Observed 10:55 AM EDT at KLNS

Columbia, PA weather

Sunny and 52°11°.

Mostly agree

Now 52°11°

Sunny

Wind: Calm; Light through 11 PM
Dew point: 43°6°; Comfortable
UV index: 2Low; Moderate 12–3 PM · peak 3
Air quality: 75Moderate; Main pollutant: PM2.5 (fine particles)
Pressure: 30.58 inHg1036 hPa; Steady over the last 3 h

No precipitation expected in the next 2 hours.

From forecast models

Next 48 hours

Good hours for

High 62°17° today at 4 PM
Below 50°10° tonight after 9 PM
Low 37°3° tomorrow at 6 AM
Fog tomorrow 8–10 AM
Above 50°10° tomorrow by 11 AM

This afternoonUp to 62°17° by 4 PM · Clear
TonightDown to 38°3° by 4 AM · Clear
Tomorrow morningUp to 54°12° by 11 AM · Clear
Tomorrow afternoonUp to 65°18° by 4 PM · Clear
Tomorrow nightDown to 41°5° by 4 AM · Clear
Monday morningUp to 50°10° by 10 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 11a	Sunny	51°11° (likely 50°10° to 53°12°)	51°11°	0%	0 mph0 km/h, gusts 2 mph4 km/h	63%	2%	2
Sat 12p	Sunny	55°13° (likely 53°12° to 57°14°)	55°13°	0%	0 mph0 km/h, gusts 3 mph5 km/h	56%	2%	3
Sat 1p	Sunny	59°15° (likely 56°13° to 59°15°)	59°15°	0%	0 mph0 km/h, gusts 3 mph6 km/h	45%	0%	3
Sat 2p	Sunny	61°16° (likely 58°14° to 61°16°)	61°16°	0%	0 mph0 km/h, gusts 4 mph7 km/h	39%	0%	3
Sat 3p	Sunny	61°16° (likely 59°15° to 61°16°)	61°16°	0%	1 mph2 km/h from SE, gusts 3 mph5 km/h	40%	0%	2
Sat 4p	Sunny	62°17° (likely 59°15° to 62°17°)	62°17°	0%	1 mph2 km/h from SE, gusts 3 mph5 km/h	39%	0%	1
Sat 5p	Sunny	61°16° (likely 58°14° to 61°16°)	61°16°	0%	1 mph2 km/h from SE, gusts 4 mph7 km/h	41%	0%	0
Sat 6p	Clear	58°14° (likely 54°12° to 58°14°)	58°14°	0%	1 mph2 km/h from SE, gusts 4 mph6 km/h	47%	0%	0
Sat 7p	Clear	54°12° (likely 51°11° to 54°12°)	54°12°	0%	0 mph0 km/h, gusts 4 mph6 km/h	55%	0%	0
Sat 8p	Clear	50°10° (likely 48°9° to 51°11°)	50°10°	0%	0 mph0 km/h, gusts 4 mph6 km/h	66%	0%	0
Sat 9p	Clear	47°8° (likely 47°8° to 49°9°)	47°8°	0%	0 mph0 km/h, gusts 4 mph6 km/h	71%	0%	0
Sat 10p	Clear	46°8° (likely 46°8° to 48°9°)	46°8°	0%	0 mph0 km/h, gusts 4 mph6 km/h	73%	0%	0
Sat 11p	Clear	43°6° (likely 43°6° to 47°8°)	43°6°	0%	0 mph0 km/h, gusts 3 mph4 km/h	86%	0%	0
Sun 12a	Clear	43°6° (likely 43°6° to 46°8°)	43°6°	0%	0 mph0 km/h, gusts 3 mph4 km/h	82%	0%	0
Sun 1a	Clear	42°6° (likely 41°5° to 45°7°)	42°6°	0%	0 mph0 km/h, gusts 3 mph5 km/h	86%	0%	0
Sun 2a	Clear	41°5° (likely 40°4° to 43°6°)	41°5°	0%	0 mph0 km/h, gusts 3 mph5 km/h	89%	9%	0
Sun 3a	Clear	39°4° (likely 39°4° to 43°6°)	39°4°	0%	0 mph0 km/h, gusts 3 mph5 km/h	92%	13%	0
Sun 4a	Clear	38°3° (likely 38°3° to 42°6°)	38°3°	0%	0 mph0 km/h, gusts 3 mph5 km/h	96%	8%	0
Sun 5a	Clear	38°3° (likely 37°3° to 41°5°)	38°3°	0%	0 mph0 km/h, gusts 2 mph3 km/h	96%	5%	0
Sun 6a	Clear	37°3° (likely 37°3° to 40°4°)	37°3°	0%	0 mph0 km/h, gusts 2 mph4 km/h	96%	6%	0
