Onalaska Weather Forecast 15 Days, Weather in Onalaska Today
Current weather conditions and 15 day weather forecast for Onalaska, 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 Onalaska
| 16 March 2026 Monday 8.3 ° C / 46.9°F  Overcast |
Feels Like : 8.1 ° C / 46.5°F Humidity : % 93 Pressure : 1023 mb Wind Speed : 4.3 kmph / 2.7 miles from SSE  Visibility : 16 km Precipitation (rainfall) : 0 mm Cloud (%) : 100 |
15 day weather forecast for Onalaska, WA, USA
Weather Forecast for next 15 Days for Onalaska 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 Onalaska, 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 | |
|---|---|---|---|---|---|---|---|---|---|---|
| 16 March 2026 Monday |  Patchy rain nearby |
7 ° C (44.6°F) |
18.9 ° C (66°F) |
11.8 ° C (53.2°F) |
% 76 | 89% | 0.3 | Sunrise:07:22 AM Sunset: 07:19 PM |
Moonrise:06:28 AM Moonset: 04:50 PM Moon Phase ( Waning Crescent ) |
|
| 17 March 2026 Tuesday |  Heavy rain |
8.6 ° C (47.5°F) |
10.7 ° C (51.2°F) |
10.5 ° C (51°F) |
% 79 | 87% | 0 | Sunrise:07:20 AM Sunset: 07:20 PM |
Moonrise:06:47 AM Moonset: 06:06 PM Moon Phase ( Waning Crescent ) |
|
| 18 March 2026 Wednesday | Heavy rain |
7.6 ° C (45.7°F) |
9.4 ° C (48.9°F) |
9 ° C (48.3°F) |
% 94 | 88% | 2 | Sunrise:07:18 AM Sunset: 07:22 PM |
Moonrise:07:05 AM Moonset: 07:23 PM Moon Phase ( Waning Crescent ) |
|
| 19 March 2026 Thursday |  Moderate rain |
9.5 ° C (49°F) |
11.3 ° C (52.4°F) |
10.3 ° C (50.6°F) |
% 96 | 87% | 3 | Sunrise:07:16 AM Sunset: 07:23 PM |
Moonrise:07:23 AM Moonset: 08:41 PM Moon Phase ( New Moon ) |
|
| 20 March 2026 Friday | Patchy rain nearby |
5.4 ° C (41.7°F) |
11.1 ° C (52°F) |
10.2 ° C (50.4°F) |
% 98 | 89% | 3 | Sunrise:07:14 AM Sunset: 07:24 PM |
Moonrise:07:42 AM Moonset: 10:03 PM Moon Phase ( Waxing Crescent ) |
|
| 21 March 2026 Saturday | Patchy rain nearby |
-0.4 ° C (31.2°F) |
8.9 ° C (48.1°F) |
3.9 ° C (39°F) |
% 79 | 83% | 1 | Sunrise:07:12 AM Sunset: 07:26 PM |
Moonrise:08:04 AM Moonset: 11:27 PM Moon Phase ( Waxing Crescent ) |
|
| 22 March 2026 Sunday |  Sunny |
-1.1 ° C (30°F) |
10.8 ° C (51.4°F) |
3.9 ° C (39.1°F) |
% 74 | 0% | 2 | Sunrise:07:10 AM Sunset: 07:27 PM |
Moonrise:08:32 AM Moonset: No moonset Moon Phase ( Waxing Crescent ) |
|
| 23 March 2026 Monday | Sunny |
-1.8 ° C (28.7°F) |
11.7 ° C (53.1°F) |
4.4 ° C (39.9°F) |
% 75 | 0% | 2 | Sunrise:07:08 AM Sunset: 07:29 PM |
Moonrise:09:10 AM Moonset: 12:51 AM Moon Phase ( Waxing Crescent ) |
|
| 24 March 2026 Tuesday | Patchy rain nearby |
-1 ° C (30.1°F) |
9.3 ° C (48.8°F) |
3.2 ° C (37.8°F) |
% 89 | 81% | 1 | Sunrise:07:06 AM Sunset: 07:30 PM |
Moonrise:09:59 AM Moonset: 02:09 AM Moon Phase ( Waxing Crescent ) |
|
| 25 March 2026 Wednesday | Patchy rain nearby |
-2.9 ° C (26.8°F) |
9.1 ° C (48.3°F) |
2.4 ° C (36.3°F) |
% 76 | 68% | 1 | Sunrise:07:04 AM Sunset: 07:31 PM |
Moonrise:11:02 AM Moonset: 03:16 AM Moon Phase ( First Quarter ) |
|
| 26 March 2026 Thursday | Sunny |
-2.6 ° C (27.4°F) |
17.8 ° C (64°F) |
6.8 ° C (44.2°F) |
% 70 | 0% | 3 | Sunrise:07:02 AM Sunset: 07:33 PM |
Moonrise:12:16 PM Moonset: 04:08 AM Moon Phase ( Waxing Gibbous ) |
|
| 27 March 2026 Friday | Overcast |
3.2 ° C (37.7°F) |
16.8 ° C (62.3°F) |
9.3 ° C (48.8°F) |
% 71 | 0% | 2 | Sunrise:07:00 AM Sunset: 07:34 PM |
Moonrise:01:36 PM Moonset: 04:47 AM Moon Phase ( Waxing Gibbous ) |
|
| 28 March 2026 Saturday | Overcast |
5.6 ° C (42.2°F) |
17 ° C (62.6°F) |
10.5 ° C (51°F) |
% 76 | 0% | 3 | Sunrise:06:58 AM Sunset: 07:35 PM |
Moonrise:02:54 PM Moonset: 05:16 AM Moon Phase ( Waxing Gibbous ) |
|
| 29 March 2026 Sunday | Patchy rain nearby |
3.2 ° C (37.8°F) |
9.1 ° C (48.4°F) |
7.1 ° C (44.8°F) |
% 93 | 89% | 2 | Sunrise:06:56 AM Sunset: 07:37 PM |
Moonrise:04:10 PM Moonset: 05:38 AM Moon Phase ( Waxing Gibbous ) |
|
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