Portage (IN) Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Portage.
Climate overview of Portage
The climate in Portage, Indiana, United States of America, is marked by large temperature swings across the seasons, ranging from 28°C (82°F) in July to 0°C (32°F) in January.
With around 1098 mm (43 in) of annual rain/snowfall, Portage has a notably wet climate. However, this rain/snowfall is not evenly distributed — the city has warm summers and very cold winters. The wettest month is August.
Portage Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Portage - and find the best time to visit.
Monthly Temperature in Portage
In Portage, temperatures differ significantly between summer and winter months. Average daytime temperatures reach a comfortable 28°C (82°F) in July. In January, the coolest month of the year, temperatures drop to a very cold 0°C (32°F).
At night, temperatures range from around 18°C (64°F) in July to -8°C (18°F) in January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Portage
Portage experiences significant rain/snowfall throughout the year, averaging 1098 mm (43 in) of precipitation annually. Portage can be quite wet during August, receiving approximately 135 mm (5.3 in) of precipitation over 11 rainy days.
In contrast, during the driest month (March), you will experience much drier conditions, with 60 mm (2.4 in) of precipitation spread across 11 rainy days. For more details, please visit our Portage Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Best Time to Visit Portage
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: May, June, July, August and September
- Warmest weather: July and August
- Seasonal pattern: Warm summers and very cold winters
- Coldest conditions: January, with freezing nights around -8°C (18°F).
Frequently asked questions about the climate in Portage
What is the best time to visit Portage?
May, June, July, August and September typically offer the most optimal weather in Portage. In contrast, January, February, March, November and December tend to have less optimal conditions. Portage has warm summers and very cold winters.
What temperatures can I expect in Portage?
Daytime highs range from 0°C (32°F) in January to 28°C (82°F) in July. Nighttime lows range from -8°C (18°F) to 18°C (64°F). Temperatures vary considerably through the year.
How much rain does Portage get?
Annual rainfall is around 1098 mm (43 in). August is the wettest month with 135 mm (5.3 in), while March is the driest with 60 mm (2.4 in).
Portage 3-Day Forecast
Portage (IN) 3-Day Forecast
Portage on the map
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