Skip to forecast
Search a place

Observed 2:00 PM EDT at KLNS

Clay, PA weather

Sunny and 61°16°, jacket by 7 PM.

Today: low 36°2° (likely 33°1° to 36°2°), high 63°17° (likely 59°15° to 63°17°).

Forecasts agree

Now 61°16°

Sunny

Wind
Calm
Light through 2 AM
Dew point
36°2°
Comfortable
UV index
4Moderate
Moderate until 4 PM
Pressure
30.54 inHg1034 hPa
Falling · −0.05 inHg−1.6 hPa in 3 h

Next 2 hours

No precipitation expected in the next 2 hours.

Next 48 hours

Good hours for
  • High 63°17° today at 4 PM
  • Below 50°10° tonight after 8 PM
  • Low 36°2° tonight at 4 AM
  • Above 50°10° tomorrow by 10 AM
  • Fog Monday 7–9 AM
  1. This afternoonNear 61°16° · Clear
  2. TonightDown to 36°2° by 4 AM · Clear
  3. Tomorrow morningUp to 55°13° by 11 AM · Clear
  4. Tomorrow afternoonUp to 65°18° by 4 PM · Clear
  5. Tomorrow nightDown to 40°4° by 4 AM · Clear
  6. Monday morningUp to 57°14° by 11 AM · Partly cloudy
Hourly forecast, next 48 hours, in the place's local time
HourConditionsTemperatureFeels likePrecipitationWindHumidityCloud coverUV index
Sat 2pSunny61°16° (likely 58°14° to 61°16°)61°16°0%0 mph0 km/h, gusts 5 mph8 km/h38%0%4
Sat 3pSunny62°17° (likely 59°15° to 62°17°)62°17°0%0 mph0 km/h, gusts 3 mph4 km/h36%0%3
Sat 4pSunny63°17° (likely 58°14° to 63°17°)63°17°0%1 mph2 km/h from S, gusts 2 mph4 km/h36%0%2
Sat 5pSunny61°16° (likely 57°14° to 61°16°)61°16°0%1 mph2 km/h from S, gusts 2 mph4 km/h39%0%1
Sat 6pClear59°15° (likely 54°12° to 59°15°)59°15°0%1 mph2 km/h from S, gusts 2 mph3 km/h42%0%0
Sat 7pClear55°13° (likely 50°10° to 55°13°)55°13°0%0 mph0 km/h, gusts 2 mph3 km/h49%0%0
Sat 8pClear48°9° (likely 48°9° to 50°10°)48°9°0%0 mph0 km/h, gusts 3 mph4 km/h63%0%0
Sat 9pClear46°8° (likely 46°8° to 48°9°)46°8°0%0 mph0 km/h, gusts 3 mph4 km/h71%0%0
Sat 10pClear44°7° (likely 44°7° to 47°8°)44°7°0%0 mph0 km/h, gusts 2 mph3 km/h76%0%0
Sat 11pClear42°6° (likely 42°6° to 46°8°)42°6°0%0 mph0 km/h, gusts 2 mph4 km/h82%0%0
Sun 12aClear40°4° (likely 40°4° to 44°7°)40°4°0%0 mph0 km/h, gusts 2 mph3 km/h89%0%0
Sun 1aClear39°4° (likely 39°4° to 43°6°)39°4°0%0 mph0 km/h, gusts 2 mph3 km/h92%0%0
Sun 2aClear38°3° (likely 38°3° to 42°6°)38°3°0%0 mph0 km/h, gusts 2 mph3 km/h92%0%0
Sun 3aClear37°3° (likely 37°3° to 42°6°)37°3°0%0 mph0 km/h, gusts 2 mph4 km/h96%0%0
Sun 4aClear36°2° (likely 36°2° to 41°5°)36°2°0%0 mph0 km/h, gusts 2 mph3 km/h95%0%0
Sun 5aClear36°2° (likely 36°2° to 40°4°)36°2°0%0 mph0 km/h, gusts 2 mph2 km/h95%0%0
Sun 6aClear36°2° (likely 35°2° to 40°4°)36°2°0%0 mph0 km/h, gusts 1 mph2 km/h91%0%0
Sun 7aSunny36°2° (likely 34°1° to 39°4°)36°2°0%0 mph0 km/h, gusts 2 mph3 km/h91%7%0
Sun 8aSunny37°3° (likely 34°1° to 39°4°)37°3°0%0 mph0 km/h, gusts 2 mph3 km/h89%10%0
Sun 9aSunny42°6° (likely 38°3° to 44°7°)42°6°0%0 mph0 km/h, gusts 2 mph3 km/h82%9%1
Sun 10aSunny51°11° (likely 47°8° to 51°11°)51°11°0%0 mph0 km/h, gusts 2 mph4 km/h66%0%2
