nomadseason

June Weather in Waterloo, United States

Last updated: June 24, 2025

In Waterloo, United States, the average temperature in June reaches a pleasant 24°C (75°F). However, be prepared for a range: temperatures can dip to a crisp 10°C (51°F) or soar up to a scorching 42°C (107°F). With a minimal precipitation of just 2 mm (0.1 in) over 0 days, you can expect plenty of dry weather. Don't forget to stay hydrated, as the average humidity hovers around 64%!

June Temperature in Waterloo

In June in Waterloo, the average temperature is 24°C (75°F). Maximums can reach up to 42°C (107°F), and minimums can drop as low as 10°C (51°F). Travelers should be prepared for a wide range of temperatures during this time.

June Weather in Waterloo: Daily Temperature Highs, Lows, and Averages

The chart illustrates June temperature patterns in Waterloo, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Waterloo, June typically has an average temperature of 24°C (75°F), with highs reaching up to 42°C (107°F) and lows dropping to around 10°C (51°F).
JanFebMarAprMayJunJulAugSepOctNovDec505256626874767572655549
Data source: Temperature data for Waterloo generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

June Precipitation in Waterloo

In Waterloo in June, the precipitation amount is 2 mm (0.1 in) during a span of 0 days.

June Precipitation Trends in Waterloo

The chart displays monthly precipitation patterns in Waterloo, with values for each month alongside June’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how June’s conditions compare to those of other months. In Waterloo, June typically receives around 2 mm (0.1 inches) of precipitation spread over approximately 0 days.
JanFebMarAprMayJunJulAugSepOctNovDec110958944202002314795
Data source: Precipitation data for June generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

June Humidity in Waterloo

In Waterloo in June humidity is 64%. With average temperature 24°C (75°F), this humidity feels like a warm blanket enveloping you, making outdoor exploration both refreshing and a little sticky, perfect for leisurely strolls and shaded cafes but with a need for frequent water breaks.

June Average Humidity in Waterloo

This chart illustrates the average monthly humidity levels in Waterloo, with June’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In June, average humidity in Waterloo is approximately 64%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec82%84%82%78%71%64%59%54%55%62%78%80%
Data source: Humidity data for June generated using information from the Copernicus Climate Change Service.

June UV Index in Waterloo

In Waterloo in June, the maximum UV index reaches 11, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's essential to take precautions. For more details, you can check the Hourly UV Index in Waterloo.

Maximum UV Index Levels in Waterloo for June

The chart shows the monthly maximum UV Index (UVI) for Waterloo in June, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In June, the maximum UV index in Waterloo typically reaches 11, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3588101111109643
Data source: Waterloo June UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

How June Weather in Waterloo Compares to Other Months

Weather in Waterloo varies notably across the year, with each month offering distinct climate conditions. This page compares June’s weather to other months in Waterloo, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Waterloo, showing how June’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather10°C (50°F)110 mm (4.3 inches)82%moderate
February Weather11°C (52°F)95 mm (3.7 inches)84%moderate
March Weather13°C (56°F)89 mm (3.5 inches)82%very high
April Weather17°C (62°F)44 mm (1.7 inches)78%very high
May Weather20°C (68°F)20 mm (0.8 inches)71%very high
June Weather24°C (75°F)2 mm (0.1 inches)64%extreme
July Weather24°C (76°F)0 mm (0.0 inches)58%extreme
August Weather24°C (76°F)0 mm (0.0 inches)54%very high
September Weather22°C (72°F)2 mm (0.1 inches)55%very high
October Weather18°C (65°F)30 mm (1.2 inches)62%high
November Weather13°C (55°F)47 mm (1.8 inches)78%moderate
December Weather9°C (49°F)95 mm (3.7 inches)80%moderate

Compare Waterloo's Climate with Cities Worldwide