Southwest Washington Regional Airport Weather Forecast 15 Days, Weather in KLS Today
Current weather conditions and 15 day weather forecast for Southwest Washington Regional Airport, Washington, 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 Southwest Washington Regional Airport
| 18 December 2025 Thursday 7.2 ° C / 45°F  Partly cloudy |
Feels Like : 5.7 ° C / 42.2°F Humidity : % 86 Pressure : 1019 mb Wind Speed : 8.3 kmph / 5.1 miles from SSE  Visibility : 16 km Precipitation (rainfall) : 0 mm Cloud (%) : 50 |
15 day weather forecast for Southwest Washington Regional Airport, WA, USA
Weather Forecast for next 15 Days for Southwest Washington Regional 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 Southwest Washington Regional Airport, Washington 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 |  Heavy rain |
3.7 ° C (38.7°F) |
9.8 ° C (49.6°F) |
6.9 ° C (44.3°F) |
% 92 | 85% | 0 | Sunrise:07:50 AM Sunset: 04:27 PM |
Moonrise:07:06 AM Moonset: 03:00 PM Moon Phase ( Waning Crescent ) |
|
| 19 December 2025 Friday | Heavy rain |
4.1 ° C (39.4°F) |
5.6 ° C (42.1°F) |
5.2 ° C (41.4°F) |
% 90 | 85% | 0.1 | Sunrise:07:50 AM Sunset: 04:28 PM |
Moonrise:08:05 AM Moonset: 03:48 PM Moon Phase ( New Moon ) |
|
| 20 December 2025 Saturday |  Moderate rain |
2.2 ° C (35.9°F) |
5.8 ° C (42.4°F) |
4.6 ° C (40.3°F) |
% 93 | 87% | 0.1 | Sunrise:07:51 AM Sunset: 04:28 PM |
Moonrise:08:55 AM Moonset: 04:45 PM Moon Phase ( New Moon ) |
|
| 21 December 2025 Sunday | Moderate rain |
0.5 ° C (32.9°F) |
6.4 ° C (43.6°F) |
4.3 ° C (39.8°F) |
% 95 | 80% | 0.1 | Sunrise:07:51 AM Sunset: 04:28 PM |
Moonrise:09:36 AM Moonset: 05:51 PM Moon Phase ( Waxing Crescent ) |
|
| 22 December 2025 Monday | Moderate rain |
3.5 ° C (38.3°F) |
6.7 ° C (44.1°F) |
5 ° C (40.9°F) |
% 95 | 80% | 0 | Sunrise:07:52 AM Sunset: 04:29 PM |
Moonrise:10:08 AM Moonset: 07:01 PM Moon Phase ( Waxing Crescent ) |
|
| 23 December 2025 Tuesday |  Patchy rain nearby |
1.5 ° C (34.6°F) |
5.4 ° C (41.7°F) |
3.6 ° C (38.5°F) |
% 96 | 89% | 1 | Sunrise:07:52 AM Sunset: 04:30 PM |
Moonrise:10:34 AM Moonset: 08:12 PM Moon Phase ( Waxing Crescent ) |
|
| 24 December 2025 Wednesday | Patchy rain nearby |
2.8 ° C (37°F) |
7.2 ° C (45°F) |
4.5 ° C (40.1°F) |
% 94 | 84% | 1 | Sunrise:07:53 AM Sunset: 04:30 PM |
Moonrise:10:55 AM Moonset: 09:25 PM Moon Phase ( Waxing Crescent ) |
|
| 25 December 2025 Thursday |  Overcast |
1.6 ° C (34.8°F) |
6 ° C (42.8°F) |
3.3 ° C (37.9°F) |
% 92 | 0% | 1 | Sunrise:07:53 AM Sunset: 04:31 PM |
Moonrise:11:13 AM Moonset: 10:36 PM Moon Phase ( Waxing Crescent ) |
|
| 26 December 2025 Friday | Partly Cloudy |
-3.4 ° C (25.9°F) |
5.6 ° C (42°F) |
1.2 ° C (34.1°F) |
% 89 | 0% | 2 | Sunrise:07:53 AM Sunset: 04:32 PM |
Moonrise:11:31 AM Moonset: 11:50 PM Moon Phase ( Waxing Crescent ) |
|
| 27 December 2025 Saturday |  Sunny |
-3.7 ° C (25.3°F) |
7.2 ° C (45°F) |
0.4 ° C (32.7°F) |
% 88 | 0% | 2 | Sunrise:07:54 AM Sunset: 04:32 PM |
Moonrise:11:48 AM Moonset: No moonset Moon Phase ( First Quarter ) |
|
| 28 December 2025 Sunday | Patchy rain nearby |
1.9 ° C (35.4°F) |
5.5 ° C (42°F) |
4.1 ° C (39.4°F) |
% 93 | 89% | 1 | Sunrise:07:54 AM Sunset: 04:33 PM |
Moonrise:12:07 PM Moonset: 01:05 AM Moon Phase ( Waxing Gibbous ) |
|
| 29 December 2025 Monday | Patchy rain nearby |
-0.6 ° C (30.9°F) |
6.4 ° C (43.4°F) |
1.6 ° C (34.9°F) |
% 92 | 81% | 1 | Sunrise:07:54 AM Sunset: 04:34 PM |
Moonrise:12:29 PM Moonset: 02:24 AM Moon Phase ( Waxing Gibbous ) |
|
| 30 December 2025 Tuesday | Patchy rain nearby |
-0.9 ° C (30.4°F) |
4.5 ° C (40.1°F) |
2 ° C (35.6°F) |
% 95 | 89% | 1 | Sunrise:07:54 AM Sunset: 04:35 PM |
Moonrise:12:58 PM Moonset: 03:47 AM Moon Phase ( Waxing Gibbous ) |
|
| 31 December 2025 Wednesday | Moderate rain |
4.1 ° C (39.4°F) |
12.4 ° C (54.4°F) |
9 ° C (48.3°F) |
% 91 | 87% | 2 | Sunrise:07:54 AM Sunset: 04:36 PM |
Moonrise:01:37 PM Moonset: 05:13 AM Moon Phase ( Waxing Gibbous ) |
|
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