| NWS Forecast for: Ontario Municipal OR Issued by: National Weather Service Boise, ID Last Update: 2:04 pm MST Nov 18, 2025 | |
| Tonight: Patchy fog before 11pm. Otherwise, increasing clouds, with a low around 37. Light northwest wind. Wednesday: Patchy fog between 8am and 11am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 52. Calm wind. Wednesday Night: Patchy fog after 8pm. Otherwise, partly cloudy, with a low around 34. Calm wind. Thursday: Areas of fog before 11am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 53. Calm wind. Thursday Night: Mostly clear, with a low around 30. Calm wind becoming northwest around 5 mph after midnight. Friday: Sunny, with a high near 52. Friday Night: Mostly clear, with a low around 28. Saturday: Mostly sunny, with a high near 50. Saturday Night: Patchy fog after 5am. Otherwise, partly cloudy, with a low around 28. Sunday: Patchy fog before 8am. Otherwise, partly sunny, with a high near 50. Sunday Night: A 20 percent chance of rain. Mostly cloudy, with a low around 31. Monday: A 20 percent chance of rain. Partly sunny, with a high near 49. Monday Night: A 20 percent chance of rain. Partly cloudy, with a low around 27. Tuesday: Mostly sunny, with a high near 45. | |
| Ontario Municipal OR 44.03°N 117.03°W (Elev. 2185 ft) | |
Visit your local NWS office at: https://www.weather.gov/boi |