Sinsinawa Weather Forecast
- 75
- 93
Decreasing Clouds
- 75
- 92
Mostly Sunny
- 72
- 90
Rain Showers Likely
- 70
- 89
Rain Showers Likely
- 69
- 88
Chance Thunderstorms
- 66
- 86
Chance Thunderstorms
Today 30 Jun Grant
Mostly sunny. Hot with Highs in the lower 90s. Southwest Winds 10 to 15 Mph. Heat index Values up to 105.
Tonight 30 Jun Grant
Partly cloudy in the Evening, then becoming mostly cloudy. A slight chance of Thunderstorms. A slight chance of Showers in the Evening, then a chance of Showers after midnight. Humid with Lows in the mid 70s. Southwest Winds 10 to 15 Mph. Chance of rain 50 percent. Heat index Values up to 105 early in the evening.
Sinsinawa Temperature Statistics
June Temperature
Dubuque Regional Airport (11.8 miles)
Lowest 15 June, 2026
48.9 °FAverage June
68.4 °FHighest 6 June, 2026
87.1 °F
Climate (2021–2026)
Dubuque Regional Airport (11.8 miles)
Average Low 2021–2026
40.6 °FAverage 2021–2026
50 °FAverage High 2021–2026
59.4 °F