What is today's weather forecast for New Castle, IL?

Today's forecast for New Castle shows a high of 60 degrees and a low of 41 degrees Fahrenheit. Widespread frost before 9am.

What is the 7-day weather forecast for New Castle, IL?

The 7-day forecast for New Castle shows highs from 55 to 60 degrees and lows from 38 to 46 degrees Fahrenheit. Expect precipitation on 5 days with chances of 20% or higher.

Will it rain in New Castle, IL this week?

Yes, rain is possible in New Castle this week. Precipitation chances: Saturday (26% chance), Sunday (51% chance), Monday (51% chance), Tuesday (39% chance), Wednesday (39% chance).

How accurate is the New Castle weather forecast?

WeatherForYou provides highly accurate New Castle forecasts using National Weather Service data and current conditions from the nearest available weather stations, often miles closer than regional airports, for the most precise local forecasts.

New Castle, IL Weather Forecast and Current Conditions

WEATHER ALERTS - Freeze Warning

Current Conditions From Nearby Local Station

32°F
Feels Like 32°F

Humidity 96% Dew Point 31°F Wind Calm 0 MPH Barometer 29.57 in.751.1 mm

Solar Rad 0 w/m2

Report from a personal weather station 3.5 miles ESE of central New Castle
at 6:43 AM Fri, Oct 24, 2025

WEATHER ALERTS - Freeze Warning

Current Conditions From Nearby Local Station

32°F
Feels Like 32°F

Humidity 96% Dew Point 31°F Wind Calm 0 MPH Barometer 29.57 in.751.1 mm

Solar Rad 0 w/m2

Report from a personal weather station 3.5 miles ESE of central New Castle
at 6:43 AM Fri, Oct 24, 2025

Point Forecast at a Glance

FriOct 24

60°

41°

SatOct 25

20%

59°

46°

SunOct 26

30%

60°

44°

MonOct 27

50%

58°

44°

TueOct 28

40%

57°

40°

WedOct 29

40%

56°

38°

ThuOct 30

20%

55°

38°

7-Day Temperature Trend

Week Ahead Summary

High temperatures remain relatively stable through the week, ranging from 55°F to 60°F. Unsettled weather expected with rain likely on at least 6 days.

Climate Context

This week's forecast shows temperatures running 9°F below the historical average for October. Normal highs for this period are around 67°F with lows around 44°F.

This Date in Weather History

1937 - A snow squall in Buffalo NY tied up traffic in six inches of slush.

New Castle 7 Day Weather Forecast Details

Friday Oct 24

Day: Widespread frost before 9am. Mostly sunny, with a high near 60. North northeast wind around 3 mph.

Night: Mostly cloudy, with a low around 41. East wind 3 to 7 mph.

Saturday Oct 25

Day: A slight chance of rain showers after 1pm. Cloudy, with a high near 59. East southeast wind 6 to 9 mph. Chance of precipitation is 20%.

Night: A chance of rain showers. Cloudy, with a low around 46. East southeast wind around 9 mph. Chance of precipitation is 30%.

Sunday Oct 26

Day: A chance of rain showers. Cloudy, with a high near 60. East southeast wind around 12 mph, with gusts as high as 20 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.

Night: A chance of rain showers. Cloudy, with a low around 44. East wind around 10 mph, with gusts as high as 16 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible.

Monday Oct 27

Day: A chance of rain showers. Mostly cloudy, with a high near 58. East wind around 12 mph, with gusts as high as 18 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible.

Night: A chance of rain showers. Mostly cloudy, with a low around 44. Chance of precipitation is 40%.