Porter County weather, town by town
19 places in Porter County, Indiana, each with its own live forecast and radar, and where a station sits close enough, measured weather records.
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Measured at the NOAA stations serving these towns, daily records 1963 to 2026. Station extremes, not official state records.
Porter County Weather Facts
Porter County has 19 places on myweatherrock (9 towns, 8 census-designated places, 2 cities), each with its own live forecast, hourly timeline, ten day outlook and radar. The hottest day in the station records is 104°F at Lowell Wwtp on June 25, 1988. The coldest night is -29°F at Lowell Wwtp on December 22, 1989. The wettest day brought 7.76 inches of rain at Indiana Dunes Np on August 18, 1990. The biggest single-day snow measured 17.52 inches at Valparaiso 2.0 Wsw on February 16, 2021. Those are station measurements from NOAA's daily records, 1963 to 2026, not official state records. By area the largest place is Portage, about 26 square miles.
About Porter County weather
The map on the Now tab shows every Porter County town's current temperature from our own server, one dot per town. Tap any dot, or type a town above, for that town's full forecast.
What the weather is usually like
Across the 19 Porter County towns with station normals, the warmest month is July, when the day usually reaches 83°F, and the coldest is January, when the night usually falls to 18°F. May is the wettest, with rain on about 12 days. January nights run from about 15°F in Hebron to 18°F in Aberdeen.
Means of the 1991 to 2020 station normals serving these towns, as published by NOAA; each town's page carries its own.
Where these numbers come from
- Current conditions and forecast: NOAA forecast grids decoded on our own server, corrected against the nearest reporting station and our own radar. Open-Meteo is consulted only as a fallback when our server is silent.
- Records: computed by myweatherrock from NOAA GHCN-Daily station records at the stations serving these towns. Measurements, not estimates.
- Warnings and alerts: the National Weather Service, passed through unchanged.
Porter County weather records
Measured at the NOAA stations serving these towns, daily records 1963 to 2026. Station extremes, not official state records.
Common questions about Porter County weather
- What is the hottest temperature recorded at a Porter County station?
- 104°F at Lowell Wwtp on June 25, 1988, in the NOAA daily station records myweatherrock holds (1963 to 2026).
- What is the coldest temperature recorded at a Porter County station?
- -29°F at Lowell Wwtp on December 22, 1989.
- What is the most rain a Porter County station has measured in one day?
- 7.76 inches at Indiana Dunes Np on August 18, 1990.
- What is the biggest one-day snowfall at a Porter County station?
- 17.52 inches at Valparaiso 2.0 Wsw on February 16, 2021.
- How many Porter County towns have a weather page here?
- 19: 9 towns, 8 census-designated places, 2 cities. Each page carries current conditions, the hourly timeline, the ten day outlook, radar, and where a station sits close enough, measured records.
- Where does the Porter County forecast come from?
- NOAA forecast grids (the National Weather Service digital forecast, the National Blend of Models, HRRR and GFS) decoded on our own server, corrected against the nearest reporting station and our own radar. Open-Meteo is consulted only as a fallback when our server is silent.
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