January Weather in Forest, United States

Last updated: June 24, 2025

In January, the average temperature in Forest, United States is a brisk 9°C (49°F). This time of year can bring a chill, with minimum temperatures plummeting to -13°C (9°F), while the mercury can rise as high as 27°C (82°F) on warmer days. Expect 108 mm (4.3 in) of precipitation spread over 8 days, coupled with an average humidity of 85%, creating a truly dynamic climate experience.

January Temperature in Forest

In January in Forest, the average temperature hovers around 9°C (49°F), with maximums reaching up to 27°C (82°F) and minimums dipping as low as -13°C (9°F). Travelers should be prepared for a wide range of temperatures, making it essential to pack layers for comfort during their visit.

January Weather in Forest: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in Forest, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Forest, January typically has an average temperature of 9°C (49°F), with highs reaching up to 27°C (82°F) and lows dropping to around -13°C (9°F).

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

January Precipitation in Forest

In Forest in January, the precipitation amount is 108 mm (4.3 in) spread over 8 days.

January Precipitation Trends in Forest

The chart displays monthly precipitation patterns in Forest, with values for each month alongside January’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how January’s conditions compare to those of other months. In Forest, January typically receives around 108 mm (4.3 inches) of precipitation spread over approximately 8 days.

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

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

January Humidity in Forest

In Forest in January humidity is 85%. With an average temperature of 9°C (49°F), this humidity feels like a damp chill that seeps into your bones, making every step outside a challenge as the moisture in the air weighs heavily and lingers, transforming even simple outings into a quest for comfort.

January Average Humidity in Forest

This chart illustrates the average monthly humidity levels in Forest, with January’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In January, average humidity in Forest is approximately 85%, offering insight into how humid the weather typically is during this month.

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

January UV Index in Forest

In Forest in January, 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 Forest for better planning.

Maximum UV Index Levels in Forest for January

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

Data source: Forest January 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 January Weather in Forest Compares to Other Months

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

This table compares monthly weather conditions in Forest, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	9°C (49°F)	108 mm (4.3 inches)	85%	moderate
February Weather	12°C (54°F)	152 mm (6.0 inches)	84%	high
March Weather	16°C (61°F)	130 mm (5.1 inches)	82%	very high
April Weather	18°C (65°F)	154 mm (6.0 inches)	82%	extreme
May Weather	23°C (74°F)	140 mm (5.5 inches)	82%	extreme
June Weather	26°C (79°F)	162 mm (6.4 inches)	79%	extreme
July Weather	27°C (81°F)	128 mm (5.0 inches)	82%	extreme
August Weather	27°C (81°F)	135 mm (5.3 inches)	77%	extreme
September Weather	25°C (78°F)	101 mm (4.0 inches)	74%	very high
October Weather	20°C (69°F)	98 mm (3.9 inches)	73%	very high
November Weather	13°C (55°F)	71 mm (2.8 inches)	85%	high
December Weather	11°C (52°F)	124 mm (4.9 inches)	88%	moderate