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
| 08 May 2026 Friday 17.1 ° C / 62.8°F  Partly cloudy |
Feels Like : 17.1 ° C / 62.8°F Humidity : % 63 Pressure : 1010 mb Wind Speed : 11.5 kmph / 7.2 miles from SSW  Visibility : 16 km Precipitation (rainfall) : 0 mm Cloud (%) : 75 |
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 | |
|---|---|---|---|---|---|---|---|---|---|---|
| 08 May 2026 Friday |  Sunny |
6.5 ° C (43.7°F) |
21.3 ° C (70.3°F) |
13.5 ° C (56.2°F) |
% 68 | 0% | 4.8 | Sunrise:05:38 AM Sunset: 07:55 PM |
Moonrise:01:24 AM Moonset: 10:49 AM Moon Phase ( Waning Gibbous ) |
|
| 09 May 2026 Saturday |  Patchy rain nearby |
10.2 ° C (50.3°F) |
23.5 ° C (74.4°F) |
16.2 ° C (61.1°F) |
% 63 | 89% | 6.8 | Sunrise:05:37 AM Sunset: 07:56 PM |
Moonrise:01:53 AM Moonset: 11:55 AM Moon Phase ( Last Quarter ) |
|
| 10 May 2026 Sunday | Partly Cloudy |
9 ° C (48.2°F) |
15.4 ° C (59.7°F) |
12 ° C (53.6°F) |
% 55 | 0% | 7.2 | Sunrise:05:36 AM Sunset: 07:57 PM |
Moonrise:02:18 AM Moonset: 01:01 PM Moon Phase ( Waning Crescent ) |
|
| 11 May 2026 Monday | Sunny |
6.3 ° C (43.3°F) |
12.8 ° C (55.1°F) |
9.6 ° C (49.3°F) |
% 53 | 0% | 6.9 | Sunrise:05:35 AM Sunset: 07:58 PM |
Moonrise:02:41 AM Moonset: 02:09 PM Moon Phase ( Waning Crescent ) |
|
| 12 May 2026 Tuesday | Patchy rain nearby |
5.7 ° C (42.3°F) |
19.1 ° C (66.3°F) |
11.4 ° C (52.5°F) |
% 66 | 73% | 0.4 | Sunrise:05:34 AM Sunset: 07:59 PM |
Moonrise:03:03 AM Moonset: 03:19 PM Moon Phase ( Waning Crescent ) |
|
| 13 May 2026 Wednesday | Partly Cloudy |
8.9 ° C (48.1°F) |
16.8 ° C (62.3°F) |
13.7 ° C (56.6°F) |
% 70 | 0% | 4 | Sunrise:05:32 AM Sunset: 08:00 PM |
Moonrise:03:25 AM Moonset: 04:31 PM Moon Phase ( Waning Crescent ) |
|
| 14 May 2026 Thursday | Partly Cloudy |
7.6 ° C (45.7°F) |
12.7 ° C (54.9°F) |
9.8 ° C (49.6°F) |
% 66 | 0% | 3 | Sunrise:05:31 AM Sunset: 08:01 PM |
Moonrise:03:49 AM Moonset: 05:48 PM Moon Phase ( Waning Crescent ) |
|
| 15 May 2026 Friday | Patchy rain nearby |
7.9 ° C (46.2°F) |
11.3 ° C (52.4°F) |
10 ° C (50°F) |
% 90 | 86% | 2 | Sunrise:05:30 AM Sunset: 08:02 PM |
Moonrise:04:17 AM Moonset: 07:08 PM Moon Phase ( Waning Crescent ) |
|
| 16 May 2026 Saturday | Patchy rain nearby |
11.7 ° C (53.1°F) |
20.7 ° C (69.3°F) |
15.4 ° C (59.8°F) |
% 85 | 88% | 4 | Sunrise:05:29 AM Sunset: 08:03 PM |
Moonrise:04:51 AM Moonset: 08:30 PM Moon Phase ( New Moon ) |
|
| 17 May 2026 Sunday | Patchy rain nearby |
12.9 ° C (55.3°F) |
17.8 ° C (64.1°F) |
15.8 ° C (60.5°F) |
% 96 | 89% | 4 | Sunrise:05:29 AM Sunset: 08:04 PM |
Moonrise:05:36 AM Moonset: 09:50 PM Moon Phase ( Waxing Crescent ) |
|
| 18 May 2026 Monday |  Overcast |
12.5 ° C (54.5°F) |
24.9 ° C (76.9°F) |
18.4 ° C (65.2°F) |
% 78 | 0% | 4 | Sunrise:05:28 AM Sunset: 08:05 PM |
Moonrise:06:33 AM Moonset: 10:59 PM Moon Phase ( Waxing Crescent ) |
|
| 19 May 2026 Tuesday | Sunny |
17.4 ° C (63.4°F) |
27 ° C (80.5°F) |
22.1 ° C (71.8°F) |
% 72 | 0% | 6 | Sunrise:05:27 AM Sunset: 08:06 PM |
Moonrise:07:42 AM Moonset: 11:55 PM Moon Phase ( Waxing Crescent ) |
|
| 20 May 2026 Wednesday | Patchy rain nearby |
20.4 ° C (68.7°F) |
30.3 ° C (86.5°F) |
25 ° C (77.1°F) |
% 71 | 86% | 6 | Sunrise:05:26 AM Sunset: 08:07 PM |
Moonrise:08:59 AM Moonset: No moonset Moon Phase ( Waxing Crescent ) |
|
| 21 May 2026 Thursday | Patchy rain nearby |
20.8 ° C (69.5°F) |
32.3 ° C (90.2°F) |
26.2 ° C (79.1°F) |
% 68 | 72% | 6 | Sunrise:05:25 AM Sunset: 08:08 PM |
Moonrise:10:16 AM Moonset: 12:37 AM Moon Phase ( Waxing Crescent ) |
|
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