Hourly Weather Forecast - Merrillville, IN

12 AM
27°F
0%
6mph
S
Cloudy
Humidity
56%
Feels like
20°F
Dew Point
13°F
1 AM
28°F
10%
6mph
S
Cloudy
Humidity
55%
Feels like
20°F
Dew Point
13°F
2 AM
28°F
0%
7mph
S
Cloudy
Humidity
55%
Feels like
21°F
Dew Point
14°F
3 AM
29°F
0%
7mph
S
Cloudy
Humidity
54%
Feels like
22°F
Dew Point
15°F
4 AM
29°F
0%
7mph
S
Cloudy
Humidity
55%
Feels like
22°F
Dew Point
15°F
5 AM
31°F
0%
6mph
S
Cloudy
Humidity
53%
Feels like
24°F
Dew Point
15°F
6 AM
32°F
0%
6mph
S
Cloudy
Humidity
51%
Feels like
26°F
Dew Point
16°F
7 AM
33°F
0%
7mph
S
Cloudy
Humidity
49%
Feels like
27°F
Dew Point
16°F
7:12 AM
8 AM
34°F
0%
8mph
S
Cloudy
Humidity
48%
Feels like
27°F
Dew Point
17°F
9 AM
36°F
0%
9mph
SSE
Cloudy
Humidity
46%
Feels like
29°F
Dew Point
17°F
10 AM
38°F
0%
9mph
SSE
Cloudy
Humidity
44%
Feels like
31°F
Dew Point
18°F
11 AM
40°F
0%
10mph
SSE
Cloudy
Humidity
42%
Feels like
34°F
Dew Point
19°F
12 PM
42°F
10%
10mph
SSE
Cloudy
Humidity
41%
Feels like
36°F
Dew Point
20°F
1 PM
43°F
30%
9mph
S
30% Chance of Light Rain
Humidity
42%
Feels like
37°F
Dew Point
21°F
2 PM
43°F
10%
9mph
S
Cloudy
Humidity
44%
Feels like
37°F
Dew Point
22°F
3 PM
42°F
10%
9mph
S
Cloudy
Humidity
48%
Feels like
37°F
Dew Point
24°F
4 PM
41°F
10%
8mph
S
Cloudy
Humidity
52%
Feels like
36°F
Dew Point
25°F
4:23 PM
5 PM
41°F
0%
8mph
S
Cloudy
Humidity
55%
Feels like
35°F
Dew Point
26°F
6 PM
40°F
10%
8mph
S
Mostly Cloudy
Humidity
59%
Feels like
35°F
Dew Point
27°F
7 PM
40°F
10%
7mph
S
Mostly Cloudy
Humidity
63%
Feels like
35°F
Dew Point
29°F
8 PM
40°F
10%
7mph
SSW
Mostly Cloudy
Humidity
66%
Feels like
35°F
Dew Point
30°F
9 PM
40°F
10%
7mph
SSW
Mostly Cloudy
Humidity
70%
Feels like
35°F
Dew Point
31°F
10 PM
40°F
10%
7mph
SSW
Mostly Cloudy
Humidity
74%
Feels like
35°F
Dew Point
32°F
11 PM
40°F
0%
7mph
SSW
Mostly Cloudy
Humidity
78%
Feels like
35°F
Dew Point
34°F

Rain And Snow Totals Through Monday

Atmospheric River Takes Aim For Northern California

The plume of abundant moisture impacting the Northwest the last several days will focus more on Northern California later today into Monday bringing heavy rainfall and mountain snow.

NOAA, NCDC

White Christmas? What Are The Odds

Sunday's Weather Outlook

Sunday's Weather Outlook

Cold weather

During Extreme Cold: Watch for Frostbite!

Flu Update Valid For Week Ending December 13, 2025

Weekly Flu Update: Flu Spreading Hard Across U.S.

Watch vs. Warning

Flash Flood Watch and Warning Defined

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