October Weather in Grand Forks, United States

Last updated: June 24, 2025

In Grand Forks, United States, the average temperature in October hovers around 6°C (44°F), with a minimum of -10°C (14°F) and a maximum reaching 29°C (84°F). Expect about 80 mm (3.1 in) of precipitation spread over 9 days, and enjoy a high average humidity of 79%. Prepare accordingly for a mix of chilly and warm days!

October Temperature in Grand Forks

In October in Grand Forks, the average temperature is 6°C (44°F). Maximum temperatures can reach up to 29°C (84°F), while minimums can drop as low as -10°C (14°F). Be prepared for a wide range of weather conditions while exploring Grand Forks during this time.

October Weather in Grand Forks: Daily Temperature Highs, Lows, and Averages

The chart illustrates October temperature patterns in Grand Forks, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Grand Forks, October typically has an average temperature of 6°C (44°F), with highs reaching up to 29°C (84°F) and lows dropping to around -10°C (14°F).

Data source: Temperature data for Grand Forks generated using information from the Copernicus Climate Change Service.

October Precipitation in Grand Forks

In Grand Forks in October, the precipitation amount is 80 mm (3.1 in) spread over 9 days.

October Precipitation Trends in Grand Forks

The chart displays monthly precipitation patterns in Grand Forks, with values for each month alongside October’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how October’s conditions compare to those of other months. In Grand Forks, October typically receives around 80 mm (3.1 inches) of precipitation spread over approximately 9 days.

Data source: Precipitation data for October generated using information from the Copernicus Climate Change Service.

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

October Humidity in Grand Forks

In Grand Forks in October, humidity is 79%. With an average temperature of 6°C (44°F), this humidity feels like a cold, damp chill that seeps into your bones, making travel feel less comfortable and more challenging as the wet air clings to your clothes and skin.

October Average Humidity in Grand Forks

This chart illustrates the average monthly humidity levels in Grand Forks, with October’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In October, average humidity in Grand Forks is approximately 79%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for October generated using information from the Copernicus Climate Change Service.

October UV Index in Grand Forks

In Grand Forks in October, the maximum UV index reaches 4, which corresponds to a moderate Exposure Category. With a time to burn of 30 minutes, it’s important to take precautions to protect your skin. You can find more details in the Hourly UV Index in Grand Forks for better planning.

Maximum UV Index Levels in Grand Forks for October

The chart shows the monthly maximum UV Index (UVI) for Grand Forks in October, 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 October, the maximum UV index in Grand Forks typically reaches 4, which falls under the moderate exposure category.

Data source: Grand Forks October 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 October Weather in Grand Forks Compares to Other Months

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

This table compares monthly weather conditions in Grand Forks, showing how October’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-13°C (9°F)	18 mm (0.7 inches)	90%	low
February Weather	-14°C (8°F)	20 mm (0.8 inches)	92%	moderate
March Weather	-3°C (26°F)	24 mm (1.0 inches)	85%	moderate
April Weather	4°C (39°F)	35 mm (1.4 inches)	81%	high
May Weather	13°C (56°F)	55 mm (2.2 inches)	75%	very high
June Weather	20°C (69°F)	83 mm (3.3 inches)	79%	very high
July Weather	22°C (72°F)	59 mm (2.3 inches)	76%	very high
August Weather	20°C (68°F)	76 mm (3.0 inches)	78%	very high
September Weather	15°C (60°F)	73 mm (2.9 inches)	77%	high
October Weather	6°C (44°F)	80 mm (3.1 inches)	79%	moderate
November Weather	-3°C (27°F)	26 mm (1.0 inches)	86%	low
December Weather	-9°C (17°F)	36 mm (1.4 inches)	86%	low