Altona Weather Forecast
- 38
- 64
Mostly Sunny
- 36
- 64
Partly Sunny
- 45
- 66
Chance Rain Showers
- 39
- 71
Slight Chance Rain Showers
- 41
- 66
Chance Rain Showers
- 42
- 63
Rain Showers Likely
Today 5 Apr Boulder And Jefferson Counties Below 6000 Feet/West Broomfield County
Mostly sunny. Highs 62 to 68.
Tonight 5 Apr Boulder And Jefferson Counties Below 6000 Feet/West Broomfield County
Clear. Lows 29 to 37.
Altona Temperature Statistics
April Temperature
Vance Brand Airport (6.2 miles)
Lowest 2 April, 2026
35.4 °FAverage April
48.7 °FHighest 2 April, 2026
71.8 °F
Climate (2021–Present)
Vance Brand Airport (6.2 miles)
Average Low 2021–2026
38.5 °FAverage 2021–2026
53.4 °FAverage High 2021–2026
68.8 °F