Sunday
Mostly sunny
High:
59°F
Mostly sunny, with a high near 59. Calm wind becoming southeast 5 to 7 mph in the afternoon.
Ontario, OR Weather - Extended Forecast
Sunday Night
Showers likely
Overnight low:
41°F
Showers likely, mainly after midnight. Mostly cloudy, with a low around 41. Chance of precipitation is 70%.
Monday
Showers
High:
57°F
Showers. High near 57. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Monday Night
Showers likely
Overnight low:
37°F
Showers likely, mainly before midnight. Mostly cloudy, with a low around 37. Chance of precipitation is 60%.
Tuesday
Partly sunny
High:
56°F
Tuesday Night
Chance of showers and thunderstorms
Overnight low:
34°F
Wednesday
Chance of showers
High:
55°F
Wednesday Night
Chance of showers
Overnight low:
35°F
Thursday
Chance of showers
High:
58°F