Winston Weather Forecast
- 30
- 39
Slight Chance Rain/Snow
- 36
- 49
Rain Likely
- 33
- 50
Rain Likely
- 34
- 55
Chance Rain
- 38
- 55
Chance Rain
- 36
- 61
Rain Likely
- 30
- 52
Rain Likely
Today 14 Oct Canyon Ferry Area
Mostly cloudy. Patchy fog late in the morning. Snow, light freezing drizzle and slight chance of drizzle late in the Morning, then slight chance of rain in the afternoon. No snow accumulation. Highs in the mid 40s. North Winds up to 10 Mph. Chance of precipitation 80 percent.
Tonight 14 Oct Canyon Ferry Area
Mostly cloudy. Patchy fog through the night. A 20 percent chance of rain after midnight. Lows 30 to 35. North Winds up to 10 Mph.
Winston Temperature Statistics
October Temperature
Helena Regional Airport (17.4 miles)
Lowest 6 October, 2025
24.1 °FAverage October
50 °FHighest 10 October, 2025
75.9 °F
Climate (2020–Present)
Helena Regional Airport (17.4 miles)
Average Low 2020–2025
36.1 °FAverage 2020–2025
47.5 °FAverage High 2020–2025
59.3 °F