Jefferson Weather Forecast
- -3
- 14
Decreasing Clouds
- 14
- 21
Chance Snow
- 9
- 31
Snow Showers
- -14
- 16
Mostly Cloudy
- -17
- -2
Cold
- -13
- 4
Cold
Today 20 Jan Southern Coos
Partly sunny in the Morning, then becoming mostly cloudy. Highs around 13. West Winds 10 to 15 Mph with Gusts up to 30 Mph. Wind chill Values as low as 7 below.
Tonight 20 Jan Southern Coos
Partly cloudy in the Evening, then clearing. Lows around 3 below. West Winds around 10 Mph with Gusts up to 25 Mph. Wind chill Values as low as 15 below.
Jefferson Temperature Statistics
January Temperature
Whitefield - Mount Washington Regional Airport (5 miles)
Lowest 2 January, 2026
-17 °FAverage January
21.5 °FHighest 9 January, 2026
46.9 °F
Climate (2021–Present)
Whitefield - Mount Washington Regional Airport (5 miles)
Average Low 2021–2026
32.5 °FAverage 2021–2026
44.1 °FAverage High 2021–2026
55.4 °F