Observed 6:00 PM EDT at KSEG

Lewisburg, PA weather

Sunny and 55°13°.

Mostly agree

Now 55°13°

Sunny

Wind: Calm; Light through 7 AM
Dew point: 34°1°; Dry, static shocks likely
UV tomorrow: 4Moderate; Moderate 11 AM–4 PM · peak 4
Air quality: 31Good; Main pollutant: Ozone
Pressure: 30.37 inHg1028 hPa; Rising 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

Fog tonight 2–3 AM
Below freezing tomorrow 4–9 AM (low 30°−1°)
Above 50°10° tomorrow by noon
High 62°17° tomorrow at 4 PM
Below freezing Sunday 6–9 AM (low 32°0°)

TonightDown to 31°−1° by 5 AM · freezing, low 31°−1° · Partly cloudy
Tomorrow morningUp to 48°9° by 11 AM · freezing, low 30°−1° · Clear
Tomorrow afternoonUp to 62°17° by 4 PM · Clear
Tomorrow nightDown to 33°1° by 5 AM · Clear
Sunday morningUp to 48°9° by 11 AM · freezing, low 32°0° · Clear
Sunday afternoonUp to 63°17° by 3 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 7p	Clear	51°11° (likely 51°11° to 54°12°)	51°11°	0%	1 mph2 km/h from E, gusts 3 mph4 km/h	56%	41%	0
Fri 8p	Partly cloudy	47°8° (likely 47°8° to 51°11°)	47°8°	0%	1 mph2 km/h from NE, gusts 4 mph6 km/h	68%	66%	0
Fri 9p	Cloudy	45°7° (likely 45°7° to 50°10°)	45°7°	0%	0 mph0 km/h, gusts 4 mph6 km/h	86%	57%	0
Fri 10p	Cloudy	44°7° (likely 44°7° to 48°9°)	44°7°	0%	0 mph0 km/h, gusts 3 mph5 km/h	86%	58%	0
Fri 11p	Cloudy	42°6° (likely 42°6° to 45°7°)	42°6°	0%	0 mph0 km/h, gusts 2 mph4 km/h	89%	56%	0
Sat 12a	Mostly clear	39°4° (likely 39°4° to 44°7°)	39°4°	0%	0 mph0 km/h, gusts 2 mph4 km/h	100%	26%	0
Sat 1a	Clear	36°2° (likely 36°2° to 43°6°)	36°2°	0%	0 mph0 km/h, gusts 2 mph3 km/h	100%	15%	0
Sat 2a	Fog	33°1° (likely 33°1° to 42°6°)	33°1°	0%	0 mph0 km/h, gusts 1 mph2 km/h	100%	43%	0
Sat 3a	Clear	33°1° (likely 33°1° to 42°6°)	33°1°	0%	0 mph0 km/h, gusts 1 mph2 km/h	100%	11%	0
Sat 4a	Clear	32°0° (likely 32°0° to 41°5°)	32°0°	0%	0 mph0 km/h, gusts 1 mph1 km/h	100%	23%	0
Sat 5a	Clear	31°−1° (likely 31°−1° to 40°4°)	31°−1°	0%	0 mph0 km/h, gusts 2 mph3 km/h	100%	15%	0
Sat 6a	Clear	31°−1° (likely 31°−1° to 39°4°)	31°−1°	0%	0 mph0 km/h, gusts 2 mph3 km/h	100%	17%	0
Sat 7a	Sunny	31°−1° (likely 31°−1° to 39°4°)	31°−1°	0%	0 mph0 km/h, gusts 1 mph2 km/h	100%	16%	0
Sat 8a	Sunny	30°−1° (likely 30°−1° to 39°4°)	30°−1°	0%	0 mph0 km/h, gusts 2 mph3 km/h	96%	15%	0
Sat 9a	Sunny	36°2° (likely 36°2° to 42°6°)	36°2°	0%	0 mph0 km/h, gusts 2 mph3 km/h	96%	14%	1
Sat 10a	Sunny	42°6° (likely 42°6° to 48°9°)	42°6°	0%	0 mph0 km/h, gusts 2 mph4 km/h	76%	1%	2
Sat 11a	Sunny	48°9° (likely 48°9° to 53°12°)	48°9°	0%	0 mph0 km/h, gusts 3 mph5 km/h	63%	0%	3
Sat 12p	Sunny	53°12° (likely 53°12° to 56°13°)	53°12°	0%	0 mph0 km/h, gusts 6 mph9 km/h	52%	0%	3
Sat 1p	Sunny	57°14° (likely 57°14° to 59°15°)	57°14°	0%	1 mph2 km/h from S, gusts 8 mph12 km/h	45%	0%	4