Sun 7a	Sunny	37°3° (likely 36°2° to 40°4°)	37°3°	0%	0 mph0 km/h, gusts 2 mph3 km/h	96%	13%	0
Sun 8a	Fog	37°3° (likely 36°2° to 40°4°)	37°3°	0%	0 mph0 km/h, gusts 2 mph3 km/h	96%	18%	0
Sun 9a	Fog	42°6° (likely 39°4° to 44°7°)	42°6°	0%	0 mph0 km/h, gusts 2 mph4 km/h	93%	16%	1
Sun 10a	Sunny	48°9° (likely 48°9° to 49°9°)	48°9°	0%	0 mph0 km/h, gusts 2 mph4 km/h	83%	3%	2
Sun 11a	Sunny	54°12° (likely 53°12° to 54°12°)	54°12°	0%	0 mph0 km/h, gusts 3 mph5 km/h	66%	2%	3
Sun 12p	Sunny	57°14° (likely 57°14° to 58°14°)	57°14°	0%	0 mph0 km/h, gusts 6 mph9 km/h	62%	2%	4
Sun 1p	Sunny	61°16° (likely 59°15° to 61°16°)	61°16°	0%	1 mph2 km/h from W, gusts 5 mph8 km/h	53%	4%	4
Sun 2p	Sunny	63°17° (likely 60°16° to 63°17°)	63°17°	0%	1 mph2 km/h from W, gusts 6 mph9 km/h	50%	6%	4
Sun 3p	Sunny	63°17° (likely 61°16° to 63°17°)	63°17°	0%	1 mph2 km/h from W, gusts 6 mph10 km/h	50%	4%	3
Sun 4p	Sunny	65°18° (likely 62°17° to 65°18°)	65°18°	0%	1 mph2 km/h from SW, gusts 6 mph10 km/h	46%	3%	2
Sun 5p	Sunny	63°17° (likely 60°16° to 63°17°)	63°17°	0%	0 mph0 km/h, gusts 6 mph10 km/h	52%	2%	1
Sun 6p	Clear	61°16° (likely 57°14° to 61°16°)	61°16°	0%	0 mph0 km/h, gusts 4 mph6 km/h	53%	2%	0
Sun 7p	Clear	57°14° (likely 53°12° to 57°14°)	57°14°	0%	0 mph0 km/h, gusts 4 mph6 km/h	62%	4%	0
Sun 8p	Clear	52°11° (likely 51°11° to 53°12°)	52°11°	0%	0 mph0 km/h, gusts 4 mph6 km/h	77%	0%	0
Sun 9p	Clear	49°9° (likely 49°9° to 51°11°)	49°9°	0%	0 mph0 km/h, gusts 3 mph5 km/h	80%	0%	0
Sun 10p	Clear	47°8° (likely 47°8° to 50°10°)	47°8°	0%	0 mph0 km/h, gusts 4 mph6 km/h	86%	0%	0
Sun 11p	Clear	45°7° (likely 45°7° to 48°9°)	45°7°	0%	0 mph0 km/h, gusts 4 mph6 km/h	93%	0%	0
Mon 12a	Clear	44°7° (likely 44°7° to 47°8°)	44°7°	0%	0 mph0 km/h, gusts 3 mph5 km/h	93%	15%	0
Mon 1a	Clear	43°6° (likely 42°6° to 46°8°)	43°6°	0%	1 mph2 km/h from W, gusts 3 mph4 km/h	96%	13%	0
Mon 2a	Clear	43°6° (likely 41°5° to 45°7°)	43°6°	0%	1 mph2 km/h from W, gusts 2 mph3 km/h	93%	12%	0
Mon 3a	Clear	42°6° (likely 40°4° to 44°7°)	42°6°	0%	1 mph2 km/h from W, gusts 2 mph4 km/h	96%	11%	0
Mon 4a	Clear	41°5° (likely 39°4° to 44°7°)	41°5°	0%	2 mph3 km/h from W, gusts 3 mph5 km/h	96%	13%	0
Mon 5a	Clear	41°5° (likely 38°3° to 43°6°)	41°5°	0%	2 mph3 km/h from W, gusts 3 mph6 km/h	96%	13%	0
Mon 6a	Clear	40°4° (likely 37°3° to 43°6°)	40°4°	0%	2 mph3 km/h from W, gusts 4 mph6 km/h	100%	13%	0
Mon 7a	Sunny	39°4° (likely 37°3° to 42°6°)	39°4°	0%	2 mph3 km/h from W, gusts 4 mph6 km/h	100%	16%	0
Mon 8a	Sunny	40°4° (likely 37°3° to 43°6°)	40°4°	0%	2 mph3 km/h from W, gusts 4 mph7 km/h	100%	17%	0
Mon 9a	Sunny	45°7° (likely 41°5° to 48°9°)	44°7°	0%	3 mph5 km/h from W, gusts 6 mph9 km/h	89%	14%	1
Mon 10a	Mostly sunny	50°10° (likely 47°8° to 53°12°)	49°9°	0%	3 mph5 km/h from W, gusts 8 mph12 km/h	83%	5%	2

