Portneuf River Slough Weather Forecast
- 25
- 33
Mostly Sunny
- 24
- 36
Patchy Freezing Fog
- 23
- 35
Patchy Freezing Fog
- 23
- 36
Partly Sunny
- 23
- 37
Partly Sunny
- 25
- 38
Mostly Cloudy
- 27
- 37
Mostly Cloudy
Today 17 Jan Marsh and Arbon Highlands
Sunny. Highs 29 to 38.
Tonight 17 Jan Marsh and Arbon Highlands
Mostly clear. Patchy dense freezing fog after midnight. Lows 17 to 27.
Portneuf River Slough Temperature Statistics
January Temperature
Pocatello, Pocatello Regional Airport (16.2 miles)
Lowest 11 January, 2026
12.9 °FAverage January
32.1 °FHighest 3 January, 2026
51.1 °F
Climate (2021–Present)
Pocatello, Pocatello Regional Airport (16.2 miles)
Average Low 2021–2026
35.2 °FAverage 2021–2026
48.6 °FAverage High 2021–2026
61.5 °F