| NWS Forecast for: Ontario OR Issued by: National Weather Service Boise, ID Last Update: 12:29 am MDT Apr 26, 2026 | |
| Today: Sunny, with a high near 61. Light west wind becoming northwest 5 to 9 mph in the morning. Winds could gust as high as 20 mph. Tonight: Mostly clear, with a low around 35. North northwest wind 5 to 9 mph becoming light west northwest after midnight. Winds could gust as high as 20 mph. Monday: Mostly sunny, with a high near 63. Calm wind becoming north northwest around 5 mph in the afternoon. Monday Night: Partly cloudy, with a low around 38. North northwest wind 5 to 7 mph becoming calm in the evening. Tuesday: Mostly sunny, with a high near 67. Light and variable wind. Tuesday Night: Partly cloudy, with a low around 42. Wednesday: Sunny, with a high near 71. Wednesday Night: Clear, with a low around 43. Thursday: Sunny, with a high near 74. Thursday Night: Partly cloudy, with a low around 45. Friday: Sunny, with a high near 76. Friday Night: Mostly clear, with a low around 48. Saturday: Mostly sunny, with a high near 79. | |
| Ontario OR 44.03°N 116.97°W (Elev. 2103 ft) | |
Visit your local NWS office at: https://www.weather.gov/boi |