| NWS Forecast for: Ontario OR Issued by: National Weather Service Boise, ID Last Update: 3:04 am MDT Mar 8, 2026 | |
| This Afternoon: Mostly sunny, with a high near 63. Light and variable wind. Tonight: Mostly clear, with a low around 38. East northeast wind around 5 mph becoming west southwest after midnight. Monday: Partly sunny, with a high near 52. North northwest wind 6 to 16 mph. Monday Night: Partly cloudy, with a low around 29. Northwest wind 6 to 14 mph. Tuesday: Mostly sunny, with a high near 48. West northwest wind 6 to 9 mph. Tuesday Night: Mostly cloudy, with a low around 29. Wednesday: Mostly cloudy, with a high near 55. Wednesday Night: Cloudy, with a low around 39. Thursday: A 20 percent chance of rain. Cloudy, with a high near 65. Thursday Night: A 30 percent chance of rain. Mostly cloudy, with a low around 42. Friday: A 30 percent chance of rain. Mostly cloudy, with a high near 62. Friday Night: A 30 percent chance of rain. Mostly cloudy, with a low around 44. Saturday: A 40 percent chance of rain. Cloudy, with a high near 63. | |
| Ontario OR 44.03°N 116.97°W (Elev. 2103 ft) | |
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