Days ahead

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

Today, Oct 24. Sunny. High 63°17°, low 37°3°. Typical 63°17° / 41°5°. Dry. Mostly 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, 38°3°
  Dry
Official NWS forecast
Today: Sunny, with a high near 63. Southeast wind around 1 mph.
Tonight: Patchy fog between 2am and 4am, then patchy frost and patchy fog. Clear, with a low around 37. Northeast wind around 1 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
59°15°–63°17°
Low, likely
34°1°–39°4°
Typical high / low
63°17° / 41°5°
Wind
5 mph8 km/h
UV peak
4
Tomorrow, Oct 25. Fog. High 65°18°, low 39°4°. Typical 63°17° / 40°4°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Fog, 37°3°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 65°18°
  Dry
3. Evening
  6 PM–midnight
  Clear, 52°11°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 41°5°
  Dry
Official NWS forecast
Day: Patchy frost and patchy fog before 10am. Sunny, with a high near 65. West wind around 1 mph.
Night: Areas of fog after midnight. Mostly clear, with a low around 39. West wind around 2 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
62°17°–65°18°
Low, likely
35°2°–40°4°
Typical high / low
63°17° / 40°4°
Wind
6 mph9 km/h
UV peak
4
Monday, Oct 26. Fog. High 69°21°, low 46°8°. Typical 63°17° / 40°4°. Dry. Forecasts agree.
1. Morning
  6 AM–noon
  Sunny, 40°4°
  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, 50°10°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Patchy fog before 9am. Sunny, with a high near 69. West wind 2 to 7 mph.
Night: Mostly clear, with a low around 46.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
66°19°–69°21°
Low, likely
37°3°–46°8°
Typical high / low
63°17° / 40°4°
Wind
9 mph15 km/h, gusts 16 mph25 km/h
UV peak
4
Tuesday, Oct 27. Mostly sunny. High 64°18°, low 40°4°. Typical 62°17° / 40°4°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 48°9°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 63°17°
  Dry
3. Evening
  6 PM–midnight
  Clear, 52°11°
  Dry
4. Overnight
  midnight–6 AM
  Mostly clear, 42°6°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Sunny, with a high near 64.
Night: Mostly clear, with a low around 40.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
61°16°–65°18°
Low, likely
40°4°–48°9°
Typical high / low
62°17° / 40°4°
Wind
9 mph14 km/h, gusts 16 mph25 km/h
UV peak
4
Wednesday, Oct 28. Cloudy. High 63°17°, low 45°7°. Typical 62°17° / 39°4°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 41°5°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 61°16°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 52°11°
  Dry
4. Overnight
  midnight–6 AM
  Mostly clear, 46°8°
  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 45.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
60°16°–63°17°
Low, likely
39°4°–45°7°
Typical high / low
62°17° / 39°4°
Wind
8 mph12 km/h, gusts 18 mph29 km/h
UV peak
3
Thursday, Oct 29. Partly sunny. High 70°21°, low 49°9°. Typical 62°17° / 39°4°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 45°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, 48°9°
  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 49.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
65°18°–70°21°
Low, likely
43°6°–49°9°
Typical high / low
62°17° / 39°4°
Wind
8 mph12 km/h, gusts 24 mph38 km/h
UV peak
4
Friday, Oct 30. Mostly sunny. High 71°22°, low 47°8°. Typical 61°16° / 39°4°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 47°8°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 70°21°
  Dry
3. Evening
  6 PM–midnight
  Clear, 58°14°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 47°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 47.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
69°21°–71°22°
Low, likely
44°7°–49°9°
Typical high / low
61°16° / 39°4°
Wind
12 mph19 km/h, gusts 26 mph42 km/h
UV peak
4
Saturday, Oct 31. Cloudy. High 68°20°, low 46°8°. Typical 61°16° / 38°3°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Sunny, 46°8°
  Dry
2. Afternoon
  noon–6 PM
  Mostly sunny, 68°20°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 57°14°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 49°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
59°15°–72°22°
Low, likely
41°5°–50°10°
Typical high / low
61°16° / 38°3°
Wind
11 mph17 km/h, gusts 25 mph40 km/h
UV peak
3
Sunday, Nov 1. Cloudy. High 66°19°, low 49°9°. Typical 60°16° / 38°3°. Rain 0.01 in0.3 mm, 30% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Partly sunny, 48°9°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 65°18°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 55°13°
  30% chance
4. Overnight
  midnight–6 AM
  Cloudy, 53°11°
  30% chance · 0.02 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.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
55°13°–71°22°
Low, likely
37°3°–55°13°
Typical high / low
60°16° / 38°3°
Wind
9 mph15 km/h, gusts 21 mph33 km/h
UV peak
3
Monday, Nov 2. Cloudy. High 65°18°, low 53°12°. Typical 60°16° / 38°3°. Rain 0.11 in2.8 mm, 30% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Partly sunny, 57°14°
  30% chance
2. Afternoon
  noon–6 PM
  Cloudy, 66°19°
  20% chance
3. Evening
  6 PM–midnight
  Cloudy, 55°13°
  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.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
54°12°–72°22°
Low, likely
41°5°–59°15°
Typical high / low
60°16° / 38°3°
Wind
11 mph17 km/h, gusts 17 mph27 km/h
UV peak
1

