| NWS Forecast for: Ontario OR Issued by: National Weather Service Boise, ID Last Update: 10:20 am MDT Apr 1, 2026 | |
| Today: Showers and thunderstorms before 3pm, then showers and possibly a thunderstorm, mainly after 3pm. High near 58. South wind 7 to 10 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms. Tonight: Showers and thunderstorms before 2am, then scattered showers. Low around 39. South southeast wind 9 to 11 mph becoming west after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms. Thursday: A chance of rain and snow showers before 11am, then rain showers likely. Some thunder is also possible. Mostly cloudy, with a high near 53. West southwest wind 10 to 16 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. Little or no snow accumulation expected. Thursday Night: Mostly clear, with a low around 32. West northwest wind 6 to 16 mph, with gusts as high as 25 mph. Friday: Sunny, with a high near 58. West northwest wind 3 to 5 mph. Friday Night: Clear, with a low around 34. Saturday: Sunny, with a high near 64. Saturday Night: Clear, with a low around 38. Sunday: Sunny, with a high near 70. Sunday Night: Mostly clear, with a low around 41. Monday: Mostly sunny, with a high near 73. Monday Night: Partly cloudy, with a low around 45. Tuesday: Partly sunny, with a high near 74. | |
| Ontario OR 44.03°N 116.97°W (Elev. 2103 ft) | |
Visit your local NWS office at: https://www.weather.gov/boi |