Ontario Weather Forecast 15 Days, Weather in Ontario Today
Current weather conditions and 15 day weather forecast for Ontario, 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 Ontario
| 22 December 2025 Monday 0.5 ° C / 33°F  Sunny |
Feels Like : -0.7 ° C / 30.7°F Humidity : % 90 Pressure : 1015 mb Wind Speed : 9.7 kmph / 6 miles from ENE  Visibility : 10 km Precipitation (rainfall) : 0 mm Cloud (%) : 5 |
15 day weather forecast for Ontario, SD, 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, 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 | |
|---|---|---|---|---|---|---|---|---|---|---|
| 22 December 2025 Monday | Sunny |
-2 ° C (28.4°F) |
5.3 ° C (41.5°F) |
0.3 ° C (32.6°F) |
% 86 | 0% | 0.2 | Sunrise:08:12 AM Sunset: 04:59 PM |
Moonrise:10:26 AM Moonset: 07:26 PM Moon Phase ( Waxing Crescent ) |
|
| 23 December 2025 Tuesday |  Freezing fog |
-3.2 ° C (26.2°F) |
-2.3 ° C (27.8°F) |
-2.5 ° C (27.5°F) |
% 97 | 0% | 0.2 | Sunrise:08:12 AM Sunset: 04:59 PM |
Moonrise:10:53 AM Moonset: 08:36 PM Moon Phase ( Waxing Crescent ) |
|
| 24 December 2025 Wednesday | Freezing fog |
-2.4 ° C (27.7°F) |
-1.2 ° C (29.8°F) |
-1.7 ° C (29°F) |
% 96 | 0% | 0.2 | Sunrise:08:12 AM Sunset: 05:00 PM |
Moonrise:11:16 AM Moonset: 09:47 PM Moon Phase ( Waxing Crescent ) |
|
| 25 December 2025 Thursday |  Partly Cloudy |
-8 ° C (17.6°F) |
3.9 ° C (39°F) |
-1.4 ° C (29.5°F) |
% 83 | 0% | 0.2 | Sunrise:08:13 AM Sunset: 05:01 PM |
Moonrise:11:36 AM Moonset: 10:58 PM Moon Phase ( Waxing Crescent ) |
|
| 26 December 2025 Friday | Sunny |
-11.5 ° C (11.3°F) |
-3.5 ° C (25.8°F) |
-7.8 ° C (17.9°F) |
% 67 | 0% | 0 | Sunrise:08:13 AM Sunset: 05:01 PM |
Moonrise:11:54 AM Moonset: No moonset Moon Phase ( Waxing Crescent ) |
|
| 27 December 2025 Saturday | Sunny |
-4.9 ° C (23.2°F) |
6.9 ° C (44.5°F) |
0.2 ° C (32.3°F) |
% 67 | 0% | 2 | Sunrise:08:13 AM Sunset: 05:02 PM |
Moonrise:12:12 PM Moonset: 12:09 AM Moon Phase ( First Quarter ) |
|
| 28 December 2025 Sunday | Sunny |
-1.5 ° C (29.3°F) |
4.7 ° C (40.5°F) |
1.5 ° C (34.7°F) |
% 68 | 0% | 2 | Sunrise:08:13 AM Sunset: 05:03 PM |
Moonrise:12:32 PM Moonset: 01:23 AM Moon Phase ( Waxing Gibbous ) |
|
| 29 December 2025 Monday |  Patchy rain nearby |
2 ° C (35.5°F) |
8.3 ° C (46.9°F) |
5.1 ° C (41.2°F) |
% 72 | 80% | 2 | Sunrise:08:14 AM Sunset: 05:04 PM |
Moonrise:12:56 PM Moonset: 02:40 AM Moon Phase ( Waxing Gibbous ) |
|
| 30 December 2025 Tuesday | Sunny |
-1.5 ° C (29.4°F) |
7 ° C (44.6°F) |
1.7 ° C (35°F) |
% 64 | 0% | 2 | Sunrise:08:14 AM Sunset: 05:05 PM |
Moonrise:01:26 PM Moonset: 04:02 AM Moon Phase ( Waxing Gibbous ) |
|
| 31 December 2025 Wednesday | Sunny |
0.9 ° C (33.7°F) |
14 ° C (57.2°F) |
5.8 ° C (42.5°F) |
% 46 | 0% | 3 | Sunrise:08:14 AM Sunset: 05:05 PM |
Moonrise:02:05 PM Moonset: 05:26 AM Moon Phase ( Waxing Gibbous ) |
|
| 01 January 2026 Thursday |  Overcast |
-0.8 ° C (30.5°F) |
7.3 ° C (45.1°F) |
4.5 ° C (40.1°F) |
% 64 | 0% | 1 | Sunrise:08:14 AM Sunset: 05:06 PM |
Moonrise:02:58 PM Moonset: 06:47 AM Moon Phase ( Waxing Gibbous ) |
|
| 02 January 2026 Friday |  Blizzard |
-10.7 ° C (12.7°F) |
-2.1 ° C (28.2°F) |
-5.2 ° C (22.6°F) |
% 87 | 69% | 1 | Sunrise:08:14 AM Sunset: 05:07 PM |
Moonrise:04:05 PM Moonset: 07:58 AM Moon Phase ( Waxing Gibbous ) |
|
| 03 January 2026 Saturday |  Blowing snow |
-14.7 ° C (5.6°F) |
-12.9 ° C (8.8°F) |
-13.4 ° C (7.8°F) |
% 85 | 85% | 1 | Sunrise:08:14 AM Sunset: 05:08 PM |
Moonrise:05:24 PM Moonset: 08:53 AM Moon Phase ( Full Moon ) |
|
| 04 January 2026 Sunday | Sunny |
-18.5 ° C (-1.4°F) |
-12.5 ° C (9.5°F) |
-15.4 ° C (4.4°F) |
% 84 | 0% | 2 | Sunrise:08:14 AM Sunset: 05:09 PM |
Moonrise:06:46 PM Moonset: 09:35 AM Moon Phase ( Waning Gibbous ) |
|
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