Ontario Weather Forecast 15 Days, Weather in Ontario Today
Current weather conditions and 15 day weather forecast for Ontario, Illinois, 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
| 02 July 2026 Thursday 30.7 ° C / 87.3°F  Sunny |
Feels Like : 34.1 ° C / 93.3°F Humidity : % 63 Pressure : 1015 mb Wind Speed : 18.7 kmph / 11.6 miles from SSW  Visibility : 16 km Precipitation (rainfall) : 0 mm Cloud (%) : 0 |
15 day weather forecast for Ontario, IL, 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, Illinois 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 | |
|---|---|---|---|---|---|---|---|---|---|---|
| 01 July 2026 Wednesday | Sunny |
22.3 ° C (72.1°F) |
34.3 ° C (93.7°F) |
28.6 ° C (83.5°F) |
% 70 | 5% | 10.2 | Sunrise:05:32 AM Sunset: 08:37 PM |
Moonrise:10:17 PM Moonset: 07:05 AM Moon Phase ( Waning Gibbous ) |
|
| 02 July 2026 Thursday | Sunny |
21.3 ° C (70.3°F) |
31.8 ° C (89.2°F) |
26.9 ° C (80.5°F) |
% 80 | 36% | 10.1 | Sunrise:05:33 AM Sunset: 08:37 PM |
Moonrise:10:42 PM Moonset: 08:08 AM Moon Phase ( Waning Gibbous ) |
|
| 03 July 2026 Friday | Sunny |
20.9 ° C (69.7°F) |
30.3 ° C (86.5°F) |
25.6 ° C (78°F) |
% 85 | 80% | 9.8 | Sunrise:05:33 AM Sunset: 08:37 PM |
Moonrise:11:04 PM Moonset: 09:10 AM Moon Phase ( Waning Gibbous ) |
|
| 04 July 2026 Saturday | Sunny |
21.1 ° C (70°F) |
31.1 ° C (87.9°F) |
26.6 ° C (79.9°F) |
% 84 | 69% | 8.3 | Sunrise:05:34 AM Sunset: 08:37 PM |
Moonrise:11:24 PM Moonset: 10:12 AM Moon Phase ( Waning Gibbous ) |
|
| 05 July 2026 Sunday |  Patchy rain nearby |
21.3 ° C (70.3°F) |
26.3 ° C (79.3°F) |
23.5 ° C (74.3°F) |
% 91 | 87% | 4.8 | Sunrise:05:34 AM Sunset: 08:36 PM |
Moonrise:11:44 PM Moonset: 11:13 AM Moon Phase ( Last Quarter ) |
|
| 06 July 2026 Monday | Patchy rain nearby |
17.5 ° C (63.6°F) |
23.7 ° C (74.6°F) |
20.7 ° C (69.3°F) |
% 89 | 87% | 6 | Sunrise:05:35 AM Sunset: 08:36 PM |
Moonrise:Does not rise today Moonset: 12:14 PM Moon Phase ( Last Quarter ) |
|
| 07 July 2026 Tuesday |  Light rain shower |
20.4 ° C (68.7°F) |
23.6 ° C (74.6°F) |
21.6 ° C (70.9°F) |
% 97 | 93% | 5 | Sunrise:05:36 AM Sunset: 08:36 PM |
Moonrise:12:04 AM Moonset: 01:18 PM Moon Phase ( Last Quarter ) |
|
| 08 July 2026 Wednesday | Sunny |
18.8 ° C (65.8°F) |
26.5 ° C (79.7°F) |
22.4 ° C (72.3°F) |
% 87 | 17% | 7 | Sunrise:05:36 AM Sunset: 08:35 PM |
Moonrise:12:25 AM Moonset: 02:25 PM Moon Phase ( Waning Crescent ) |
|
| 09 July 2026 Thursday | Sunny |
20 ° C (68°F) |
29.2 ° C (84.5°F) |
24.4 ° C (76°F) |
% 82 | 17% | 7 | Sunrise:05:37 AM Sunset: 08:35 PM |
Moonrise:12:50 AM Moonset: 03:36 PM Moon Phase ( Waning Crescent ) |
|
| 10 July 2026 Friday | Sunny |
20.4 ° C (68.7°F) |
23.1 ° C (73.6°F) |
21.9 ° C (71.4°F) |
% 94 | 90% | 6 | Sunrise:05:38 AM Sunset: 08:35 PM |
Moonrise:01:21 AM Moonset: 04:50 PM Moon Phase ( Waning Crescent ) |
|
| 11 July 2026 Saturday |  Mist |
19.8 ° C (67.6°F) |
28.2 ° C (82.7°F) |
24.2 ° C (75.6°F) |
% 91 | 23% | 7 | Sunrise:05:38 AM Sunset: 08:34 PM |
Moonrise:02:01 AM Moonset: 06:04 PM Moon Phase ( Waning Crescent ) |
|
| 12 July 2026 Sunday | Sunny |
24.4 ° C (75.9°F) |
31.8 ° C (89.3°F) |
27.5 ° C (81.5°F) |
% 87 | 13% | 8 | Sunrise:05:39 AM Sunset: 08:34 PM |
Moonrise:02:53 AM Moonset: 07:14 PM Moon Phase ( New Moon ) |
|
| 13 July 2026 Monday | Sunny |
23.7 ° C (74.7°F) |
31.4 ° C (88.5°F) |
27.7 ° C (81.9°F) |
% 83 | 10% | 8 | Sunrise:05:40 AM Sunset: 08:33 PM |
Moonrise:03:59 AM Moonset: 08:13 PM Moon Phase ( New Moon ) |
|
| 14 July 2026 Tuesday | Sunny |
24.5 ° C (76.1°F) |
31.8 ° C (89.3°F) |
28 ° C (82.4°F) |
% 83 | 11% | 8 | Sunrise:05:41 AM Sunset: 08:33 PM |
Moonrise:05:16 AM Moonset: 09:00 PM Moon Phase ( New Moon ) |
|
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