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Merrillville, United States Snapshot 2026
Where is Merrillville?
Merrillville, United States
- Continent
- Americas
- Country
- United States
- City
- Merrillville
- Population
- 35.2K
- Elevation
- 200 m
- Coordinates
- 41.48°, -87.33°
Merrillville is a city in United States with a population of approximately 35.2K. Average temperatures range from -5°C (22°F) in January to 28°C (82°F) in July. The best time to visit is June, July, August, September. The city sits at an elevation of 200 m above sea level.
Time in Merrillville right now
Open full time & time zone page 13:39 39
Monday, June 15, 2026
IANA time zone
America/Chicago
Daylight saving
DST in effect
CST / CDT
Next DST change
November 1
backward -1h
Live weather in Merrillville
Daylight in Merrillville today
View full sunrise & sunset page Sunrise
Sunset
Day length
15h 10m
Climate normals for Merrillville
Long-term monthly averages based on historical data.
January
Poor 
February
Poor March
Poor April
Fair May
Good June best
Excellent July best
Excellent August best
Excellent September best
Excellent October
Good November
Poor December
Poor | Month | Temp | Feels Like | Rain | Sun | Humidity | UV | Status | Details |
|---|---|---|---|---|---|---|---|---|
| January | 1°C / -5°C | -4°C / -11°C | 10days (70 mm) Wet | 5h Fair | 74% Muggy | 2.1 Moderate | Poor | View Details |
| February | 4°C / -4°C | -1°C / -9°C | 9days (64 mm) Wet | 6.9h Fair | 71% Muggy | 3.4 Moderate | Poor | View Details |
| March | 10°C / 1°C | 6°C / -4°C | 12days (107 mm) Wet | 7.8h Good | 69% Muggy | 4.5 Moderate | Poor | View Details |
| April | 15°C / 5°C | 12°C / 1°C | 14days (108 mm) Wet | 9.1h Good | 69% Muggy | 5.4 High | Fair | View Details |
| May | 20°C / 11°C | 20°C / 9°C | 14days (127 mm) Wet | 10.4h Excellent | 73% Muggy | 6.6 High | Good | View Details |
| June best | 26°C / 17°C | 28°C / 17°C | 11days (107 mm) Wet | 12h Excellent | 70% Muggy | 7 High | Excellent | View Details |
| July best | 28°C / 20°C | 31°C / 21°C | 11days (107 mm) Wet | 12.1h Excellent | 75% Muggy | 7 High | Excellent | View Details |
| August best | 27°C / 19°C | 30°C / 20°C | 11days (94 mm) Wet | 11.4h Excellent | 74% Muggy | 6.6 High | Excellent | View Details |
| September best | 25°C / 16°C | 25°C / 16°C | 8days (67 mm) Wet | 9.8h Good | 71% Muggy | 5.3 High | Excellent | View Details |
| October | 18°C / 10°C | 16°C / 7°C | 11days (114 mm) Wet | 7.5h Good | 69% Muggy | 3.8 Moderate | Good | View Details |
| November | 10°C / 3°C | 6°C / -2°C | 8days (63 mm) Wet | 6.1h Fair | 70% Muggy | 2.6 Moderate | Poor | View Details |
| December | 4°C / -2°C | 0°C / -7°C | 9days (63 mm) Wet | 5.1h Fair | 73% Muggy | 1.8 Low | Poor | View Details |
Monthly Temperatures
HighLow
Line chart showing monthly temperatures. Jan: 1°C / -5°C . Feb: 4°C / -4°C . Mar: 10°C / 1°C . Apr: 15°C / 5°C . May: 20°C / 11°C . Jun: 26°C / 17°C . Jul: 28°C / 20°C . Aug: 27°C / 19°C . Sep: 25°C / 16°C . Oct: 18°C / 10°C . Nov: 10°C / 3°C . Dec: 4°C / -2°C .
Monthly Rainfall
Rainfall
Bar chart showing monthly rainfall. Jan: 70 mm. Feb: 64 mm. Mar: 107 mm. Apr: 108 mm. May: 127 mm. Jun: 107 mm. Jul: 107 mm. Aug: 94 mm. Sep: 67 mm. Oct: 114 mm. Nov: 63 mm. Dec: 63 mm.
Monthly Humidity
Humidity
Line chart showing monthly humidity. Jan: 74%. Feb: 71%. Mar: 69%. Apr: 69%. May: 73%. Jun: 70%. Jul: 75%. Aug: 74%. Sep: 71%. Oct: 69%. Nov: 70%. Dec: 73%.
Monthly Wind Speed
Wind SpeedGusts
Bar chart showing monthly wind speed. Jan: 23 km/h . Feb: 24 km/h . Mar: 24 km/h . Apr: 23 km/h . May: 20 km/h . Jun: 19 km/h . Jul: 16 km/h . Aug: 16 km/h . Sep: 18 km/h . Oct: 22 km/h . Nov: 23 km/h . Dec: 23 km/h .
UV Index
UV Index
Bar chart showing monthly UV index. Jan: UV 2. Feb: UV 3. Mar: UV 5. Apr: UV 5. May: UV 7. Jun: UV 7. Jul: UV 7. Aug: UV 7. Sep: UV 5. Oct: UV 4. Nov: UV 3. Dec: UV 2.
Frequently Asked Questions
Merrillville has a population of approximately 35.2K.
The best months to visit Merrillville are June, July, August, September, when temperatures are pleasant and rainfall is lower.
Merrillville receives approximately 1091mm of rainfall annually across 128 rainy days.
Merrillville is located in United States, in the Americas region.
Merrillville sits at an elevation of 200 m (656 ft) above sea level.