Oak Forest weather
At 5:30 PM local time it was cloudy and 15°C (60°F). Light rain for 1 of the next 24 hours (under 1 mm/h, 0.2 mm total) — cloudy, but fine to be out. Best months for weather: May–Sep. Oak Forest sits 205 m (673 ft) above sea level, which keeps it cooler than the coast. Below: today's sky, the hour-by-hour rain chance and the 16-day forecast for Oak Forest, Illinois, United States.
Current conditions
- Clouds
- 100%
- Chance of rain
- 3%
- Rain
- 0.0 mm/h
Hourly Forecast
Light rain for 1 of the next 24 hours (under 1 mm/h, 0.2 mm total) — cloudy, but fine to be out
Daily Forecast
Best Time to Visit
Peak season May–SepOff season Nov–Mar
About Oak Forest weather
Is it raining in Oak Forest right now?
No. It’s cloudy and 15° right now. Light rain for 1 of the next 24 hours (under 1 mm/h, 0.2 mm total) — cloudy, but fine to be out.
What’s the weather like in Oak Forest this week?
Over the next 7 days, expect highs of 13–20° and lows of 11–16°. Rain is likely on 3 of 7 days (Tuesday, Wednesday, Friday). The driest day looks like Sunday.
Has it been raining in Oak Forest lately?
Barely. The past 7 days were mostly dry, with 0.1 mm of rain in total.
What should I pack for Oak Forest?
For the coming week, bring an umbrella or rain jacket and a warm layer for the evenings.
Oak Forest weather by month
When is the best time to visit Oak Forest?
Based on weather alone, the best time to visit Oak Forest is May–Sep, according to NASA's 2001–2025 climate averages. Nov–Mar tends to be the least pleasant. Average highs run from 0°C (31°F) in January to 28°C (83°F) in July.
What is the rainiest month in Oak Forest?
May is the wettest month, with about 112 mm (4.4 in) of rain on average. January is the driest, with about 51 mm (2.0 in).
What is the hottest month in Oak Forest?
July is the warmest, with average highs of 28°C (83°F) and lows of 19°C (65°F). January is the coolest, with highs of 0°C (31°F) and lows of -8°C (18°F).
Does Oak Forest have a rainy season?
Not a strong one. No month averages more than 150 mm of rain; the wettest is May at about 112 mm (4.4 in).
Sources: 2001–2025 monthly averages from NASA POWER (MERRA-2 reanalysis), forecast and current conditions from Open-Meteo. Page updated . How we rate months