Lancaster weather live forecast

Tomorrow's maximum temperature in Lancaster is expected to be 26°C.

5-day weather forecast updated at 04:01 on Saturday 17th May 2025 GMT

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The 5-day weather forecast for Pennsylvania (Lancaster) is provided by the Swiss meteorological agency, meteoblue. Find out more about our data sources.

Lancaster weather forecast by day

Below are the detailed weather forecasts for Lancaster for the next 5 days.

Lancaster weather for Saturday 17th May 2025

Expect isolated thunderstorms in Lancaster, Pennsylvania with a maximum temperature of 26°C, low levels of heat & humidity, maximum UV of 7 (High) and 9 hours of bright sunshine. There are 2-5 mm of rainfall expected with 7% chance of some rain and a light breeze of 12 kph from the west.

  • 26°C maximum temperature26
    °C maximum temperature
  • 17°C minimum temperature17
    °C minimum temperature
  • Isolated thunderstorms
    isolated thunderstorms
  • 9 hours of bright sunshine9
    hours of sunshine
  • UV (maximum) index 7 (High)7
    UV index (High)
  • 7% chance of some rain7
    % chance of some rain
  • 2-5 mm of rainfall expected<5
    mm of rainfall expected
  • Low heat & humidityL
    low heat & humidity
  • Light breeze of 12 kph from the West12
    kph wind from W

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Lancaster weather for Sunday 18th May 2025

Expect broken clouds in Lancaster, Pennsylvania with a maximum temperature of 20°C, maximum UV of 5 (Moderate) and 7 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 13 kph from the west.

  • 20°C maximum temperature20
    °C maximum temperature
  • 14°C minimum temperature14
    °C minimum temperature
  • Broken clouds
    broken clouds
  • 7 hours of bright sunshine7
    hours of sunshine
  • UV (maximum) index 5 (Moderate)5
    UV index (Moderate)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • No heat & humidity0
    no heat & humidity
  • Gentle breeze of 13 kph from the West13
    kph wind from W

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Lancaster weather for Monday 19th May 2025

Expect scattered clouds in Lancaster, Pennsylvania with a maximum temperature of 22°C, maximum UV of 7 (High) and 10 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 9 kph from the north-west.

  • 22°C maximum temperature22
    °C maximum temperature
  • 13°C minimum temperature13
    °C minimum temperature
  • Scattered clouds
    scattered clouds
  • 10 hours of bright sunshine10
    hours of sunshine
  • UV (maximum) index 7 (High)7
    UV index (High)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • 22°C wind chill22
    °C wind chill
  • Light breeze of 9 kph from the North-West9
    kph wind from NW

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Lancaster weather for Tuesday 20th May 2025

Expect scattered clouds in Lancaster, Pennsylvania with a maximum temperature of 19°C, maximum UV of 8 (Very High) and 11 hours of bright sunshine. There are 0 mm of rainfall expected and little or no wind of 5 kph from the north-west.

  • 19°C maximum temperature19
    °C maximum temperature
  • 9°C minimum temperature9
    °C minimum temperature
  • Scattered clouds
    scattered clouds
  • 11 hours of bright sunshine11
    hours of sunshine
  • UV (maximum) index 8 (Very High)8
    UV index (Very High)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • 19°C wind chill19
    °C wind chill
  • Little or no wind of 5 kph from the North-West5
    kph wind from NW

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Lancaster weather for Wednesday 21st May 2025

Expect cloudy with some rain in Lancaster, Pennsylvania with a maximum temperature of 13°C, maximum UV of 1 (Low) and no hours of bright sunshine. There are 20-30 mm of rainfall expected with 88% chance of some rain and a light breeze of 8 kph from the east.

  • 13°C maximum temperature13
    °C maximum temperature
  • 11°C minimum temperature11
    °C minimum temperature
  • Cloudy with some rain
    cloudy with some rain
  • No hours of bright sunshine0
    hours of sunshine
  • UV (maximum) index 1 (Low)1
    UV index (Low)
  • 88% chance of some rain88
    % chance of some rain
  • 20-30 mm of rainfall expected<30
    mm of rainfall expected
  • 13°C wind chill13
    °C wind chill
  • Light breeze of 8 kph from the East8
    kph wind from E

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Metric (°C / mm)  |  Imperial (°F / inches)

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