Supai Weather Forecast
- 63
- 87
Rain Showers Likely
- 62
- 87
Chance Thunderstorms
- 60
- 88
Mostly Sunny
- 60
- 88
Mostly Sunny
- 61
- 89
Partly Sunny
- 59
- 87
Slight Chance Thunderstorms
Today 16 Sep Grand Canyon Country
Rain Showers likely in the morning. A chance of Thunderstorms through the day. Rain Showers in the afternoon. Some Thunderstorms may produce heavy rainfall early in the morning. Some Thunderstorms may produce heavy rainfall in the late morning and afternoon. Highs around 66 on the north rim to around 90 along the colorado river. Light Winds becoming south around 15 Mph in the late morning and afternoon.
Tonight 16 Sep Grand Canyon Country
Mostly cloudy. Rain Showers likely and a chance of Thunderstorms in the evening. A chance of rain Showers and a slight chance of Thunderstorms after midnight. Some Thunderstorms may produce heavy rainfall. Lows around 57 on the north rim to around 72 along the colorado river. Light Winds. Chance of precipitation 70 percent.
Supai Temperature Statistics
September Temperature
Grand Canyon National Park Airport (35.4 miles)
Lowest 3 September, 2026
41.6 °FAverage September
64.5 °FHighest 9 September, 2026
87.7 °F
Climate (2021–2026)
Grand Canyon National Park Airport (35.4 miles)
Average Low 2021–2026
31.8 °FAverage 2021–2026
49.4 °FAverage High 2021–2026
65.8 °F