Observed 8:40 AM EDT at KAOO

Williamsburg, PA weather

Mostly sunny and 43°6°.

Forecasts agree

Now 43°6°

Mostly sunny

Wind: Calm; Light through 9 PM
Dew point: 39°4°; Comfortable
UV index: 2Low; Moderate 11 AM–5 PM · peak 4
Air quality: 37Good; Main pollutant: PM2.5 (fine particles)
Pressure: 30.34 inHg1027 hPa; Rising · +0.05 inHg+1.6 hPa in 3 h

No precipitation expected in the next 2 hours.

From forecast models

Next 48 hours

Good hours for

Above 50°10° today by 11 AM
High 60°16° today at 3 PM
Below freezing tonight 5–9 AM (low 30°−1°)
Drops 12°7° tomorrow night 6–9 PM (57°14° → 45°7°)
Below freezing Sunday from 4 AM (low 29°−2°)

This morningUp to 53°12° by 11 AM · Clear
This afternoonUp to 60°16° by 3 PM · Clear
TonightDown to 31°−1° by 5 AM · freezing, low 31°−1° · Clear
Tomorrow morningUp to 51°11° by 11 AM · freezing, low 30°−1° · Clear
Tomorrow afternoonUp to 62°17° by 4 PM · Clear
Tomorrow nightDown to 31°−1° by 5 AM · freezing, low 31°−1° · Clear
Sunday morningNear 30°−1° · freezing, low 29°−2° · 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 9a	Sunny	44°7° (likely 44°7° to 48°9°)	44°7°	0%	2 mph3 km/h from N, gusts 7 mph11 km/h	86%	14%	1
Fri 10a	Sunny	48°9° (likely 48°9° to 53°12°)	47°8°	0%	3 mph5 km/h from NE, gusts 10 mph17 km/h	73%	5%	2
Fri 11a	Sunny	53°12° (likely 53°12° to 56°13°)	53°12°	0%	3 mph5 km/h from NE, gusts 12 mph19 km/h	63%	9%	3
Fri 12p	Sunny	55°13° (likely 55°13° to 58°14°)	55°13°	0%	3 mph5 km/h from NE, gusts 10 mph17 km/h	56%	7%	4
Fri 1p	Sunny	57°14° (likely 57°14° to 60°16°)	57°14°	0%	3 mph5 km/h from NE, gusts 9 mph14 km/h	50%	4%	4
Fri 2p	Sunny	59°15° (likely 59°15° to 61°16°)	59°15°	0%	3 mph5 km/h from NE, gusts 8 mph13 km/h	45%	4%	4
Fri 3p	Sunny	60°16° (likely 59°15° to 61°16°)	60°16°	0%	2 mph3 km/h from NE, gusts 7 mph12 km/h	42%	7%	3
Fri 4p	Sunny	59°15° (likely 59°15° to 61°16°)	59°15°	0%	2 mph3 km/h from E, gusts 7 mph12 km/h	42%	13%	3
Fri 5p	Sunny	59°15° (likely 58°14° to 60°16°)	59°15°	0%	2 mph3 km/h from E, gusts 7 mph12 km/h	40%	18%	1
Fri 6p	Clear	55°13° (likely 54°12° to 57°14°)	55°13°	0%	2 mph3 km/h from E, gusts 7 mph12 km/h	49%	24%	0
Fri 7p	Mostly clear	51°11° (likely 50°10° to 52°11°)	51°11°	0%	1 mph2 km/h from E, gusts 7 mph11 km/h	56%	29%	0
Fri 8p	Cloudy	48°9° (likely 48°9° to 51°11°)	48°9°	0%	1 mph2 km/h from E, gusts 6 mph10 km/h	65%	56%	0
Fri 9p	Mostly clear	42°6° (likely 42°6° to 50°10°)	42°6°	0%	1 mph2 km/h from E, gusts 6 mph9 km/h	86%	36%	0
Fri 10p	Clear	40°4° (likely 40°4° to 49°9°)	40°4°	0%	0 mph0 km/h, gusts 5 mph8 km/h	92%	40%	0
Fri 11p	Clear	38°3° (likely 38°3° to 48°9°)	38°3°	0%	0 mph0 km/h, gusts 5 mph8 km/h	96%	38%	0
Sat 12a	Clear	36°2° (likely 36°2° to 47°8°)	36°2°	0%	0 mph0 km/h, gusts 4 mph6 km/h	100%	8%	0
Sat 1a	Clear	36°2° (likely 36°2° to 46°8°)	36°2°	0%	0 mph0 km/h, gusts 4 mph6 km/h	100%	3%	0
Sat 2a	Clear	35°2° (likely 35°2° to 44°7°)	35°2°	0%	0 mph0 km/h, gusts 3 mph5 km/h	100%	1%	0