Sun 11aSunny55°13° (likely 54°12° to 56°13°)55°13°0%0 mph0 km/h, gusts 4 mph7 km/h59%2%3
Sun 12pSunny59°15° (likely 58°14° to 59°15°)59°15°0%1 mph2 km/h from W, gusts 7 mph11 km/h51%1%4
Sun 1pSunny62°17° (likely 60°16° to 62°17°)62°17°0%1 mph2 km/h from W, gusts 8 mph13 km/h46%1%4
Sun 2pSunny63°17° (likely 61°16° to 63°17°)63°17°0%2 mph3 km/h from W, gusts 8 mph12 km/h44%2%4
Sun 3pSunny64°18° (likely 61°16° to 64°18°)64°18°0%2 mph3 km/h from SW, gusts 7 mph12 km/h46%2%3
Sun 4pSunny65°18° (likely 61°16° to 65°18°)65°18°0%2 mph3 km/h from SW, gusts 7 mph12 km/h45%2%2
Sun 5pSunny63°17° (likely 60°16° to 63°17°)63°17°0%2 mph3 km/h from SW, gusts 7 mph11 km/h50%1%1
Sun 6pClear61°16° (likely 56°13° to 61°16°)61°16°0%1 mph2 km/h from SW, gusts 5 mph9 km/h53%2%0
Sun 7pClear57°14° (likely 53°12° to 57°14°)57°14°0%0 mph0 km/h, gusts 3 mph5 km/h57%3%0
Sun 8pClear50°10° (likely 50°10° to 52°11°)50°10°0%0 mph0 km/h, gusts 3 mph5 km/h80%5%0
Sun 9pClear48°9° (likely 48°9° to 50°10°)48°9°0%0 mph0 km/h, gusts 2 mph3 km/h83%1%0
Sun 10pClear46°8° (likely 46°8° to 48°9°)46°8°0%0 mph0 km/h, gusts 3 mph4 km/h89%0%0
Sun 11pClear44°7° (likely 44°7° to 47°8°)44°7°0%0 mph0 km/h, gusts 2 mph3 km/h96%0%0
Mon 12aClear43°6° (likely 43°6° to 45°7°)43°6°0%0 mph0 km/h, gusts 2 mph3 km/h96%7%0
Mon 1aClear42°6° (likely 42°6° to 45°7°)42°6°0%0 mph0 km/h, gusts 2 mph4 km/h100%1%0
Mon 2aClear41°5° (likely 41°5° to 44°7°)41°5°0%0 mph0 km/h, gusts 2 mph3 km/h100%0%0
Mon 3aClear41°5° (likely 40°4° to 43°6°)41°5°0%1 mph2 km/h from W, gusts 3 mph4 km/h100%2%0
Mon 4aClear40°4° (likely 38°3° to 42°6°)40°4°0%1 mph2 km/h from W, gusts 3 mph4 km/h100%8%0
Mon 5aClear40°4° (likely 37°3° to 42°6°)40°4°0%1 mph2 km/h from W, gusts 4 mph6 km/h100%16%0
Mon 6aPartly cloudy39°4° (likely 36°2° to 41°5°)39°4°0%1 mph2 km/h from W, gusts 3 mph4 km/h99%39%0
Mon 7aFog39°4° (likely 35°2° to 41°5°)39°4°0%1 mph2 km/h from W, gusts 3 mph4 km/h99%47%0
Mon 8aFog40°4° (likely 35°2° to 42°6°)40°4°0%1 mph2 km/h from W, gusts 3 mph4 km/h100%44%0
Mon 9aSunny45°7° (likely 37°3° to 48°9°)45°7°0%2 mph3 km/h from W, gusts 4 mph6 km/h100%23%1
Mon 10aSunny51°11° (likely 45°7° to 53°12°)50°10°0%3 mph5 km/h from W, gusts 7 mph12 km/h87%7%2
Mon 11aSunny57°14° (likely 53°12° to 57°14°)57°14°0%5 mph8 km/h from W, gusts 9 mph15 km/h75%2%3
Mon 12pSunny60°16° (likely 59°15° to 61°16°)60°16°0%6 mph10 km/h from W, gusts 11 mph17 km/h66%4%4
Mon 1pSunny64°18° (likely 62°17° to 64°18°)64°18°0%7 mph11 km/h from W, gusts 12 mph19 km/h58%2%4

Days ahead

Shaded: typical range for these dates (1991–2020)
  1. Today, Oct 24. Sunny. High 63°17°, low 36°2°. Typical 63°17° / 41°5°. Dry. Forecasts agree.
    1. Afternoon

      noon–6 PM

      Sunny, 63°17°

      Dry

    2. Evening

      6 PM–midnight

      Clear, 48°9°

      Dry

    3. Overnight

      midnight–6 AM

      Clear, 36°2°

      Dry

    Official NWS forecast

    Today: Sunny, with a high near 63. South wind around 1 mph.

