Arco Weather Forecast
- 50
- 81
Slight Chance Thunderstorms
- 53
- 82
Mostly Sunny
- 55
- 85
Mostly Sunny
- 50
- 83
Chance Rain Showers
- 43
- 72
Chance Rain Showers
- 42
- 64
Rain Showers Likely
- 44
- 67
Chance Rain Showers
Today 29 May Lost River Valleys
Sunny. A slight chance of Showers and Thunderstorms in the afternoon. Highs 76 to 86. Light and variable Winds becoming west 10 to 15 Mph in the afternoon.
Tonight 29 May Lost River Valleys
Mostly clear. Lows 47 to 54. West Winds 10 to 15 Mph. Shifting to northwest after midnight.
Arco Temperature Statistics
May Temperature
Hailey, Friedman Memorial Airport (51 miles)
Lowest 15 May, 2025
32 °FAverage May
48.9 °FHighest 10 May, 2025
80.6 °F
Climate (2020–Present)
Hailey, Friedman Memorial Airport (51 miles)
Average Low 2020–2025
33.8 °FAverage 2020–2025
42.1 °FAverage High 2020–2025
55.8 °F