Sat 3a	Clear	34°1° (likely 34°1° to 43°6°)	34°1°	0%	0 mph0 km/h, gusts 3 mph5 km/h	100%	6%	0
Sat 4a	Clear	33°1° (likely 33°1° to 42°6°)	33°1°	0%	0 mph0 km/h, gusts 3 mph5 km/h	100%	13%	0
Sat 5a	Clear	31°−1° (likely 31°−1° to 41°5°)	31°−1°	0%	0 mph0 km/h, gusts 3 mph5 km/h	100%	14%	0
Sat 6a	Clear	31°−1° (likely 31°−1° to 40°4°)	31°−1°	0%	0 mph0 km/h, gusts 2 mph4 km/h	100%	20%	0
Sat 7a	Clear	30°−1° (likely 30°−1° to 40°4°)	30°−1°	0%	0 mph0 km/h, gusts 1 mph2 km/h	100%	20%	0
Sat 8a	Sunny	30°−1° (likely 30°−1° to 39°4°)	30°−1°	0%	0 mph0 km/h, gusts 1 mph2 km/h	100%	20%	0
Sat 9a	Sunny	34°1° (likely 34°1° to 42°6°)	34°1°	0%	0 mph0 km/h, gusts 1 mph2 km/h	100%	19%	1
Sat 10a	Sunny	43°6° (likely 43°6° to 48°9°)	43°6°	0%	0 mph0 km/h, gusts 6 mph9 km/h	89%	0%	1
Sat 11a	Sunny	51°11° (likely 51°11° to 53°12°)	51°11°	0%	1 mph2 km/h from SE, gusts 8 mph13 km/h	68%	0%	3
Sat 12p	Sunny	55°13° (likely 54°12° to 57°14°)	55°13°	0%	2 mph3 km/h from SE, gusts 10 mph16 km/h	59%	3%	3
Sat 1p	Sunny	59°15° (likely 56°13° to 59°15°)	59°15°	0%	3 mph5 km/h from SE, gusts 11 mph17 km/h	51%	5%	4
Sat 2p	Sunny	60°16° (likely 57°14° to 60°16°)	60°16°	0%	3 mph5 km/h from SE, gusts 10 mph16 km/h	46%	2%	4
Sat 3p	Sunny	61°16° (likely 58°14° to 61°16°)	61°16°	0%	3 mph5 km/h from SE, gusts 10 mph15 km/h	42%	0%	3
Sat 4p	Sunny	62°17° (likely 58°14° to 62°17°)	62°17°	0%	3 mph5 km/h from SE, gusts 10 mph16 km/h	39%	0%	2
Sat 5p	Sunny	60°16° (likely 57°14° to 60°16°)	60°16°	0%	2 mph3 km/h from SE, gusts 9 mph15 km/h	42%	0%	1
Sat 6p	Clear	57°14° (likely 53°12° to 57°14°)	57°14°	0%	2 mph3 km/h from SE, gusts 9 mph14 km/h	49%	0%	0
Sat 7p	Clear	52°11° (likely 49°9° to 52°11°)	52°11°	0%	1 mph2 km/h from SE, gusts 7 mph11 km/h	59%	0%	0
Sat 8p	Clear	45°7° (likely 45°7° to 49°9°)	45°7°	0%	1 mph2 km/h from SE, gusts 7 mph11 km/h	73%	0%	0
Sat 9p	Clear	42°6° (likely 42°6° to 47°8°)	42°6°	0%	0 mph0 km/h, gusts 6 mph9 km/h	82%	0%	0
Sat 10p	Clear	40°4° (likely 40°4° to 46°8°)	40°4°	0%	0 mph0 km/h, gusts 7 mph11 km/h	89%	0%	0
Sat 11p	Clear	38°3° (likely 38°3° to 45°7°)	38°3°	0%	0 mph0 km/h, gusts 6 mph10 km/h	92%	0%	0
Sun 12a	Clear	36°2° (likely 36°2° to 44°7°)	36°2°	0%	0 mph0 km/h, gusts 5 mph9 km/h	96%	0%	0
Sun 1a	Clear	35°2° (likely 34°1° to 43°6°)	35°2°	0%	0 mph0 km/h, gusts 5 mph8 km/h	96%	0%	0
Sun 2a	Clear	34°1° (likely 34°1° to 42°6°)	34°1°	0%	0 mph0 km/h, gusts 3 mph5 km/h	96%	0%	0
Sun 3a	Clear	33°1° (likely 32°0° to 40°4°)	33°1°	0%	0 mph0 km/h, gusts 1 mph2 km/h	96%	0%	0
Sun 4a	Clear	32°0° (likely 32°0° to 39°4°)	32°0°	0%	0 mph0 km/h, gusts 1 mph2 km/h	100%	0%	0
Sun 5a	Clear	31°−1° (likely 31°−1° to 38°3°)	31°−1°	0%	0 mph0 km/h, gusts 1 mph2 km/h	100%	0%	0
Sun 6a	Clear	29°−2° (likely 29°−2° to 38°3°)	29°−2°	0%	0 mph0 km/h, gusts 1 mph2 km/h	100%	0%	0
Sun 7a	Clear	29°−2° (likely 29°−2° to 37°3°)	29°−2°	0%	0 mph0 km/h, gusts 1 mph2 km/h	100%	0%	0
Sun 8a	Sunny	30°−1° (likely 30°−1° to 38°3°)	30°−1°	0%	0 mph0 km/h, gusts 1 mph2 km/h	100%	0%	0

