Weather forecast for tomorrow
Wednesday, Jun 18.
5:13 am
8:27 pm
CDT
8:27 pm
CDT
Heavy Thunderstorms
81°F / 63°F
- Wind: 16mph SSW
- Humidity: 84%
- Precip. probability: 75%
- Precipitation: 0.98"
- UV index: 4
On Wednesday, in Merrillville, frequent lightning and strong thunderstorms will dominate the forecast.
Increased precipitation is forecasted for tomorrow. The highest temperature will be a moderately hot 80.6°F, while the lowest temperature will be a breezy 62.6°F.
The maximum heat index, which calculates the temperature value influenced by the moisture in the air, is calculated to be a blazing 86°F. Take into consideration that the heat index values are calculated for shade and light wind conditions.
The forecasted maximum temperature will closely reflect June's average high of 78.4°F.
Sunrise will be at 5:13 am and sunset at 8:27 pm; tomorrow's daylight will last for 15h and 14min.
Increased precipitation is forecasted for tomorrow. The highest temperature will be a moderately hot 80.6°F, while the lowest temperature will be a breezy 62.6°F.
The maximum heat index, which calculates the temperature value influenced by the moisture in the air, is calculated to be a blazing 86°F. Take into consideration that the heat index values are calculated for shade and light wind conditions.
The forecasted maximum temperature will closely reflect June's average high of 78.4°F.
Sunrise will be at 5:13 am and sunset at 8:27 pm; tomorrow's daylight will last for 15h and 14min.
Frequently asked questions
What is the weather forecast for Merrillville for tomorrow?
Tomorrow, powerful thunderstorms may bring damaging winds and intense rainfall.
Will it rain tomorrow?
Yes, it will rain tomorrow. High precipitation of 0.98" is predicted.
What will be the highest temperature tomorrow?
Tomorrow, the maximum temperature will be 80.6°F, while the minimum temperature will be 62.6°F. The maximum heat index, which calculates the temperature value influenced by the moisture in the air, is calculated to be 86°F.
The highest temperature will be in line with the average maximum of 78.4°F in June. The lowest temperature will be also in line with the average low of 61.2°F.
The highest temperature will be in line with the average maximum of 78.4°F in June. The lowest temperature will be also in line with the average low of 61.2°F.
When is the sunrise / sunset tomorrow?
On Wednesday, in Merrillville, sunrise will be at 5:13 am and sunset at 8:27 pm (CDT).
How long will the day be tomorrow?
In Merrillville, the length of the day tomorrow will be 15h and 14min.
Hourly weather forecast
12 am
- 72°F
- Feels like:
72°F
Rain
- Wind: 3mph SSW
- Pressure: 29.8"Hg
- Humidity: 94%
- Precip. probability: 86%
- Precipitation: 0.04"
- Visibility: 5mi
2 am
- 70°F
- Feels like:
72°F
Mostly Cloudy
- Wind: 2mph SSW
- Pressure: 29.77"Hg
- Humidity: 97%
- Precip. probability: 24%
- Precipitation: 0"
- Visibility: 9mi
4 am
- 70°F
- Feels like:
72°F
Cloudy
- Wind: 4mph S
- Pressure: 29.77"Hg
- Humidity: 99%
- Precip. probability: 15%
- Precipitation: 0"
- Visibility: 2mi
Sunrise: 5:13 am
6 am
- 68°F
- Feels like:
70°F
Cloudy
- Wind: 4mph SSW
- Pressure: 29.77"Hg
- Humidity: 100%
- Precip. probability: 20%
- Precipitation: 0"
- Visibility: 7mi
8 am
- 73°F
- Feels like:
75°F
Mostly Cloudy
- Wind: 4mph SSW
- Pressure: 29.77"Hg
- Humidity: 92%
- Precip. probability: 17%
- Precipitation: 0"
- Visibility: 10mi
10 am
- 79°F
- Feels like:
84°F
Scattered Thunderstorms
- Wind: 6mph S
- Pressure: 29.77"Hg
- Humidity: 81%
- Precip. probability: 36%
- Precipitation: 0.04"
- Visibility: 7mi
12 pm
- 81°F
- Feels like:
84°F
Thunderstorms
- Wind: 10mph SSE
- Pressure: 29.71"Hg
- Humidity: 76%
- Precip. probability: 69%
- Precipitation: 0.16"
- Visibility: 6mi
2 pm
- 77°F
- Feels like:
82°F
Heavy Thunderstorms
- Wind: 11mph S
- Pressure: 29.65"Hg
- Humidity: 80%
- Precip. probability: 70%
- Precipitation: 0.43"
- Visibility: 2mi
4 pm
- 73°F
- Feels like:
75°F
Scattered Thunderstorms
- Wind: 15mph WSW
- Pressure: 29.65"Hg
- Humidity: 85%
- Precip. probability: 45%
- Precipitation: 0.04"
- Visibility: 4mi
6 pm
- 72°F
- Feels like:
75°F
Cloudy
- Wind: 11mph W
- Pressure: 29.65"Hg
- Humidity: 85%
- Precip. probability: 24%
- Precipitation: 0"
- Visibility: 5mi
8 pm
- 70°F
- Feels like:
72°F
Cloudy
- Wind: 7mph W
- Pressure: 29.68"Hg
- Humidity: 88%
- Precip. probability: 24%
- Precipitation: 0"
- Visibility: 5mi
Sunset: 8:27 pm
10 pm
- 68°F
- Feels like:
70°F
Cloudy
- Wind: 6mph WNW
- Pressure: 29.71"Hg
- Humidity: 94%
- Precip. probability: 24%
- Precipitation: 0"
- Visibility: 5mi
Tomorrow, on Wednesday, a combination of dull, stormy and showery weather is forecasted.
Rainfall is forecasted at 12 am, and from 10 am to 5 pm and at 9 pm. With substantial precipitation of 0.43", most rainfall is expected at 2 pm.
The temperature will be between a minimum of 66.2°F and a maximum of 80.6°F. The warmest part of the day will be at 11 am and noon.
The forecasted high will be resembling the typical June maximum of 78.4°F. The night temperature will be also comparable to the standard June low of 61.2°F.
Rainfall is forecasted at 12 am, and from 10 am to 5 pm and at 9 pm. With substantial precipitation of 0.43", most rainfall is expected at 2 pm.
The temperature will be between a minimum of 66.2°F and a maximum of 80.6°F. The warmest part of the day will be at 11 am and noon.
The forecasted high will be resembling the typical June maximum of 78.4°F. The night temperature will be also comparable to the standard June low of 61.2°F.
Updated: Jun 17, 2025 @ 23:37:48 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate