Tracking Late December Winter Storm Expected to Impact the Northern Plains through the Northeast U.S.
A winter storm system will rapidly intensify over the Midwest on Sunday and track through the Great Lakes on Monday. Periods of heavy snow are anticipated across the Upper Great Lakes late Sunday and continuing into Monday. At least 1/10 inch of ice accumulation is expected from a wintry mix across much of the interior Northeast U.S. starting Sunday afternoon. Read More >
| NWS Forecast for: Illinois Valley OR Issued by: National Weather Service Medford, OR Last Update: 12:42 am PST Dec 28, 2025 |  |
| Overnight: Patchy fog. Widespread freezing fog. Otherwise, mostly cloudy, with a steady temperature around 30. Calm wind. Sunday: Patchy fog before 9am. Widespread freezing fog before 11am. Otherwise, sunny, with a high near 46. Calm wind becoming north around 6 mph in the afternoon. Sunday Night: Widespread dense freezing fog after 10pm. Partly cloudy, with a low around 29. Northeast wind 3 to 5 mph. Monday: Widespread freezing fog before 11am. Mostly sunny, with a high near 52. Light east wind. Monday Night: Widespread freezing fog after 10pm. Partly cloudy, with a low around 32. Light east wind. Tuesday: Widespread freezing fog before 11am. Sunny, with a high near 55. Tuesday Night: Mostly clear, with a low around 34. Wednesday: Mostly sunny, with a high near 56. Wednesday Night: Mostly cloudy, with a low around 36. New Year's Day: A chance of rain. Partly sunny, with a high near 52. Thursday Night: Rain likely. Mostly cloudy, with a low around 37. Friday: Rain likely. Snow level 4100 feet. Mostly cloudy, with a high near 48. Friday Night: A chance of rain. Snow level 3500 feet. Mostly cloudy, with a low around 35. Saturday: A chance of rain. Snow level 3400 feet. Partly sunny, with a high near 47. | |
| Illinois Valley OR 42.11°N 123.69°W (Elev. 1398 ft) | |
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