South Haven Weather Forecast
- 66
- 83
Thunderstorms Likely
- 66
- 77
Chance Thunderstorms
- 66
- 76
Slight Chance Rain Showers
- 64
- 79
Partly Sunny
- 67
- 87
Chance Thunderstorms
- 66
- 87
Chance Thunderstorms
- 64
- 81
Chance Rain Showers
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
Mostly cloudy. Numerous Showers and Thunderstorms early in the Evening, then isolated Showers and Thunderstorms in the late evening and early morning. Lows in the upper 60s. North Winds around 5 Mph. Chance of precipitation 70 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