| NWS Forecast for: Ontario OR Issued by: National Weather Service Boise, ID Last Update: 12:29 pm MDT Oct 21, 2026 | |
| This Afternoon: Sunny, with a high near 73. Calm wind. Tonight: Isolated showers after 10pm. Mostly cloudy, with a low around 46. Light and variable wind. Chance of precipitation is 20%. Thursday: A chance of showers before 3pm, then a chance of showers and thunderstorms between 3pm and 4pm, then showers likely and possibly a thunderstorm after 4pm. Patchy fog between 8am and 10am. Otherwise, partly sunny, with a high near 72. Calm wind becoming east northeast around 5 mph in the afternoon. Chance of precipitation is 60%. Thursday Night: Showers and possibly a thunderstorm. Low around 48. Light and variable wind becoming northwest 8 to 13 mph after midnight. Winds could gust as high as 24 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms. Friday: Showers likely, mainly before 3pm. Mostly cloudy, with a high near 61. Breezy, with a west northwest wind 14 to 20 mph, with gusts as high as 31 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible. Friday Night: Mostly clear, with a low around 31. Saturday: Patchy fog between 8am and 9am. Otherwise, sunny, with a high near 60. Saturday Night: Patchy fog after 5am. Otherwise, mostly clear, with a low around 34. Sunday: Patchy fog before 10am. Otherwise, mostly sunny, with a high near 63. Sunday Night: Partly cloudy, with a low around 35. Monday: Patchy fog. Otherwise, mostly sunny, with a high near 64. Monday Night: A 20 percent chance of showers. Patchy fog. Otherwise, partly cloudy, with a low around 33. Tuesday: Areas of fog. Otherwise, mostly sunny, with a high near 60. | |
| Ontario OR 44.03°N 116.97°W (Elev. 2103 ft) | |
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