Days ahead

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

Today, Oct 23. Sunny. High 61°16°, low 30°−1°. Typical 60°16° / 41°5°. Dry. Forecasts agree.
1. Morning
  6 AM–noon
  Sunny, 53°12°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 60°16°
  Dry
3. Evening
  6 PM–midnight
  Mostly clear, 48°9°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 31°−1°
  Dry
Official NWS forecast
Today: Sunny, with a high near 61. Northeast wind around 3 mph.
Tonight: Patchy frost between 1am and 3am, then widespread frost and patchy fog. Mostly clear, with a low around 30. Northeast wind around 2 mph.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
59°15°–61°16°
Low, likely
30°−1°–44°7°
Typical high / low
60°16° / 41°5°
Wind
7 mph11 km/h, gusts 16 mph25 km/h
UV peak
4
Tomorrow, Oct 24. Fog. High 62°17°, low 29°−2°. Typical 60°16° / 41°5°. Dry. Mostly 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, 45°7°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 31°−1°
  Dry
Official NWS forecast
Day: Widespread frost and patchy fog before 10am. Sunny, with a high near 62. Southeast wind 0 to 3 mph.
Night: Areas of frost between midnight and 5am, then areas of frost and patchy fog. Clear, with a low around 29. East wind around 2 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
58°14°–62°17°
Low, likely
29°−2°–39°4°
Typical high / low
60°16° / 41°5°
Wind
7 mph10 km/h, gusts 14 mph22 km/h
UV peak
4
Sunday, Oct 25. Sunny. High 66°19°, low 32°0°. Typical 59°15° / 40°4°. Dry. Mostly 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, 47°9°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 36°2°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Widespread frost and patchy fog before 9am. Sunny, with a high near 66. South wind around 2 mph.
Night: Mostly clear, with a low around 32.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
61°16°–66°19°
Low, likely
30°−1°–36°2°
Typical high / low
59°15° / 40°4°
Wind
5 mph8 km/h, gusts 13 mph21 km/h
UV peak
4
Monday, Oct 26. Sunny. High 71°22°, low 39°4°. Typical 59°15° / 40°4°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 34°1°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 68°20°
  Dry
3. Evening
  6 PM–midnight
  Clear, 54°12°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 44°7°
  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 39.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
67°19°–71°22°
Low, likely
29°−2°–39°4°
Typical high / low
59°15° / 40°4°
Wind
7 mph11 km/h, gusts 17 mph28 km/h
UV peak
4
Tuesday, Oct 27. Partly sunny. High 65°18°, low 36°2°. Typical 58°14° / 40°4°. 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
  Partly cloudy, 53°12°
  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 65.
Night: Partly cloudy, with a low around 36.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
62°17°–67°19°
Low, likely
36°2°–46°8°
Typical high / low
58°14° / 40°4°
Wind
5 mph8 km/h, gusts 11 mph18 km/h
UV peak
4
Wednesday, Oct 28. Mostly cloudy. High 63°17°, low 39°4°. Typical 58°14° / 40°4°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Cloudy, 44°6°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 60°16°
  Dry
3. Evening
  6 PM–midnight
  Mostly clear, 53°12°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 47°9°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Partly sunny, with a high near 63.
Night: Mostly cloudy, with a low around 39.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
58°14°–63°17°
Low, likely
38°3°–47°8°
Typical high / low
58°14° / 40°4°
Wind
9 mph15 km/h, gusts 20 mph32 km/h
UV peak
1
Thursday, Oct 29. Partly sunny. High 68°20°, low 41°5°. Typical 58°14° / 39°4°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 47°8°
  Dry
2. Afternoon
  noon–6 PM
  Mostly sunny, 67°19°
  Dry
3. Evening
  6 PM–midnight
  Partly cloudy, 56°13°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 49°9°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly sunny, with a high near 68.
Night: Partly cloudy, with a low around 41.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
65°18°–71°22°
Low, likely
41°5°–47°8°
Typical high / low
58°14° / 39°4°
Wind
9 mph14 km/h, gusts 24 mph38 km/h
UV peak
3
Friday, Oct 30. Cloudy. High 66°19°, low 48°9°. Typical 57°14° / 39°4°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 48°9°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 65°18°
  Dry
3. Evening
  6 PM–midnight
  Clear, 53°11°
  Dry
4. Overnight
  midnight–6 AM
  Mostly clear, 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
60°16°–71°22°
Low, likely
46°8°–49°9°
Typical high / low
57°14° / 39°4°
Wind
7 mph12 km/h, gusts 21 mph34 km/h
UV peak
4
Saturday, Oct 31. Partly sunny. High 58°14°, low 43°6°. Typical 57°14° / 39°4°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 46°8°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 55°13°
  Dry
3. Evening
  6 PM–midnight
  Drizzle, 47°8°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 40°4°
  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
51°11°–65°18°
Low, likely
36°2°–52°11°
Typical high / low
57°14° / 39°4°
Wind
7 mph11 km/h, gusts 20 mph31 km/h
UV peak
2
Sunday, Nov 1. Rain. High 59°15°, low 45°7°. Typical 56°13° / 38°3°. Rain 0.37 in9.4 mm, 30% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Sunny, 40°4°
  30% chance · 0.08 in1.9 mm
2. Afternoon
  noon–6 PM
  Rain, 55°13°
  30% chance · 0.14 in3.4 mm
3. Evening
  6 PM–midnight
  Drizzle, 49°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
55°13°–64°18°
Low, likely
32°0°–54°12°
Typical high / low
56°13° / 38°3°
Wind
7 mph11 km/h, gusts 17 mph28 km/h

