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
| 07 August 2026 Friday 25.7 ° C / 78.3°F  Sunny |
Feels Like : 28.2 ° C / 82.8°F Humidity : % 79 Pressure : 1017 mb Wind Speed : 7.6 kmph / 4.7 miles from SSW  Visibility : 9 km Precipitation (rainfall) : 0 mm Cloud (%) : 16 |
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 | |
|---|---|---|---|---|---|---|---|---|---|---|
| 06 August 2026 Thursday | Sunny |
18.8 ° C (65.8°F) |
25.7 ° C (78.3°F) |
22.9 ° C (73.3°F) |
% 87 | 15% | 5.9 | Sunrise:05:49 AM Sunset: 08:01 PM |
Moonrise:11:41 PM Moonset: 02:21 PM Moon Phase ( Last Quarter ) |
|
| 07 August 2026 Friday | Sunny |
20.1 ° C (68.2°F) |
27.4 ° C (81.2°F) |
23.7 ° C (74.6°F) |
% 88 | 62% | 7.3 | Sunrise:05:50 AM Sunset: 08:00 PM |
Moonrise:Does not rise today Moonset: 03:34 PM Moon Phase ( Waning Crescent ) |
|
| 08 August 2026 Saturday | Sunny |
19.8 ° C (67.7°F) |
28.5 ° C (83.4°F) |
23.6 ° C (74.5°F) |
% 77 | 61% | 6.6 | Sunrise:05:51 AM Sunset: 07:59 PM |
Moonrise:12:25 AM Moonset: 04:44 PM Moon Phase ( Waning Crescent ) |
|
| 09 August 2026 Sunday | Sunny |
18.6 ° C (65.4°F) |
30.1 ° C (86.2°F) |
24.5 ° C (76.1°F) |
% 80 | 70% | 5.9 | Sunrise:05:52 AM Sunset: 07:57 PM |
Moonrise:01:22 AM Moonset: 05:47 PM Moon Phase ( Waning Crescent ) |
|
| 10 August 2026 Monday |  Patchy rain nearby |
20.2 ° C (68.4°F) |
28.4 ° C (83.2°F) |
23.2 ° C (73.7°F) |
% 90 | 86% | 5.3 | Sunrise:05:53 AM Sunset: 07:56 PM |
Moonrise:02:33 AM Moonset: 06:39 PM Moon Phase ( New Moon ) |
|
| 11 August 2026 Tuesday |  Light rain shower |
18.8 ° C (65.9°F) |
26.2 ° C (79.2°F) |
20.9 ° C (69.6°F) |
% 93 | 88% | 6 | Sunrise:05:54 AM Sunset: 07:55 PM |
Moonrise:03:53 AM Moonset: 07:20 PM Moon Phase ( New Moon ) |
|
| 12 August 2026 Wednesday |  Fog |
19 ° C (66.2°F) |
24.8 ° C (76.6°F) |
20.7 ° C (69.3°F) |
% 93 | 89% | 6 | Sunrise:05:55 AM Sunset: 07:53 PM |
Moonrise:05:16 AM Moonset: 07:54 PM Moon Phase ( New Moon ) |
|
| 13 August 2026 Thursday | Sunny |
14.1 ° C (57.4°F) |
21.5 ° C (70.8°F) |
18.3 ° C (64.9°F) |
% 68 | 6% | 6 | Sunrise:05:56 AM Sunset: 07:52 PM |
Moonrise:06:39 AM Moonset: 08:21 PM Moon Phase ( New Moon ) |
|
| 14 August 2026 Friday | Sunny |
12.5 ° C (54.4°F) |
23.6 ° C (74.5°F) |
17.8 ° C (64.1°F) |
% 69 | 5% | 6 | Sunrise:05:57 AM Sunset: 07:50 PM |
Moonrise:07:58 AM Moonset: 08:46 PM Moon Phase ( Waxing Crescent ) |
|
| 15 August 2026 Saturday | Sunny |
14 ° C (57.2°F) |
24.1 ° C (75.4°F) |
18.8 ° C (65.9°F) |
% 74 | 7% | 6 | Sunrise:05:58 AM Sunset: 07:49 PM |
Moonrise:09:14 AM Moonset: 09:10 PM Moon Phase ( Waxing Crescent ) |
|
| 16 August 2026 Sunday | Patchy rain nearby |
16.5 ° C (61.6°F) |
28.6 ° C (83.4°F) |
22.4 ° C (72.3°F) |
% 83 | 47% | 7 | Sunrise:05:59 AM Sunset: 07:48 PM |
Moonrise:10:29 AM Moonset: 09:34 PM Moon Phase ( Waxing Crescent ) |
|
| 17 August 2026 Monday | Patchy rain nearby |
19.9 ° C (67.8°F) |
28.8 ° C (83.9°F) |
24.2 ° C (75.6°F) |
% 80 | 66% | 7 | Sunrise:06:00 AM Sunset: 07:46 PM |
Moonrise:11:42 AM Moonset: 10:00 PM Moon Phase ( Waxing Crescent ) |
|
| 18 August 2026 Tuesday | Sunny |
16.4 ° C (61.5°F) |
21.3 ° C (70.3°F) |
18.9 ° C (66.1°F) |
% 68 | 10% | 6 | Sunrise:06:01 AM Sunset: 07:45 PM |
Moonrise:12:53 PM Moonset: 10:30 PM Moon Phase ( First Quarter ) |
|
| 19 August 2026 Wednesday | Sunny |
13.6 ° C (56.5°F) |
23 ° C (73.3°F) |
18.3 ° C (64.9°F) |
% 62 | 5% | 6 | Sunrise:06:02 AM Sunset: 07:43 PM |
Moonrise:02:03 PM Moonset: 11:05 PM Moon Phase ( First Quarter ) |
|
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