New Castle, IN Weather Forecast
Local 7-day forecast
Mostly Cloudy then Light Rain Likely
Track current conditions, temperature changes, wind, and the full daily outlook for New Castle, IN in one place.
A chance of rain between noon and 2pm, then rain likely and a slight chance of thunderstorms. Mostly cloudy. High near 68, with temperatures falling to around 64 in the afternoon. West southwest wind around 13 mph, with gusts as high as 26 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch possible.
Local Weather Overview
This forecast page for New Castle, IN is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: Apr 9, 2026 3:48 PM EDT.
The active forecast window currently covers Apr 10 to Apr 15, 2026 for New Castle, IN.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Apr 10 to Apr 15, 2026
- Latest sync
- Apr 9, 2026 3:48 PM EDT
- Forecast office
- IND
- Source
- NOAA / NWS
Daily Outlook
This Week in New Castle
Tuesday looks like the warmest upcoming period in New Castle at 83 degrees F.
Friday Night is the coolest period ahead with temperatures near 41 degrees F.
The strongest winds are forecast for Monday at about 15 mph SW.
Precipitation is mentioned in 9 upcoming forecast periods.
Forecast Details
- Last updated
- Apr 9, 2026 3:48 PM EDT
- Coverage
- 6 days
- Time zone
- America/Indiana/Indianapolis
- Forecast office
- IND
- Radar station
- KIND
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
A chance of rain and a slight chance of thunderstorms before 2am. Mostly cloudy, with a low around 41. North wind 5 to 9 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.
Sunny, with a high near 66. East wind around 6 mph.
Mostly cloudy, with a low around 53. Southeast wind 2 to 7 mph.
Partly sunny, with a high near 79. South wind 7 to 14 mph, with gusts as high as 28 mph.
A chance of rain after 2am. Mostly cloudy, with a low around 63. Southwest wind 9 to 13 mph, with gusts as high as 26 mph. Chance of precipitation is 30%.
A chance of rain before 2pm, then a slight chance of thunderstorms and a slight chance of rain. Mostly cloudy, with a high near 77. Southwest wind around 15 mph, with gusts as high as 31 mph. Chance of precipitation is 50%.
A slight chance of thunderstorms and a slight chance of rain before 2am, then a chance of rain and a slight chance of thunderstorms. Mostly cloudy, with a low around 66. Southwest wind around 13 mph, with gusts as high as 25 mph. Chance of precipitation is 30%.
A chance of rain and a slight chance of thunderstorms. Partly sunny, with a high near 83. Chance of precipitation is 40%.
A chance of rain and a slight chance of thunderstorms before 8pm, then a chance of thunderstorms and a chance of rain between 8pm and 2am, then a chance of rain and a slight chance of thunderstorms. Mostly cloudy, with a low around 65. Chance of precipitation is 50%.
A chance of rain and a slight chance of thunderstorms. Mostly cloudy, with a high near 79. Chance of precipitation is 50%.
A chance of rain and a slight chance of thunderstorms. Mostly cloudy, with a low around 57. Chance of precipitation is 40%.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Friday
Apr 10
|
Mostly Cloudy then Light Rain Likely
|
68°F |
13 mph
WSW
|
|
Friday Night
Apr 10
|
Chance Light Rain
|
41°F |
5 to 9 mph
N
|
|
Saturday
Apr 11
|
Sunny
|
66°F |
6 mph
E
|
|
Saturday Night
Apr 11
|
Mostly Cloudy
|
53°F |
2 to 7 mph
SE
|
|
Sunday
Apr 12
|
Partly Sunny
|
79°F |
7 to 14 mph
S
|
|
Sunday Night
Apr 12
|
Mostly Cloudy then Chance Light Rain
|
63°F |
9 to 13 mph
SW
|
|
Monday
Apr 13
|
Chance Light Rain then Slight Chance T-storms
|
77°F |
15 mph
SW
|
|
Monday Night
Apr 13
|
Slight Chance T-storms
|
66°F |
13 mph
SW
|
|
Tuesday
Apr 14
|
Chance Light Rain
|
83°F |
10 to 14 mph
SW
|
|
Tuesday Night
Apr 14
|
Chance Light Rain then Chance T-storms
|
65°F |
12 mph
SW
|
|
Wednesday
Apr 15
|
Chance Light Rain
|
79°F |
10 to 15 mph
SW
|
|
Wednesday Night
Apr 15
|
Chance Light Rain
|
57°F |
7 to 13 mph
SW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around New Castle.
