Macy Weather Forecast
- 57
- 74
Chance Thunderstorms
- 56
- 72
Chance Thunderstorms
- 59
- 74
Chance Rain Showers
- 59
- 79
Slight Chance Thunderstorms
- 54
- 80
Slight Chance Thunderstorms
- 53
- 76
Mostly Sunny
Today 18 Sep Thurston
Patchy fog early. Partly sunny early this Morning, then mostly cloudy with a chance of Showers with a slight chance of Thunderstorms this afternoon. Highs in the mid 70s. Southwest Winds 5 to 10 Mph. Chance of rain 40 percent.
Tonight 18 Sep Thurston
Mostly cloudy with a slight chance of Thunderstorms. A chance of Showers, mainly in the evening. Lows in the mid 50s. Southwest Winds 5 to 10 Mph, becoming west after midnight. Chance of rain 40 percent.
Macy Temperature Statistics
September Temperature
Sioux City, Sioux Gateway Airport (19.9 miles)
Lowest 7 September, 2025
37.9 °FAverage September
65.1 °FHighest 13 September, 2025
91.9 °F
Climate (2020–Present)
Sioux City, Sioux Gateway Airport (19.9 miles)
Average Low 2020–2025
38.8 °FAverage 2020–2025
50.7 °FAverage High 2020–2025
62.6 °F