South Haven Weather Forecast
- 66
- 83
Thunderstorms Likely
- 66
- 77
Chance Rain Showers
- 66
- 76
Mostly Sunny
- 64
- 79
Mostly Sunny
- 67
- 87
Partly Sunny
- 66
- 87
Rain Showers Likely
- 64
- 81
Chance Thunderstorms
Today 4 Jul Porter
Partly cloudy late in the Morning, then becoming mostly cloudy. A slight chance of Showers and Thunderstorms late in the Morning, then Showers likely and a chance of Thunderstorms in the afternoon. Highs in the mid 80s Inland, but only in the upper 70s near the lake. Temperature falling into the mid 70s in the afternoon. Northwest Winds 5 to 10 Mph. Chance of precipitation 70 percent.
Tonight 4 Jul Porter
Showers early in the evening. A slight chance of Thunderstorms until early morning. A slight chance of Showers in the late evening and early morning. Lows in the mid 60s. North Winds around 5 Mph. Chance of precipitation near 100 percent.
South Haven Temperature Statistics
July Temperature
Valparaiso Porter County Municipal Airport (9.3 miles)
Lowest 2 July, 2026
75 °FAverage July
84.3 °FHighest 1 July, 2026
92.6 °F
Climate (2021–2026)
Valparaiso Porter County Municipal Airport (9.3 miles)
Average Low 2021–2026
42.6 °FAverage 2021–2026
52.1 °FAverage High 2021–2026
61.7 °F