Sat 2p	Sunny	60°16° (likely 58°14° to 61°16°)	60°16°	0%	1 mph2 km/h from S, gusts 7 mph11 km/h	39%	0%	4
Sat 3p	Sunny	60°16° (likely 59°15° to 61°16°)	60°16°	0%	1 mph2 km/h from S, gusts 8 mph12 km/h	39%	0%	3
Sat 4p	Sunny	62°17° (likely 59°15° to 62°17°)	62°17°	0%	1 mph2 km/h from S, gusts 7 mph12 km/h	38%	0%	2
Sat 5p	Sunny	60°16° (likely 58°14° to 60°16°)	60°16°	0%	1 mph2 km/h from S, gusts 7 mph11 km/h	41%	0%	1
Sat 6p	Clear	58°14° (likely 53°12° to 58°14°)	58°14°	0%	0 mph0 km/h, gusts 5 mph8 km/h	44%	0%	0
Sat 7p	Clear	53°12° (likely 49°9° to 53°12°)	53°12°	0%	0 mph0 km/h, gusts 5 mph7 km/h	52%	0%	0
Sat 8p	Clear	48°9° (likely 47°8° to 50°10°)	48°9°	0%	0 mph0 km/h, gusts 5 mph8 km/h	63%	0%	0
Sat 9p	Clear	45°7° (likely 44°7° to 48°9°)	45°7°	0%	0 mph0 km/h, gusts 4 mph7 km/h	70%	0%	0
Sat 10p	Clear	42°6° (likely 42°6° to 47°8°)	42°6°	0%	0 mph0 km/h, gusts 3 mph4 km/h	79%	0%	0
Sat 11p	Clear	41°5° (likely 40°4° to 46°8°)	41°5°	0%	0 mph0 km/h, gusts 2 mph3 km/h	82%	0%	0
Sun 12a	Clear	39°4° (likely 39°4° to 44°7°)	39°4°	0%	0 mph0 km/h, gusts 2 mph3 km/h	85%	0%	0
Sun 1a	Clear	37°3° (likely 37°3° to 43°6°)	37°3°	0%	0 mph0 km/h, gusts 2 mph2 km/h	92%	0%	0
Sun 2a	Clear	36°2° (likely 36°2° to 42°6°)	36°2°	0%	0 mph0 km/h, gusts 2 mph2 km/h	92%	0%	0
Sun 3a	Clear	35°2° (likely 34°1° to 41°5°)	35°2°	0%	0 mph0 km/h, gusts 1 mph2 km/h	92%	0%	0
Sun 4a	Clear	34°1° (likely 33°1° to 40°4°)	34°1°	0%	0 mph0 km/h, gusts 1 mph2 km/h	92%	0%	0
Sun 5a	Clear	33°1° (likely 32°0° to 39°4°)	33°1°	0%	0 mph0 km/h, gusts 1 mph2 km/h	92%	0%	0
Sun 6a	Clear	32°0° (likely 32°0° to 38°3°)	32°0°	0%	0 mph0 km/h, gusts 2 mph3 km/h	92%	6%	0
Sun 7a	Sunny	32°0° (likely 31°−1° to 38°3°)	32°0°	0%	0 mph0 km/h, gusts 2 mph3 km/h	92%	11%	0
Sun 8a	Sunny	32°0° (likely 31°−1° to 38°3°)	32°0°	0%	0 mph0 km/h, gusts 1 mph2 km/h	92%	13%	0
Sun 9a	Sunny	36°2° (likely 34°1° to 42°6°)	36°2°	0%	0 mph0 km/h, gusts 1 mph2 km/h	100%	10%	1
Sun 10a	Sunny	42°6° (likely 42°6° to 48°9°)	42°6°	0%	0 mph0 km/h, gusts 3 mph5 km/h	89%	0%	2
Sun 11a	Sunny	48°9° (likely 48°9° to 53°12°)	48°9°	0%	0 mph0 km/h, gusts 6 mph10 km/h	74%	2%	3
Sun 12p	Sunny	53°12° (likely 53°12° to 55°13°)	53°12°	0%	1 mph2 km/h from S, gusts 7 mph11 km/h	59%	2%	3
Sun 1p	Sunny	58°14° (likely 57°14° to 58°14°)	58°14°	0%	1 mph2 km/h from S, gusts 7 mph12 km/h	51%	4%	4
Sun 2p	Sunny	61°16° (likely 59°15° to 61°16°)	61°16°	0%	2 mph3 km/h from S, gusts 8 mph13 km/h	48%	2%	4
Sun 3p	Sunny	63°17° (likely 59°15° to 63°17°)	63°17°	0%	2 mph3 km/h from S, gusts 9 mph14 km/h	44%	0%	3
Sun 4p	Sunny	63°17° (likely 59°15° to 63°17°)	63°17°	0%	1 mph2 km/h from S, gusts 9 mph14 km/h	44%	0%	2
Sun 5p	Sunny	62°17° (likely 58°14° to 62°17°)	62°17°	0%	1 mph2 km/h from S, gusts 7 mph11 km/h	48%	0%	1
Sun 6p	Clear	59°15° (likely 53°12° to 59°15°)	59°15°	0%	1 mph2 km/h from S, gusts 5 mph8 km/h	53%	0%	0

