South Haven Weather Forecast
- 31
- 48
Chance Rain
- 29
- 38
Partly Sunny
- 40
- 55
Mostly Cloudy
- 47
- 58
Slight Chance Rain Showers
- 33
- 66
Chance Rain Showers
- 27
- 40
Partly Sunny
Today 22 Mar Porter
Mostly cloudy. Patchy fog early in the morning. A slight chance of rain Showers late in the morning. A chance of rain Showers in the afternoon. Breezy. Highs in the lower 50s Inland, but only in the mid 40s near the lake. Temperature falling into the upper 30s in the afternoon. North Winds 15 to 20 Mph, becoming 15 to 25 Mph in the afternoon. Gusts up to 35 Mph. Chance of precipitation 50 percent.
Tonight 22 Mar Porter
Mostly cloudy. A slight chance of rain Showers early in the evening. Blustery with Lows around 30. North Winds 15 to 20 Mph with Gusts up to 35 Mph. Chance of precipitation 20 percent.
South Haven Temperature Statistics
March Temperature
Valparaiso Porter County Municipal Airport (9.3 miles)
Lowest 17 March, 2026
16.6 °FAverage March
43.3 °FHighest 6 March, 2026
77.6 °F
Climate (2021–Present)
Valparaiso Porter County Municipal Airport (9.3 miles)
Average Low 2021–2026
42.5 °FAverage 2021–2026
52 °FAverage High 2021–2026
61.5 °F