Grissom Air Reserve Base Weather Forecast 15 Days, Weather in GUS Today
Current weather conditions and 15 day weather forecast for Grissom Air Reserve Base, 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 Grissom Air Reserve Base
| 15 December 2025 Monday -13.3 ° C / 8.1°F  Partly cloudy |
Feels Like : -22.6 ° C / -8.6°F Humidity : % 58 Pressure : 1029 mb Wind Speed : 22.7 kmph / 14.1 miles from SSW  Visibility : 16 km Precipitation (rainfall) : 0 mm Cloud (%) : 75 |
15 day weather forecast for Grissom Air Reserve Base, IN, USA
Weather Forecast for next 15 Days for Grissom Air Reserve Base 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 Grissom Air Reserve Base, 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 | |
|---|---|---|---|---|---|---|---|---|---|---|
| 15 December 2025 Monday |  Sunny |
-19.3 ° C (-2.7°F) |
-3.4 ° C (25.9°F) |
-11.6 ° C (11.2°F) |
% 67 | 0% | 0.4 | Sunrise:08:02 AM Sunset: 05:19 PM |
Moonrise:04:01 AM Moonset: 02:16 PM Moon Phase ( Waning Crescent ) |
|
| 16 December 2025 Tuesday | Partly Cloudy |
-8.1 ° C (17.4°F) |
4.1 ° C (39.4°F) |
-3.5 ° C (25.6°F) |
% 81 | 0% | 0.4 | Sunrise:08:02 AM Sunset: 05:19 PM |
Moonrise:05:03 AM Moonset: 02:43 PM Moon Phase ( Waning Crescent ) |
|
| 17 December 2025 Wednesday |  Overcast |
-1.6 ° C (29.1°F) |
0.5 ° C (32.9°F) |
-0.4 ° C (31.3°F) |
% 97 | 0% | 0.3 | Sunrise:08:03 AM Sunset: 05:19 PM |
Moonrise:06:06 AM Moonset: 03:15 PM Moon Phase ( Waning Crescent ) |
|
| 18 December 2025 Thursday |  Moderate rain |
-0.9 ° C (30.3°F) |
11.2 ° C (52.2°F) |
4.6 ° C (40.3°F) |
% 86 | 71% | 0 | Sunrise:08:03 AM Sunset: 05:20 PM |
Moonrise:07:08 AM Moonset: 03:55 PM Moon Phase ( Waning Crescent ) |
|
| 19 December 2025 Friday |  Blowing snow |
-9 ° C (15.7°F) |
-3.1 ° C (26.5°F) |
-4.8 ° C (23.3°F) |
% 67 | 74% | 0 | Sunrise:08:04 AM Sunset: 05:20 PM |
Moonrise:08:05 AM Moonset: 04:43 PM Moon Phase ( New Moon ) |
|
| 20 December 2025 Saturday |  Patchy rain nearby |
-4.1 ° C (24.6°F) |
7.2 ° C (45°F) |
2.1 ° C (35.7°F) |
% 64 | 66% | 1 | Sunrise:08:05 AM Sunset: 05:20 PM |
Moonrise:08:57 AM Moonset: 05:39 PM Moon Phase ( New Moon ) |
|
| 21 December 2025 Sunday |  Moderate or heavy snow showers |
-5.5 ° C (22°F) |
-0.5 ° C (31°F) |
-1.6 ° C (29.1°F) |
% 81 | 67% | 1 | Sunrise:08:05 AM Sunset: 05:21 PM |
Moonrise:09:41 AM Moonset: 06:40 PM Moon Phase ( Waxing Crescent ) |
|
| 22 December 2025 Monday | Sunny |
-7 ° C (19.5°F) |
0.9 ° C (33.6°F) |
-3.3 ° C (26.1°F) |
% 69 | 0% | 2 | Sunrise:08:06 AM Sunset: 05:21 PM |
Moonrise:10:18 AM Moonset: 07:46 PM Moon Phase ( Waxing Crescent ) |
|
| 23 December 2025 Tuesday | Partly Cloudy |
-0.1 ° C (31.9°F) |
7.7 ° C (45.8°F) |
4.7 ° C (40.5°F) |
% 77 | 0% | 2 | Sunrise:08:06 AM Sunset: 05:22 PM |
Moonrise:10:48 AM Moonset: 08:53 PM Moon Phase ( Waxing Crescent ) |
|
| 24 December 2025 Wednesday |  Cloudy |
-2 ° C (28.5°F) |
5.5 ° C (41.9°F) |
3.7 ° C (38.7°F) |
% 75 | 0% | 1 | Sunrise:08:06 AM Sunset: 05:23 PM |
Moonrise:11:15 AM Moonset: 10:00 PM Moon Phase ( Waxing Crescent ) |
|
| 25 December 2025 Thursday |  Light freezing rain |
-4.9 ° C (23.2°F) |
-1.1 ° C (30°F) |
-2.9 ° C (26.9°F) |
% 53 | 69% | 1 | Sunrise:08:07 AM Sunset: 05:23 PM |
Moonrise:11:38 AM Moonset: 11:07 PM Moon Phase ( Waxing Crescent ) |
|
| 26 December 2025 Friday |  Moderate snow |
-6.7 ° C (19.9°F) |
-0.7 ° C (30.7°F) |
-2.1 ° C (28.2°F) |
% 80 | 70% | 1 | Sunrise:08:07 AM Sunset: 05:24 PM |
Moonrise:12:00 PM Moonset: No moonset Moon Phase ( Waxing Crescent ) |
|
| 27 December 2025 Saturday |  Light snow |
-10.1 ° C (13.7°F) |
-8 ° C (17.6°F) |
-8.8 ° C (16.2°F) |
% 67 | 81% | 1 | Sunrise:08:07 AM Sunset: 05:25 PM |
Moonrise:12:22 PM Moonset: 12:14 AM Moon Phase ( First Quarter ) |
|
| 28 December 2025 Sunday | Partly Cloudy |
-10.1 ° C (13.8°F) |
-1.9 ° C (28.6°F) |
-5.7 ° C (21.7°F) |
% 68 | 0% | 2 | Sunrise:08:08 AM Sunset: 05:25 PM |
Moonrise:12:45 PM Moonset: 01:25 AM Moon Phase ( Waxing Gibbous ) |
|
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