| NWS Forecast for: Ontario OR Issued by: National Weather Service Boise, ID Last Update: 12:29 pm MDT Apr 30, 2026 | |
| Tonight: Mostly clear, with a low around 41. North wind around 5 mph becoming calm in the evening. Friday: Sunny, with a high near 76. Calm wind becoming south southeast around 6 mph in the afternoon. Friday Night: Partly cloudy, with a low around 44. East wind around 6 mph becoming calm after midnight. Saturday: Partly sunny, with a high near 79. Calm wind becoming east southeast around 6 mph in the afternoon. Saturday Night: Mostly cloudy, with a low around 47. East wind around 6 mph becoming light and variable after midnight. Sunday: Mostly sunny, with a high near 82. Sunday Night: Mostly clear, with a low around 52. Monday: Sunny, with a high near 83. Monday Night: Mostly clear, with a low around 52. Tuesday: Sunny, with a high near 83. Tuesday Night: Mostly clear, with a low around 53. Wednesday: Sunny, with a high near 84. Wednesday Night: Mostly clear, with a low around 54. Thursday: Sunny, with a high near 86. | |
| Ontario OR 44.03°N 116.97°W (Elev. 2103 ft) | |
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