10 days15 days30 days

The outlook

Today
Dry, high 63°, low 37°.
Tomorrow
Dry, high 65°, low 39°.
Monday
Dry, high 69°, low 46°, warming up.
Rest of week
Mostly dry, highs 63–71°.

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 Marietta

2.3 mi

Below flood stage

Level: 34.5 ft
Flow: 13,900 cfs

Forecast peak 34.4 ft Sat 2 PM

Reading from Sat 10:30 AM · NWS gauge page

Conestoga River at Lancaster

12 mi

Below flood stage

Level: 3.6 ft
Flow: 258 cfs

Forecast peak 3.6 ft Sat 2 PM

Reading from Sat 10:15 AM · NWS gauge page

Chiques Creek above MARIETTA

2.2 mi

Level: 2.8 ft
Flow: 87 cfs

Reading from Sat 10:15 AM · NWS gauge page

Kreutz Creek at Strickler

3.1 mi

Level: 1.7 ft
Flow: 21 cfs

Reading from Sat 10:15 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 31Typical 98

Heating degree days, base 65°F

Heat-pump hours, next 7 days

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

Comfort

Dry air outside (dew point 43°F).

Open the windows?

Today, 2:00 PM–5:00 PM

Good stretch to open the windows.

Is this typical?

Lancaster 2 NE Filt Plant · official normals 1991–2020 · records 1949–2026

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

Columbia 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 28 min less
Golden hour: 5:35–6:30 PM; Morning 7:09–8:03 AM
Blue hour: 6:30–6:41 PM; Morning 6:58–7:09 AM; first light 6:58 AM

Stars tonight? Fair

Clear 6:41 PM–6:59 AM, but the moon is 99% lit and up.

Moon

Waxing gibbous

97% lit · growing

Today: sets 5:38 AM · rises 5:10 PM
Full moon: Oct 26
New moon: Nov 9

Looking south from Columbia. The highest point on the skyline is about 4,800 ft, 26 mi away.Skyline from USGS elevation data, heights drawn up to 6× taller. Sky, sun and moon as they are now.

Columbia, 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 Marietta

Conestoga River at Lancaster

Chiques Creek above MARIETTA

Kreutz Creek at Strickler

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