    Tonight: Patchy frost after 3am. 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° / 41°5°
    Wind
    6 mph9 km/h
    UV peak
    4
  2. Tomorrow, Oct 25. Sunny. High 65°18°, low 39°4°. Typical 63°17° / 40°4°. Dry. Forecasts agree.
    1. Morning

      6 AM–noon

      Sunny, 37°3°

      Dry

    2. Afternoon

      noon–6 PM

      Sunny, 65°18°

      Dry

    3. Evening

      6 PM–midnight

      Clear, 50°10°

      Dry

    4. Overnight

      midnight–6 AM

      Clear, 40°4°

      Dry

    Official NWS forecast

    Day: Areas of frost before 9am. Sunny, with a high near 65. West wind around 2 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°–65°18°
    Low, likely
    33°1°–39°4°
    Typical high / low
    63°17° / 40°4°
    Wind
    7 mph12 km/h
    UV peak
    4
  3. Monday, Oct 26. Mostly sunny. High 69°21°, low 45°7°. 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, 54°12°

      Dry

    4. Overnight

      midnight–6 AM

      Partly cloudy, 48°9°

      Dry

    Official NWS forecast

    Day: 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
    34°1°–45°7°
    Typical high / low
    63°17° / 40°4°
    Wind
    10 mph16 km/h, gusts 17 mph27 km/h
    UV peak
    4
  4. Tuesday, Oct 27. Mostly sunny. High 66°19°, low 40°4°. Typical 62°17° / 40°4°. Dry. Forecasts agree.
    1. Morning

      6 AM–noon

      Sunny, 45°7°

      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 66.

    Night: Mostly clear, with a low around 40.

    Forecasts agreeIndependent forecasts are close; the range is narrow.

    High, likely
    61°16°–66°19°
    Low, likely
    40°4°–47°8°
    Typical high / low
    62°17° / 40°4°
    Wind
    10 mph15 km/h, gusts 16 mph26 km/h
    UV peak
    4
  5. Wednesday, Oct 28. Cloudy. High 64°18°, 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, 60°16°

      Dry

    3. Evening

      6 PM–midnight

      Cloudy, 52°11°

      Dry

    4. Overnight

      midnight–6 AM

      Cloudy, 45°7°

      Dry

    Hours this far out come from computer models only.

    Official NWS forecast

    Day: Mostly sunny, with a high near 64.

    Night: Partly cloudy, with a low around 45.

    Mostly agreeIndependent forecasts are fairly close; small surprises are possible.

    High, likely
    59°15°–64°18°
    Low, likely
    36°2°–45°7°
    Typical high / low
    62°17° / 39°4°
    Wind
    7 mph11 km/h, gusts 15 mph24 km/h
    UV peak
    4
  6. Thursday, Oct 29. Cloudy. High 70°21°, low 47°8°. Typical 62°17° / 39°4°. Dry. Mostly agree.
    1. Morning

      6 AM–noon

      Sunny, 44°6°

      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: 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
    42°6°–47°8°
    Typical high / low
    62°17° / 39°4°
    Wind
    8 mph14 km/h, gusts 26 mph41 km/h
    UV peak
    4
  7. Friday, Oct 30. Mostly sunny. High 73°23°, low 49°9°. Typical 61°16° / 39°4°. 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, 49°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 49.

    Forecasts agreeIndependent forecasts are close; the range is narrow.

