Long Slough Weather Forecast
- 69
- 78
Increasing Clouds
- 66
- 84
Chance Thunderstorms
- 64
- 78
Chance Thunderstorms
- 70
- 81
Chance Thunderstorms
- 73
- 87
Slight Chance Thunderstorms
- 73
- 90
Chance Rain Showers
Today 18 Jul Grant
Partly cloudy. Highs in the upper 70s. Southeast Winds 5 to 10 Mph.
Tonight 18 Jul Grant
Partly cloudy in the Evening, then mostly cloudy with Showers likely with a chance of Thunderstorms after midnight. Warmer with Lows in the upper 60s. South Winds around 5 Mph. Chance of rain 70 percent.
Long Slough Temperature Statistics
July Temperature
Dubuque Regional Airport (23 miles)
Lowest 13 July, 2025
59.6 °FAverage July
74.9 °FHighest 4 July, 2025
91.7 °F
Climate (2020–Present)
Dubuque Regional Airport (23 miles)
Average Low 2020–2025
40.2 °FAverage 2020–2025
49.6 °FAverage High 2020–2025
58.9 °F