10 days15 days30 days

The outlook

Today
Dry, high 61°, low 30°.
Tomorrow
Dry, high 62°, low 29°.
Sunday
Dry, high 66°, low 32°, warming up.
Rest of week
Mostly dry, highs 58–71°.

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

Frankstown Branch Juniata River at Williamsburg

0.3 mi

Below flood stage

Level: 3.2 ft
Flow: 225 cfs

Forecast peak 2.9 ft Fri 2 PM

Reading from Fri 8:30 AM · NWS gauge page

Juniata River at Huntingdon

9.9 mi

Below flood stage

Level: 1.8 ft
Flow: 529 cfs

Forecast peak 1.8 ft Fri 2 PM

Reading from Fri 8 AM · NWS gauge page

Little Juniata River at Spruce Creek

11 mi

Below flood stage

Level: 2.2 ft
Flow: 164 cfs

Forecast peak 2.2 ft Fri 2 PM

Reading from Fri 8:15 AM · NWS gauge page

Juniata River at Mapleton Depot

15 mi

Below flood stage

Level: 3.1 ft
Flow: 1,030 cfs

Forecast peak 4.6 ft Fri 8 PM

Reading from Fri 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 62% less heating than a typical week.

This week 41Typical 109

Heating degree days, base 65°F

Heat-pump hours, next 7 days

h below 47°F: 27
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 25 hours are near freezing and damp, when outdoor units defrost more often.

Comfort

Dry air outside (dew point 39°F).

Open the windows?

Sat, 2:00 PM–5:00 PM

Good stretch to open the windows.

Is this typical?

Altoona Blair County Airport · official normals 1991–2020 · records 1948–2026

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).

−10°−6°SatOct 17
−7°−4°SunOct 18
−3°−2°MonOct 19
−1°TueOct 20
−2°−1°WedOct 21
−2°−1°ThuOct 22
—FriOct 23

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

Sun & moon

Sun

Daylight: 10 h 49 min; Losing 2 min 30 s a day; shortest Dec 21, 1 h 32 min less
Golden hour: 5:43–6:38 PM; Morning 7:15–8:10 AM
Blue hour: 6:38–6:48 PM; Morning 7:04–7:15 AM; first light 7:04 AM

Stars tonight? Good

Mostly clear 12–7:05 AM; moon 95% lit, sets 5:45 AM.

Moon

Waxing gibbous

92% lit · growing

Today: sets 4:36 AM · rises 4:52 PM
Full moon: Oct 26
New moon: Nov 9

Looking northwest from Williamsburg. The highest point on the skyline is about 2,400 ft, 6 mi away.Skyline from USGS elevation data, heights drawn up to 5× taller. Sky, sun and moon as they are now.

Williamsburg, PA weather

Next 2 hours

Next 48 hours

Days ahead

The outlook

Today

Tomorrow

Sunday

Rest of week

What changed since yesterday

Radar

Rivers

Frankstown Branch Juniata River at Williamsburg

Juniata River at Huntingdon

Little Juniata River at Spruce Creek

Juniata River at Mapleton Depot

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