    High, likely
    71°22°–73°23°
    Low, likely
    43°6°–49°9°
    Typical high / low
    61°16° / 39°4°
    Wind
    10 mph16 km/h, gusts 25 mph40 km/h
    UV peak
    4
  8. Saturday, Oct 31. Cloudy. High 70°21°, low 47°8°. Typical 61°16° / 38°3°. Dry. Forecasts differ.
    1. Morning

      6 AM–noon

      Mostly sunny, 47°8°

      Dry

    2. Afternoon

      noon–6 PM

      Cloudy, 71°22°

      Dry

    3. Evening

      6 PM–midnight

      Cloudy, 58°14°

      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
    64°18°–73°23°
    Low, likely
    44°7°–50°10°
    Typical high / low
    61°16° / 38°3°
    Wind
    7 mph11 km/h, gusts 25 mph40 km/h
    UV peak
    3
  9. Sunday, Nov 1. Drizzle. High 68°20°, low 52°11°. Typical 60°16° / 38°3°. Rain 0.02 in0.5 mm, 30% chance. Forecasts differ.
    1. Morning

      6 AM–noon

      Cloudy, 56°13°

      Dry

    2. Afternoon

      noon–6 PM

      Cloudy, 67°20°

      Dry

    3. Evening

      6 PM–midnight

      Drizzle, 63°17°

      30% chance

    4. Overnight

      midnight–6 AM

      Drizzle, 61°16°

      30% chance · 0.08 in2.1 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
    62°17°–72°22°
    Low, likely
    50°10°–54°12°
    Typical high / low
    60°16° / 38°3°
    Wind
    13 mph21 km/h, gusts 26 mph42 km/h
    UV peak
    2
  10. Monday, Nov 2. Drizzle. High 70°21°, low 60°16°. Typical 60°16° / 38°3°. Rain 0.35 in8.9 mm, 30% chance. Forecasts differ.
    1. Morning

      6 AM–noon

      Drizzle, 63°17°

      30% chance · 0.06 in1.6 mm

    2. Afternoon

      noon–6 PM

      Drizzle, 70°21°

      20% chance · 0.07 in1.8 mm

    3. Evening

      6 PM–midnight

      Drizzle, 65°19°

      30% chance · 0.18 in4.5 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°–75°24°
    Low, likely
    57°14°–66°19°
    Typical high / low
    60°16° / 38°3°
    Wind
    21 mph33 km/h, gusts 42 mph68 km/h

The outlook

  1. Today

    Dry, high 63°, low 36°.

  2. Tomorrow

    Dry, high 65°, low 39°.

  3. Monday

    Dry, high 69°, low 45°, warming up.

  4. Rest of week

    Mostly dry, highs 64–73°.

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

Conestoga River at Lancaster

12 mi
Below flood stage
Level
3.6 ft
Flow
254 cfs

Forecast peak 3.6 ft Sat 2 PM

Reading from Sat 12:15 PM · NWS gauge page

Schuylkill River at Reading

18 mi
Below flood stage
Level
3.5 ft
Flow
751 cfs

Forecast peak 3.4 ft Sat 2 PM

Reading from Sat 12:15 PM · NWS gauge page

Susquehanna River at Marietta

19 mi
Below flood stage
Level
34.5 ft
Flow
13,800 cfs

Forecast peak 34.4 ft Sat 2 PM

Reading from Sat 12:30 PM · NWS gauge page

Pequea Creek near Ronks

15 mi
Level
2.4 ft
Flow
33 cfs

Reading from Sat 12:45 PM · NWS gauge page

For your home

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

Heating this week

About 67% less heating than a typical week.

This week 32Typical 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 19 hours are near freezing and damp, when outdoor units defrost more often.

Comfort

Dry air outside (dew point 36°F).

Open the windows?

Today, 3:00 PM–5:00 PM

Good stretch to open the windows (air quality forecast not available for part of this window).

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.

Normal high / low
63°17° / 41°5°
Forecast high / low
63°17° / 36°2°
Record high
83°28° in 2001
Record low
27°−3° in 1982

Last 7 days vs normal

  1. —SunOct 18
  2. —MonOct 19
  3. —TueOct 20
  4. —WedOct 21
  5. —ThuOct 22
  6. —FriOct 23
  7. —SatOct 24

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

Sun & moon

Sun

Sunrise 7:25 AM, sunset 6:12 PM.

Daylight
10 h 47 min
Losing 2 min 25 s a day; shortest Dec 21, 1 h 28 min less
Golden hour
5:34–6:29 PM
Morning 7:08–8:03 AM
Blue hour
6:29–6:39 PM
Morning 6:57–7:08 AM; first light 6:57 AM

Stars tonight? Fair

Clear 6:39 PM–6:58 AM, but the moon is 99% lit and up.

Moon

Waxing gibbous

97% lit · growing

Today
sets 5:37 AM · rises 5:08 PM
Full moon
Oct 26
New moon
Nov 9
Looking north from Clay. The highest point on the skyline is about 3,500 ft, 4 mi away.Skyline from USGS elevation data, heights drawn up to 3.5× taller. Sky, sun and moon as they are now.