| NWS Forecast for: Ontario OR Issued by: National Weather Service Boise, ID Last Update: 12:29 am MDT Apr 17, 2026 | |
Today: Sunny, with a high near 56. Light and variable wind. Tonight: Partly cloudy, with a low around 30. Light east wind. Saturday: Mostly sunny, with a high near 65. Calm wind becoming southeast 5 to 8 mph in the afternoon. Saturday Night: Partly cloudy, with a low around 38. East southeast wind 5 to 8 mph becoming light and variable after midnight. Sunday: Partly sunny, with a high near 71. Calm wind becoming east 5 to 7 mph in the afternoon. Sunday Night: Mostly cloudy, with a low around 44. Monday: Partly sunny, with a high near 75. Monday Night: Partly cloudy, with a low around 48. Tuesday: A 20 percent chance of showers after noon. Mostly sunny, with a high near 74. Tuesday Night: A 40 percent chance of showers. Mostly cloudy, with a low around 48. Wednesday: A 40 percent chance of showers. Partly sunny, with a high near 63. Wednesday Night: A 30 percent chance of showers. Mostly cloudy, with a low around 44. Thursday: A 20 percent chance of showers. Partly sunny, with a high near 62. | |
| Ontario OR 44.03°N 116.97°W (Elev. 2103 ft) | |
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