Weather for Jefferson, Oregon
Current Weather
Five Day Weather Forecast
Sat
H: 49°F
L: 27°F
Sun
H: 48°F
L: 29°F
Mon
H: 56°F
L: 36°F
Tue
H: 51°F
L: 35°F
Wed
H: 55°F
L: 40°F
Air Quality
Nitrogen Dioxide: 31.25 μg/m3
Sulphur Dioxide: 3.55 μg/m3
Ozone: 27 μg/m3
Astronomical
Sun Transit: 12:24 AM
Sunset: 5:09 PM
Daylight: 9 hrs 31 mins
Moon Transit: 5:03 PM
Moonset: 12:09 PM
Moon Phase: First Quarter
Moon Illumination: 34.7%
Best Times for Fishing or Hunting
Major Periods
12:00 AM - 12:00 AM4:33 PM - 7:03 PM
Minor Periods
12:00 AM - 12:00 AM9:44 AM - 11:14 AM
Action Rating: 2 out of 5
Cold Weather Advisory issued January 23 at 12:51PM PST until January 24 at 12:00PM PST by NWS Portland OR
Effective: Fri January 23, 2026, 12:51 PM
Expires: Sat January 24, 2026, 12:00 PM
* WHAT...Temperatures and wind chills as low as 15 to 25 degrees Fahrenheit expected. * WHERE...The Lower Elevations of Northwest Oregon, and The Lower Elevations of Southwest Washington. * WHEN...From 10 PM this evening to noon PST Saturday. * IMPACTS...Wind chill values and very cold temperatures can lead to frostbite and hypothermia with prolonged exposure.
Those planning to venture outdoors should use common sense and dress warmly, making sure exposed skin is properly covered to prevent frostbite and/or hypothermia. Use caution while traveling outside. Wear appropriate clothing, a hat, and gloves. Keep pets indoors as much as possible. Make sure outdoor animals have a warm, dry shelter, food, and unfrozen water. Make frequent checks on older family, friends, and neighbors. Ensure portable heaters are used correctly. Do not use generators or grills inside. If you do not have heat in your home or lack shelter, you can call 211 for assistance locating appropriate shelter from the cold.
Weather Forecast
Air Quality
Nitrogen Dioxide: 11.05 μg/m3
Sulphur Dioxide: 2.05 μg/m3
Ozone: 52.32 μg/m3
Astronomical
Sun Transit: 12:24 AM
Sunset: 5:09 PM
Daylight: 9 hrs 31 mins
Moon Transit: 5:03 PM
Moonset: 12:09 PM
Moon Phase: First Quarter
Moon Illumination: 34.7%
Best Times for Fishing or Hunting
Major Periods
12:00 AM - 12:00 AM4:33 PM - 7:03 PM
Minor Periods
12:00 AM - 12:00 AM9:44 AM - 11:14 AM
Action Rating: 2 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 22.29 μg/m3
Sulphur Dioxide: 3.37 μg/m3
Ozone: 37 μg/m3
Astronomical
Sun Transit: 12:24 AM
Sunset: 5:11 PM
Daylight: 9 hrs 33 mins
Moon Transit: 5:53 PM
Moonset: 12:09 AM
Moon Phase: First Quarter
Moon Illumination: 45.8%
Best Times for Fishing or Hunting
Major Periods
12:25 AM - 2:55 AM5:23 PM - 7:53 PM
Minor Periods
10:06 AM - 11:36 AM12:00 AM - 12:00 AM
Action Rating: 3 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 25.85 μg/m3
Sulphur Dioxide: 3.09 μg/m3
Ozone: 24.8 μg/m3
Astronomical
Sun Transit: 12:24 AM
Sunset: 5:12 PM
Daylight: 9 hrs 35 mins
Moon Transit: 6:47 PM
Moonset: 1:27 AM
Moon Phase: First Quarter
Moon Illumination: 57.1%
Best Times for Fishing or Hunting
Major Periods
1:16 AM - 3:46 AM6:17 PM - 8:47 PM
Minor Periods
10:33 AM - 12:03 AM12:57 AM - 2:27 AM
Action Rating: 2 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 23.15 μg/m3
Sulphur Dioxide: 2.75 μg/m3
Ozone: 18.72 μg/m3
Astronomical
Sun Transit: 12:24 AM
Sunset: 5:14 PM
Daylight: 9 hrs 38 mins
Moon Transit: 7:46 PM
Moonset: 2:48 AM
Moon Phase: First Quarter
Moon Illumination: 68.0%
Best Times for Fishing or Hunting
Major Periods
2:11 AM - 4:41 AM7:16 PM - 9:46 PM
Minor Periods
11:07 AM - 12:37 AM2:18 AM - 3:48 AM
Action Rating: 2 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 28.09 μg/m3
Sulphur Dioxide: 3 μg/m3
Ozone: 19.38 μg/m3
Astronomical
Sun Transit: 12:24 AM
Sunset: 5:15 PM
Daylight: 9 hrs 40 mins
Moon Transit: 8:49 PM
Moonset: 4:07 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 78.1%
Best Times for Fishing or Hunting
Major Periods
3:12 AM - 5:42 AM8:19 PM - 10:49 PM
Minor Periods
11:54 AM - 1:24 PM3:37 AM - 5:07 AM
Action Rating: 2 out of 5