Forest Park Weather in December

With daytime temperatures of 14°C (57°F) and nighttime lows of 4°C (39°F), December in Forest Park brings moderate temperatures during the day. It is also the wettest month of the year, so pack an umbrella.

Rainfall in Forest Park in December

In this month, the heaviest downpours of the year are not uncommon. Carrying a poncho might be your best bet to stay dry. Historically, December sees about 11 days of rain, with a monthly average of 152 mm (6 in). When it rains this month, it tends to come down fairly heavily. Showers can be substantial even if they don't last all day.

Temperature in Forest Park in December

December in Forest Park sees highs of 14°C (57°F) and lows of 4°C (39°F) overnight. December marks the winter season. Even when the weather is stable, mornings and evenings can still feel distinctly cool. At 4°C (39°F) overnight, it gets properly cold after dark. On the bright side, cold nights tend to make for excellent sleeping conditions.

Sunshine in Forest Park in December

The area enjoys a balanced 164 hours of sunlight, ensuring it's neither too overcast nor too sunny.

For Forest Park itself, May, September and October generally stand out with the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.