drawn up to 6× taller. Sky, sun and moon as they are now.

Jonestown, 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 at Harper Tavern

Swatara Creek near Hershey

Swatara Creek at Middletown

Swatara Creek near Inwood

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