Ontario Weather Forecast 15 Days, Weather in Ontario Today
Current weather conditions and 15 day weather forecast for Ontario, Wisconsin, 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 Ontario
| 29 March 2026 Sunday 3.3 ° C / 37.9°F  Sunny |
Feels Like : 0.3 ° C / 32.5°F Humidity : % 56 Pressure : 1019 mb Wind Speed : 11.5 kmph / 7.2 miles from SSW  Visibility : 16 km Precipitation (rainfall) : 0 mm Cloud (%) : 0 |
15 day weather forecast for Ontario, WI, USA
Weather Forecast for next 15 Days for Ontario 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 Ontario, Wisconsin 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 | |
|---|---|---|---|---|---|---|---|---|---|---|
| 29 March 2026 Sunday | Sunny |
1.4 ° C (34.5°F) |
20.5 ° C (68.9°F) |
8.9 ° C (48°F) |
% 54 | 0% | 1 | Sunrise:06:49 AM Sunset: 07:26 PM |
Moonrise:04:00 PM Moonset: 05:22 AM Moon Phase ( Waxing Gibbous ) |
|
| 30 March 2026 Monday | Sunny |
3 ° C (37.4°F) |
21.3 ° C (70.3°F) |
12.7 ° C (54.9°F) |
% 77 | 0% | 1.2 | Sunrise:06:47 AM Sunset: 07:27 PM |
Moonrise:05:10 PM Moonset: 05:43 AM Moon Phase ( Waxing Gibbous ) |
|
| 31 March 2026 Tuesday |  Overcast |
3.4 ° C (38.1°F) |
14.6 ° C (58.3°F) |
10.9 ° C (51.5°F) |
% 79 | 0% | 0.5 | Sunrise:06:45 AM Sunset: 07:28 PM |
Moonrise:06:19 PM Moonset: 06:02 AM Moon Phase ( Waxing Gibbous ) |
|
| 01 April 2026 Wednesday |  Patchy rain nearby |
-1.3 ° C (29.7°F) |
6.9 ° C (44.5°F) |
2.7 ° C (36.8°F) |
% 58 | 64% | 1.1 | Sunrise:06:43 AM Sunset: 07:29 PM |
Moonrise:07:27 PM Moonset: 06:20 AM Moon Phase ( Waxing Gibbous ) |
|
| 02 April 2026 Thursday |  Heavy snow |
-3.6 ° C (25.5°F) |
1.8 ° C (35.2°F) |
-1.5 ° C (29.4°F) |
% 89 | 59% | 0 | Sunrise:06:41 AM Sunset: 07:31 PM |
Moonrise:08:33 PM Moonset: 06:38 AM Moon Phase ( Full Moon ) |
|
| 03 April 2026 Friday | Patchy rain nearby |
-1.9 ° C (28.6°F) |
7.9 ° C (46.2°F) |
2 ° C (35.6°F) |
% 82 | 67% | 1 | Sunrise:06:40 AM Sunset: 07:32 PM |
Moonrise:09:41 PM Moonset: 06:59 AM Moon Phase ( Waning Gibbous ) |
|
| 04 April 2026 Saturday | Patchy rain nearby |
-0.7 ° C (30.7°F) |
4.4 ° C (39.9°F) |
1.8 ° C (35.3°F) |
% 85 | 87% | 1 | Sunrise:06:38 AM Sunset: 07:33 PM |
Moonrise:10:48 PM Moonset: 07:22 AM Moon Phase ( Waning Gibbous ) |
|
| 05 April 2026 Sunday |  Cloudy |
-4.2 ° C (24.5°F) |
7.8 ° C (46°F) |
1.3 ° C (34.4°F) |
% 62 | 0% | 1 | Sunrise:06:36 AM Sunset: 07:34 PM |
Moonrise:11:53 PM Moonset: 07:50 AM Moon Phase ( Waning Gibbous ) |
|
| 06 April 2026 Monday |  Light snow |
-4.5 ° C (23.8°F) |
2.1 ° C (35.8°F) |
-0.1 ° C (31.8°F) |
% 85 | 86% | 1 | Sunrise:06:34 AM Sunset: 07:36 PM |
Moonrise:No moonrise Moonset: 08:23 AM Moon Phase ( Waning Gibbous ) |
|
| 07 April 2026 Tuesday |  Light freezing rain |
-6.3 ° C (20.7°F) |
6.4 ° C (43.5°F) |
-0.3 ° C (31.4°F) |
% 67 | 72% | 1 | Sunrise:06:33 AM Sunset: 07:37 PM |
Moonrise:12:55 AM Moonset: 09:06 AM Moon Phase ( Waning Gibbous ) |
|
| 08 April 2026 Wednesday | Patchy rain nearby |
0.6 ° C (33.1°F) |
14.2 ° C (57.6°F) |
6.8 ° C (44.3°F) |
% 90 | 78% | 2 | Sunrise:06:31 AM Sunset: 07:38 PM |
Moonrise:01:50 AM Moonset: 09:57 AM Moon Phase ( Waning Gibbous ) |
|
| 09 April 2026 Thursday |  Moderate rain |
6.5 ° C (43.8°F) |
14.1 ° C (57.3°F) |
11.3 ° C (52.4°F) |
% 93 | 80% | 3 | Sunrise:06:29 AM Sunset: 07:39 PM |
Moonrise:02:36 AM Moonset: 10:55 AM Moon Phase ( Waning Gibbous ) |
|
| 10 April 2026 Friday | Patchy rain nearby |
1.2 ° C (34.1°F) |
4 ° C (39.3°F) |
3 ° C (37.4°F) |
% 87 | 89% | 1 | Sunrise:06:27 AM Sunset: 07:40 PM |
Moonrise:03:15 AM Moonset: 12:00 PM Moon Phase ( Last Quarter ) |
|
| 11 April 2026 Saturday | Patchy rain nearby |
-1.2 ° C (29.9°F) |
6.2 ° C (43.1°F) |
1.9 ° C (35.3°F) |
% 76 | 84% | 1 | Sunrise:06:26 AM Sunset: 07:42 PM |
Moonrise:03:46 AM Moonset: 01:08 PM Moon Phase ( Waning Crescent ) |
|
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