Live Weather & Forecast

Weather in New Castle

Indiana, United States · Real-time conditions & 3-day outlook

Flag of United States
Partly cloudy
19°C
Feels like 19°C
67°F / Feels 67°F
Partly cloudy
New Castle, Indiana
🌙 Nighttime
Updated: 2026-04-13 04:45
💧
Humidity
65%
💨
Wind
33.1 km/h SW
🌬️
Wind Gust
51.5 km/h
🌡️
Pressure
1015 mb
👁️
Visibility
16 km
☀️
UV Index
0 (Low)
🌧️
Precipitation
0.59 mm
☁️
Cloud Cover
75%
💦
Dew Point
11.2°C
🌐
Wind Degree
222°

Air Quality Index

US EPA: Good UK DEFRA: Low (1)
CO
143.9 μg/m³
NO₂
3.8 μg/m³
O₃
84 μg/m³
SO₂
3.9 μg/m³
PM 2.5
5.3 μg/m³
PM 10
5.7 μg/m³

Weather Alerts 3

Met · Moderate · Expected
Special Weather Statement issued April 13 at 2:09AM EDT by NWS Indianapolis IN

Scattered showers will continue to produce brief strong wind gusts of 40 to just above 50 mph through 4 am as they move east across central Indiana. An isolated higher gust in excess of 55 mph is possible. These wind gusts may knock down tree limbs and power lines.

Met · Moderate · Expected
Special Weather Statement issued April 12 at 10:13PM EDT by NWS Indianapolis IN

Scattered showers and possibly a thunderstorm are expected tonight. Though much of the shower activity will be light, conditions favor strong wind gusts associated with any shower or storm. Observations upstream across Illinois have shown wind gusts between 40 to 50 mph as of 10pm. Similar wind gusts are possible across central Indiana through tonight.

Met · Moderate · Expected
Special Weather Statement issued April 13 at 12:06AM EDT by NWS Northern Indiana

Gusty south winds could briefly gust as high as 50 mph for a short time during the early morning hours through around 3 AM EDT. A band of showers moving across northwest Indiana and southwest Lower Michigan will likely aid in producing some stronger wind gusts of 40 to 50 mph. If travelling, be prepared for brief periods of these stronger wind gusts, particularly for high profile vehicles.

Today's Hourly Forecast

24-hour breakdown for New Castle, Indiana

12 AM
Clear
20°
Clear
💧 52% 💨 30.2 km/h
1 AM
Patchy rain nearby
20°
Patchy rain nearby
💧 42% 💨 36 km/h 🌧️ 68%
2 AM
Patchy rain nearby
20°
Patchy rain nearby
💧 47% 💨 39.6 km/h 🌧️ 60%
3 AM
Patchy rain nearby
19°
Patchy rain nearby
💧 50% 💨 32.8 km/h 🌧️ 100%
4 AM
Partly cloudy
19°
Partly cloudy
💧 65% 💨 33.1 km/h 🌧️ 100%
5 AM
Clear
18°
Clear
💧 68% 💨 32.4 km/h
6 AM
Clear
17°
Clear
💧 76% 💨 30.6 km/h
7 AM
Clear
18°
Clear
💧 75% 💨 27 km/h
8 AM
Sunny
18°
Sunny
💧 77% 💨 24.8 km/h
9 AM
Light rain
18°
Light rain
💧 84% 💨 27 km/h 🌧️ 100%
10 AM
Patchy light rain
19°
Patchy light rain
💧 90% 💨 26.3 km/h 🌧️ 100%
11 AM
Patchy rain nearby
20°
Patchy rain nearby
💧 87% 💨 25.2 km/h 🌧️ 81%
12 PM
Overcast
21°
Overcast
💧 85% 💨 25.6 km/h
1 PM
Overcast
22°
Overcast
💧 84% 💨 25.6 km/h
2 PM
Partly Cloudy
23°
Partly Cloudy
💧 80% 💨 24.8 km/h
3 PM
Sunny
24°
Sunny
💧 75% 💨 26.3 km/h
4 PM
Overcast
23°
Overcast
💧 76% 💨 26.6 km/h
5 PM
Patchy rain nearby
24°
Patchy rain nearby
💧 81% 💨 28.4 km/h 🌧️ 100%
6 PM
Sunny
24°
Sunny
💧 73% 💨 27.7 km/h
7 PM
Thundery outbreaks in nearby
22°
Thundery outbreaks in nearby
💧 73% 💨 28.8 km/h
8 PM
Cloudy
22°
Cloudy
💧 86% 💨 27.4 km/h
9 PM
Thundery outbreaks in nearby
22°
Thundery outbreaks in nearby
💧 79% 💨 26.3 km/h
10 PM
Thundery outbreaks in nearby
21°
Thundery outbreaks in nearby
💧 85% 💨 28.1 km/h
11 PM
Overcast
21°
Overcast
💧 88% 💨 28.4 km/h

3-Day Forecast

Daily overview for New Castle, Indiana

Today
Patchy rain nearby
Patchy rain nearby
25° / 17°
🌧️ 81% chance of rain
💧 Avg. humidity: 74%
💨 Max wind: 39.6 km/h
🌧️ Total precip: 2.57 mm
☀️ UV Index: 0.9
🌅 Sunrise: 07:07 AM
🌇 Sunset: 08:18 PM
🌙 Waning Crescent
🌑 Moon: 23% lit
Tue, Apr 14
Thundery outbreaks in nearby
Thundery outbreaks in nearby
26° / 18°
🌧️ 0% chance of rain
💧 Avg. humidity: 81%
💨 Max wind: 33.5 km/h
🌧️ Total precip: 0 mm
☀️ UV Index: 1.6
🌅 Sunrise: 07:05 AM
🌇 Sunset: 08:19 PM
🌙 Waning Crescent
🌑 Moon: 15% lit
Wed, Apr 15
Patchy rain nearby
Patchy rain nearby
24° / 18°
🌧️ 87% chance of rain
💧 Avg. humidity: 82%
💨 Max wind: 32 km/h
🌧️ Total precip: 3.99 mm
☀️ UV Index: 1.6
🌅 Sunrise: 07:04 AM
🌇 Sunset: 08:20 PM
🌙 Waning Crescent
🌑 Moon: 8% lit

Best Time to Visit New Castle

Plan your trip to New Castle, United States around the most favorable weather conditions.

Peak Season
June – September
Warm, dry summers — ideal for outdoor activities.
Shoulder Season
April – May, October
Fewer crowds, moderate prices, mild weather.
Off Season
November – March
Cooler temperatures; some regions may experience rain or snow.
← Back to New Castle 🗓 View Holidays 2026

Frequently Asked Questions

What is the current weather in New Castle?
Current conditions in New Castle: Partly cloudy, temperature 19°C, humidity 65%.
What is the best time to visit New Castle?
The best time to visit New Castle is typically June – September. Warm, dry summers — ideal for outdoor activities.
What is the climate like in New Castle?
New Castle is located at approximately 39.9° latitude. It has a temperate climate with warm summers and cold winters.
Does it rain a lot in New Castle?
The wettest period in New Castle is typically during November – March. Cooler temperatures; some regions may experience rain or snow.
What should I pack for a trip to New Castle?
For visits to New Castle during June – September: light clothing and sun protection. For November – March: layers and a waterproof jacket are recommended.
What country is New Castle in?
New Castle is located in United States, in the state of Indiana.
What are the public holidays in New Castle in 2026?
View the 2026 public holidays for New Castle on our Holidays page.
What are the GPS coordinates used for the weather forecast in New Castle?
The weather forecast for New Castle uses coordinates 39.9289, -85.3702.