Days ahead

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

Today, Oct 23. Cloudy. High 61°16°, low 30°−1°. Typical 61°16° / 38°3°. Dry. Mostly agree.
1. Evening
  6 PM–midnight
  Cloudy, 47°8°
  Dry
2. Overnight
  midnight–6 AM
  Clear, 31°−1°
  Dry
Official NWS forecast
Tonight: Patchy fog after 2am. Partly cloudy, with a low around 30. Northeast wind around 1 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
60°16°–62°17°
Low, likely
30°−1°–43°6°
Typical high / low
61°16° / 38°3°
Wind
7 mph11 km/h, gusts 16 mph26 km/h
UV peak
4
Tomorrow, Oct 24. Fog. High 62°17°, low 32°0°. Typical 61°16° / 38°3°. Dry. Forecasts agree.
1. Morning
  6 AM–noon
  Sunny, 30°−1°
  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, 33°1°
  Dry
Official NWS forecast
Day: Patchy fog before 9am. Sunny, with a high near 62. South wind around 1 mph.
Night: Mostly clear, with a low around 32. Wind around 0 mph.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
59°15°–62°17°
Low, likely
32°0°–38°3°
Typical high / low
61°16° / 38°3°
Wind
6 mph9 km/h, gusts 13 mph21 km/h
UV peak
4
Sunday, Oct 25. Fog. High 63°17°, low 34°1°. Typical 60°16° / 38°3°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 32°0°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 63°17°
  Dry
3. Evening
  6 PM–midnight
  Clear, 47°8°
  Dry
4. Overnight
  midnight–6 AM
  Mostly clear, 36°2°
  Dry
Official NWS forecast
Day: Areas of fog between 9am and 10am. Sunny, with a high near 63. South wind around 2 mph.
Night: Areas of fog after 10pm. Mostly clear, with a low around 34. West wind around 1 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
60°16°–63°17°
Low, likely
30°−1°–37°3°
Typical high / low
60°16° / 38°3°
Wind
5 mph8 km/h, gusts 14 mph22 km/h
UV peak
4
Monday, Oct 26. Fog. High 69°21°, low 42°6°. Typical 60°16° / 37°3°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Mostly sunny, 36°2°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 67°19°
  Dry
3. Evening
  6 PM–midnight
  Clear, 55°13°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 46°8°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Areas of fog before 9am. Sunny, with a high near 69.
Night: Mostly clear, with a low around 42.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
65°18°–69°21°
Low, likely
31°−1°–42°6°
Typical high / low
60°16° / 37°3°
Wind
7 mph10 km/h, gusts 13 mph20 km/h
UV peak
4
Tuesday, Oct 27. Partly sunny. High 63°17°, low 37°3°. Typical 60°16° / 37°3°. Dry. Mostly agree. Best day outdoors this week.
1. Morning
  6 AM–noon
  Sunny, 44°6°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 60°16°
  Dry
3. Evening
  6 PM–midnight
  Clear, 48°9°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 38°3°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly sunny, with a high near 63.
Night: Partly cloudy, with a low around 37.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
Best day outdoors this week: the one dry, mild day the forecasts agree on (high 63°17°).
High, likely
59°15°–63°17°
Low, likely
37°3°–44°7°
Typical high / low
60°16° / 37°3°
Wind
8 mph13 km/h, gusts 15 mph23 km/h
UV peak
4
Wednesday, Oct 28. Cloudy. High 61°16°, low 43°6°. Typical 59°15° / 37°3°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Partly sunny, 38°3°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 58°14°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 50°10°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 46°8°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Partly sunny, with a high near 61.
Night: Mostly cloudy, with a low around 43.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
56°13°–62°17°
Low, likely
36°2°–43°6°
Typical high / low
59°15° / 37°3°
Wind
8 mph14 km/h, gusts 19 mph30 km/h
UV peak
3
Thursday, Oct 29. Cloudy. High 68°20°, low 45°7°. Typical 59°15° / 36°2°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Cloudy, 46°8°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 64°18°
  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: Partly sunny, with a high near 68.
Night: Partly cloudy, with a low around 45.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
62°17°–68°20°
Low, likely
41°5°–48°9°
Typical high / low
59°15° / 36°2°
Wind
9 mph15 km/h, gusts 23 mph37 km/h
UV peak
4
Friday, Oct 30. Partly sunny. High 68°20°, low 44°7°. Typical 59°15° / 36°2°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 43°6°
  Dry
2. Afternoon
  noon–6 PM
  Mostly sunny, 66°19°
  Dry
3. Evening
  6 PM–midnight
  Partly cloudy, 53°12°
  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 68.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
64°18°–70°21°
Low, likely
42°6°–46°8°
Typical high / low
59°15° / 36°2°
Wind
6 mph10 km/h, gusts 18 mph28 km/h
UV peak
3
Saturday, Oct 31. Cloudy. High 65°18°, low 44°7°. Typical 58°14° / 36°2°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Cloudy, 44°6°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 64°18°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 55°13°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 47°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.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
64°18°–68°20°
Low, likely
38°3°–47°8°
Typical high / low
58°14° / 36°2°
Wind
5 mph7 km/h, gusts 13 mph20 km/h
UV peak
3
Sunday, Nov 1. Cloudy. High 62°17°, low 47°8°. Typical 58°14° / 36°2°. Rain 0.04 in1 mm, 30% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Drizzle, 48°9°
  20% chance
2. Afternoon
  noon–6 PM
  Drizzle, 61°16°
  30% chance
3. Evening
  6 PM–midnight
  Drizzle, 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
56°13°–67°19°
Low, likely
43°6°–50°10°
Typical high / low
58°14° / 36°2°
Wind
9 mph14 km/h, gusts 23 mph36 km/h

