Griffith-Merrillville Airport Weather Forecast 15 Days, Weather in Today
Current weather conditions and 15 day weather forecast for Griffith-Merrillville Airport, Indiana, USA including weather daily high/low temperature, warnings, chance of precipitation, pressure, humidity/wind chill, rain risk, wind speed, cloud, pressure, and UV index.
Current weather conditions at Griffith-Merrillville Airport
| 19 December 2025 Friday 4.2 ° C / 39.6°F  Overcast |
Feels Like : 0.2 ° C / 32.4°F Humidity : % 100 Pressure : 996 mb Wind Speed : 18.7 kmph / 11.6 miles from W  Visibility : 16 km Precipitation (rainfall) : 0.72 mm Cloud (%) : 100 |
15 day weather forecast for Griffith-Merrillville Airport, IN, USA
Weather Forecast for next 15 Days for Griffith-Merrillville Airport including weather warnings, temperature, rain, wind speed, cloud, snow, wind speed and wind direction, pressure and UV index.Here is weather for the next 15 days in Griffith-Merrillville Airport, Indiana state, US. To see the daily forecast, scroll to the table below.
| Date | Weather forecast | Low temperature | High temperature | Avg. temperature | Humidity | Chance of rain | UV Index | Sun Position | Moon Position | |
|---|---|---|---|---|---|---|---|---|---|---|
| 18 December 2025 Thursday |  Moderate rain |
-0.6 ° C (30.9°F) |
10.8 ° C (51.4°F) |
6.2 ° C (43.2°F) |
% 86 | 83% | 0.1 | Sunrise:07:11 AM Sunset: 04:21 PM |
Moonrise:06:16 AM Moonset: 02:56 PM Moon Phase ( Waning Crescent ) |
|
| 19 December 2025 Friday |  Moderate snow |
-10.5 ° C (13.1°F) |
-4.6 ° C (23.7°F) |
-6.4 ° C (20.5°F) |
% 68 | 61% | 0.3 | Sunrise:07:12 AM Sunset: 04:22 PM |
Moonrise:07:14 AM Moonset: 03:44 PM Moon Phase ( New Moon ) |
|
| 20 December 2025 Saturday | Overcast |
-7.3 ° C (18.9°F) |
2.4 ° C (36.3°F) |
-2.1 ° C (28.1°F) |
% 77 | 0% | 0.2 | Sunrise:07:12 AM Sunset: 04:22 PM |
Moonrise:08:06 AM Moonset: 04:40 PM Moon Phase ( New Moon ) |
|
| 21 December 2025 Sunday |  Sunny |
-4.7 ° C (23.5°F) |
0.1 ° C (32.2°F) |
-2.8 ° C (27°F) |
% 74 | 0% | 0.3 | Sunrise:07:13 AM Sunset: 04:23 PM |
Moonrise:08:49 AM Moonset: 05:42 PM Moon Phase ( Waxing Crescent ) |
|
| 22 December 2025 Monday |  Light freezing rain |
-4.7 ° C (23.6°F) |
-0.4 ° C (31.3°F) |
-2.3 ° C (27.8°F) |
% 67 | 83% | 0.2 | Sunrise:07:13 AM Sunset: 04:23 PM |
Moonrise:09:26 AM Moonset: 06:48 PM Moon Phase ( Waxing Crescent ) |
|
| 23 December 2025 Tuesday |  Cloudy |
-0.1 ° C (31.8°F) |
2.7 ° C (36.9°F) |
0.7 ° C (33.3°F) |
% 80 | 0% | 0 | Sunrise:07:14 AM Sunset: 04:24 PM |
Moonrise:09:56 AM Moonset: 07:56 PM Moon Phase ( Waxing Crescent ) |
|
| 24 December 2025 Wednesday |  Patchy rain nearby |
-0.9 ° C (30.4°F) |
2.5 ° C (36.5°F) |
1.1 ° C (34°F) |
% 87 | 79% | 1 | Sunrise:07:14 AM Sunset: 04:24 PM |
Moonrise:10:21 AM Moonset: 09:03 PM Moon Phase ( Waxing Crescent ) |
|
| 25 December 2025 Thursday | Patchy rain nearby |
2.4 ° C (36.3°F) |
15.4 ° C (59.7°F) |
10.2 ° C (50.4°F) |
% 93 | 88% | 3 | Sunrise:07:15 AM Sunset: 04:25 PM |
Moonrise:10:44 AM Moonset: 10:11 PM Moon Phase ( Waxing Crescent ) |
|
| 26 December 2025 Friday | Patchy rain nearby |
3.8 ° C (38.8°F) |
7.5 ° C (45.5°F) |
7.3 ° C (45.1°F) |
% 80 | 0% | 2 | Sunrise:07:15 AM Sunset: 04:26 PM |
Moonrise:11:05 AM Moonset: 11:20 PM Moon Phase ( Waxing Crescent ) |
|
| 27 December 2025 Saturday | Overcast |
3.7 ° C (38.6°F) |
10.6 ° C (51.1°F) |
7.5 ° C (45.5°F) |
% 92 | 0% | 2 | Sunrise:07:15 AM Sunset: 04:26 PM |
Moonrise:11:26 AM Moonset: No moonset Moon Phase ( First Quarter ) |
|
| 28 December 2025 Sunday | Patchy rain nearby |
4.4 ° C (39.9°F) |
9.8 ° C (49.7°F) |
7.8 ° C (46°F) |
% 94 | 85% | 2 | Sunrise:07:15 AM Sunset: 04:27 PM |
Moonrise:11:49 AM Moonset: 12:30 AM Moon Phase ( Waxing Gibbous ) |
|
| 29 December 2025 Monday | Sunny |
1.4 ° C (34.5°F) |
4.1 ° C (39.4°F) |
3.2 ° C (37.7°F) |
% 72 | 0% | 2 | Sunrise:07:16 AM Sunset: 04:28 PM |
Moonrise:12:16 PM Moonset: 01:44 AM Moon Phase ( Waxing Gibbous ) |
|
| 30 December 2025 Tuesday | Sunny |
-0.9 ° C (30.3°F) |
4.6 ° C (40.3°F) |
1.1 ° C (34°F) |
% 63 | 0% | 2 | Sunrise:07:16 AM Sunset: 04:29 PM |
Moonrise:12:48 PM Moonset: 03:02 AM Moon Phase ( Waxing Gibbous ) |
|
| 31 December 2025 Wednesday | Patchy rain nearby |
0.5 ° C (33°F) |
8.5 ° C (47.4°F) |
5.4 ° C (41.7°F) |
% 90 | 87% | 2 | Sunrise:07:16 AM Sunset: 04:29 PM |
Moonrise:01:31 PM Moonset: 04:23 AM Moon Phase ( Waxing Gibbous ) |
|
Add a link to your web page; copy and paste this html to your web page