Keystone XL Opal Heliport Weather Forecast 15 Days, Weather in SD04 Today
Current weather conditions and 15 day weather forecast for Keystone XL Opal Heliport, South Dakota, 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 Keystone XL Opal Heliport
| 05 December 2025 Friday 1.7 ° C / 35.1°F  Clear |
Feels Like : -4.4 ° C / 24.1°F Humidity : % 85 Pressure : 1006 mb Wind Speed : 31.3 kmph / 19.5 miles from WNW  Visibility : 10 km Precipitation (rainfall) : 0 mm Cloud (%) : 0 |
15 day weather forecast for Keystone XL Opal Heliport, SD, USA
Weather Forecast for next 15 Days for Keystone XL Opal Heliport 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 Keystone XL Opal Heliport, South Dakota 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 | |
|---|---|---|---|---|---|---|---|---|---|---|
| 05 December 2025 Friday |  Overcast |
-5.9 ° C (21.4°F) |
1.6 ° C (34.9°F) |
-0.8 ° C (30.5°F) |
% 87 | 0% | 0.1 | Sunrise:07:14 AM Sunset: 04:10 PM |
Moonrise:04:35 PM Moonset: 08:31 AM Moon Phase ( Full Moon ) |
|
| 06 December 2025 Saturday | Overcast |
-4.4 ° C (24.1°F) |
-2.6 ° C (27.3°F) |
-3.1 ° C (26.4°F) |
% 92 | 0% | 0.2 | Sunrise:07:15 AM Sunset: 04:09 PM |
Moonrise:05:49 PM Moonset: 09:35 AM Moon Phase ( Waning Gibbous ) |
|
| 07 December 2025 Sunday |  Moderate or heavy snow showers |
-9.2 ° C (15.4°F) |
-1.1 ° C (30°F) |
-6.2 ° C (20.8°F) |
% 86 | 76% | 0.2 | Sunrise:07:16 AM Sunset: 04:09 PM |
Moonrise:07:10 PM Moonset: 10:22 AM Moon Phase ( Waning Gibbous ) |
|
| 08 December 2025 Monday |  Partly Cloudy |
-8.7 ° C (16.4°F) |
4.1 ° C (39.3°F) |
-1 ° C (30.3°F) |
% 83 | 0% | 0.3 | Sunrise:07:17 AM Sunset: 04:09 PM |
Moonrise:08:30 PM Moonset: 10:57 AM Moon Phase ( Waning Gibbous ) |
|
| 09 December 2025 Tuesday |  Patchy rain nearby |
-1.4 ° C (29.4°F) |
4.7 ° C (40.4°F) |
1.2 ° C (34.1°F) |
% 79 | 59% | 0 | Sunrise:07:18 AM Sunset: 04:09 PM |
Moonrise:09:46 PM Moonset: 11:23 AM Moon Phase ( Waning Gibbous ) |
|
| 10 December 2025 Wednesday |  Light freezing rain |
-2.7 ° C (27.2°F) |
-0.6 ° C (31°F) |
-0.9 ° C (30.4°F) |
% 84 | 72% | 1 | Sunrise:07:19 AM Sunset: 04:09 PM |
Moonrise:10:57 PM Moonset: 11:44 AM Moon Phase ( Waning Gibbous ) |
|
| 11 December 2025 Thursday | Light freezing rain |
-4.2 ° C (24.4°F) |
-0.7 ° C (30.7°F) |
-2.7 ° C (27.1°F) |
% 85 | 72% | 1 | Sunrise:07:20 AM Sunset: 04:09 PM |
Moonrise:No moonrise Moonset: 12:02 PM Moon Phase ( Last Quarter ) |
|
| 12 December 2025 Friday | Light freezing rain |
-10 ° C (14°F) |
-7.7 ° C (18.1°F) |
-7.8 ° C (18°F) |
% 85 | 72% | 1 | Sunrise:07:21 AM Sunset: 04:09 PM |
Moonrise:12:05 AM Moonset: 12:18 PM Moon Phase ( Waning Crescent ) |
|
| 13 December 2025 Saturday |  Light snow |
-11.3 ° C (11.7°F) |
-8.1 ° C (17.5°F) |
-9.8 ° C (14.4°F) |
% 92 | 87% | 1 | Sunrise:07:22 AM Sunset: 04:09 PM |
Moonrise:01:11 AM Moonset: 12:35 PM Moon Phase ( Waning Crescent ) |
|
| 14 December 2025 Sunday | Light freezing rain |
-7.1 ° C (19.2°F) |
-1.5 ° C (29.3°F) |
-4 ° C (24.7°F) |
% 97 | 0% | 1 | Sunrise:07:23 AM Sunset: 04:10 PM |
Moonrise:02:15 AM Moonset: 12:52 PM Moon Phase ( Waning Crescent ) |
|
| 15 December 2025 Monday | Overcast |
-12.9 ° C (8.8°F) |
-9.5 ° C (14.9°F) |
-11.4 ° C (11.5°F) |
% 84 | 0% | 1 | Sunrise:07:23 AM Sunset: 04:10 PM |
Moonrise:03:21 AM Moonset: 01:12 PM Moon Phase ( Waning Crescent ) |
|
| 16 December 2025 Tuesday |  Moderate snow |
-11.4 ° C (11.5°F) |
-5.2 ° C (22.7°F) |
-8.5 ° C (16.8°F) |
% 93 | 73% | 1 | Sunrise:07:24 AM Sunset: 04:10 PM |
Moonrise:04:27 AM Moonset: 01:36 PM Moon Phase ( Waning Crescent ) |
|
| 17 December 2025 Wednesday | Moderate snow |
-24 ° C (-11.3°F) |
-15.9 ° C (3.4°F) |
-17.1 ° C (1.3°F) |
% 92 | 61% | 1 | Sunrise:07:25 AM Sunset: 04:10 PM |
Moonrise:05:33 AM Moonset: 02:06 PM Moon Phase ( Waning Crescent ) |
|
| 18 December 2025 Thursday |  Mist |
-24.8 ° C (-12.6°F) |
-16.1 ° C (3°F) |
-21.1 ° C (-5.9°F) |
% 96 | 63% | 1 | Sunrise:07:25 AM Sunset: 04:11 PM |
Moonrise:06:37 AM Moonset: 02:43 PM Moon Phase ( Waning Crescent ) |
|
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