10 days15 days30 days

The outlook

Today
Dry, high 61°, low 30°.
Tomorrow
Dry, high 62°, low 32°.
Sunday
Dry, high 63°, low 34°.
Rest of week
Mostly dry, highs 61–69°.

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

West Branch Susquehanna River at Lewisburg

0.7 mi

Below flood stage

Level: 2.4 ft
Flow: 3,510 cfs

Forecast peak 2.4 ft Fri 8 PM

Reading from Fri 5:45 PM · NWS gauge page

West Branch Susquehanna River at West Milton

4.0 mi

Below flood stage

Level: 1.7 ft
Flow: 2,030 cfs

Forecast peak 1.7 ft Fri 8 PM

Reading from Fri 5:30 PM · NWS gauge page

Susquehanna River at Sunbury

9.5 mi

Below flood stage

Level: 7.3 ft
Flow: 8,620 cfs

Forecast peak 7.2 ft Fri 8 PM

Reading from Fri 5:45 PM · NWS gauge page

West Branch Susquehanna River at Allenwood

9.9 mi

Below flood stage

Level: 8.1 ft
Flow: 3,570 cfs

Forecast peak 8.0 ft Fri 8 PM

Reading from Fri 5:45 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 40Typical 115

Heating degree days, base 65°F

Heat-pump hours, next 7 days

h below 47°F: 29
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 23 hours are near freezing and damp, when outdoor units defrost more often.

Comfort

Dry air outside (dew point 34°F).

Open the windows?

Sat, 2:00 PM–5:00 PM

Good stretch to open the windows.

Is this typical?

Selinsgrove Penn Valley Airport · official normals 1991–2020 · records 1947–2026

Oct 23, today vs a typical year

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

Last 7 days vs normal

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

−7°−4°SatOct 17
−6°−4°SunOct 18
−1°MonOct 19
—TueOct 20
−1°WedOct 21
−2°−1°ThuOct 22
—FriOct 23

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

Sun & moon

Sun

Daylight: 10 h 47 min; Losing 2 min 30 s a day; shortest Dec 21, 1 h 34 min less
Golden hour: 5:37–6:32 PM; Morning 7:10–8:06 AM
Blue hour: 6:32–6:43 PM; Morning 6:59–7:10 AM; first light 6:59 AM

Stars tonight? Good

Mostly clear 3–7:01 AM; moon 95% lit, sets 5:40 AM.

Moon

Waxing gibbous

94% lit · growing

Today: sets 4:31 AM · rises 4:47 PM
Full moon: Oct 26
New moon: Nov 9

Looking northwest from Lewisburg. The highest point on the skyline is about 2,200 ft, 27 mi away.Skyline from USGS elevation data, heights drawn up to 6× taller. Sky, sun and moon as they are now.

Lewisburg, PA weather

Next 2 hours

Next 48 hours

Days ahead

The outlook

Today

Tomorrow

Sunday

Rest of week

What changed since yesterday

Radar

Rivers

West Branch Susquehanna River at Lewisburg

West Branch Susquehanna River at West Milton

Susquehanna River at Sunbury

West Branch Susquehanna River at Allenwood

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