Current Conditions

Park Forest, Illinois

70°F21°C

Rain

Wind

SE 3 mph5 km/h

Humidity

96%

Cloud Cover

60%

As of Thursday, August 13, 2026 at 3:21 AM CDT

Today's Outlook

Day

Overcast and warm, with a high of 78°F26°C and morning low of 70°F21°C. Light wind from the ESE around 5 mph8 km/h. 77% chance of light rain in the afternoon. Heavy, humid air.

Night

Mostly cloudy, with a low around 70°F21°C. Light wind from the ESE around 4 mph6 km/h. 91% chance of rain in the evening.

7-Day Forecast

Condition	High (°F)	Low (°F)	Precip (mm)	Cloud Cover (%)	Wind (mph)
Rain	High 78°F26°C	Low 70°F21°C	Precip 0.33 in8.5 mm91%	Cloud 86%	Wind ESE 4 mph7 km/h	Thursday: Overcast and warm, with a high of 78°F26°C and morning low of 70°F21°C. Light wind from the ESE around 5 mph8 km/h. 77% chance of light rain in the afternoon. Heavy, humid air. Thursday Night: Mostly cloudy, with a low around 70°F21°C. Light wind from the ESE around 4 mph6 km/h. 91% chance of rain in the evening.
Rain	High 79°F26°C	Low 71°F22°C	Precip 0.51 in12.9 mm78%	Cloud 96%	Wind E 5 mph8 km/h	Friday: Overcast and warm, with a high of 79°F26°C and morning low of 71°F22°C. Light wind from the ESE around 5 mph8 km/h. 78% chance of rain throughout the day. Heavy, humid air. Friday Night: Overcast, with a low around 72°F22°C. Light wind from the ENE around 5 mph8 km/h. 72% chance of rain throughout the night.
Rain	High 80°F27°C	Low 72°F22°C	Precip 0.68 in17.2 mm84%	Cloud 91%	Wind SSE 6 mph9 km/h	Saturday: Overcast and warm, with a high of 80°F27°C and morning low of 72°F22°C. Breezy from the S at 7 mph11 km/h. 84% chance of rain throughout the day. Heavy, humid air. Saturday Night: Overcast, with a low around 72°F22°C. Light wind from the SE around 5 mph8 km/h. 54% chance of light rain throughout the night.
Light Rain	High 84°F29°CFeels 91°F33°C	Low 75°F24°C	Precip 0.26 in6.5 mm62%	Cloud 81%	Wind W 7 mph11 km/h	Sunday: Overcast and warm, with a high of 84°F29°C and morning low of 75°F24°C — feels like 91°F33°C. Breezy from the WNW at 7 to 8 mph12 to 13 km/h. 45% chance of light rain throughout the day. Heavy, humid air. Sunday Night: Mostly cloudy, with a low around 75°F24°C. Light wind from the W around 6 mph9 km/h. 62% chance of light rain throughout the night.
Drizzle	High 77°F25°C	Low 68°F20°C	Precip 0.04 in1 mm20%	Cloud 57%	Wind NNE 6 mph10 km/h	Monday: Mostly cloudy and warm, with a high of 77°F25°C and morning low of 70°F21°C. Breezy from the NNE at 8 mph12 km/h. 20% chance of drizzle throughout the day. Humid. Monday Night: Mostly cloudy, with a low around 68°F20°C. Light wind from the NNE around 5 mph9 km/h. 15% chance of drizzle overnight.
Partly Cloudy	High 82°F28°C	Low 63°F17°C	Precip 0 in0.1 mm2%	Cloud 50%	Wind SSW 5 mph8 km/h	Tuesday: Mostly cloudy and warm, with a high of 82°F28°C and morning low of 64°F18°C. Light wind from the SW around 5 mph8 km/h. Tuesday Night: Partly cloudy, with a low around 63°F17°C. Breezy from the SSW at 5 to 7 mph8 to 12 km/h.
Light Rain	High 83°F28°CFeels 87°F30°C	Low 70°F21°C	Precip 0.2 in5.2 mm34%	Cloud 74%	Wind SSW 8 mph13 km/h	Wednesday: Mostly cloudy and warm, with a high of 83°F28°C and morning low of 70°F21°C. Breezy from the SW at 9 to 10 mph14 to 16 km/h. 34% chance of light rain throughout the day. Humid. Wednesday Night: Mostly cloudy, with a low around 71°F21°C. Breezy from the SSW at 8 to 9 mph12 to 14 km/h. 29% chance of showers throughout the night.

15-Day Forecast

	Day	High	Low	Precip	Cloud Cover	Condition	Wind
	ThursdayAug 13	78°F26°C	70°F21°C	0.33 in8.5 mm· 91%	86%	Rain	ESE 4 mph7 km/h
DayOvercast and warm, with a high of 78°F26°C and morning low of 70°F21°C. Light wind from the ESE around 5 mph8 km/h. 77% chance of light rain in the afternoon. Heavy, humid air. NightMostly cloudy, with a low around 70°F21°C. Light wind from the ESE around 4 mph6 km/h. 91% chance of rain in the evening.
	FridayAug 14	79°F26°C	71°F22°C	0.51 in12.9 mm· 78%	96%	Rain	E 5 mph8 km/h
DayOvercast and warm, with a high of 79°F26°C and morning low of 71°F22°C. Light wind from the ESE around 5 mph8 km/h. 78% chance of rain throughout the day. Heavy, humid air. NightOvercast, with a low around 72°F22°C. Light wind from the ENE around 5 mph8 km/h. 72% chance of rain throughout the night.
	SaturdayAug 15	80°F27°C	72°F22°C	0.68 in17.2 mm· 84%	91%	Rain	SSE 6 mph9 km/h
DayOvercast and warm, with a high of 80°F27°C and morning low of 72°F22°C. Breezy from the S at 7 mph11 km/h. 84% chance of rain throughout the day. Heavy, humid air. NightOvercast, with a low around 72°F22°C. Light wind from the SE around 5 mph8 km/h. 54% chance of light rain throughout the night.
	SundayAug 16	84°F29°C Feels 91°F33°C	75°F24°C	0.26 in6.5 mm· 62%	81%	Light Rain	W 7 mph11 km/h
DayOvercast and warm, with a high of 84°F29°C and morning low of 75°F24°C — feels like 91°F33°C. Breezy from the WNW at 7 to 8 mph12 to 13 km/h. 45% chance of light rain throughout the day. Heavy, humid air. NightMostly cloudy, with a low around 75°F24°C. Light wind from the W around 6 mph9 km/h. 62% chance of light rain throughout the night.
	MondayAug 17	77°F25°C	68°F20°C	0.04 in1 mm· 20%	57%	Drizzle	NNE 6 mph10 km/h
DayMostly cloudy and warm, with a high of 77°F25°C and morning low of 70°F21°C. Breezy from the NNE at 8 mph12 km/h. 20% chance of drizzle throughout the day. Humid. NightMostly cloudy, with a low around 68°F20°C. Light wind from the NNE around 5 mph9 km/h. 15% chance of drizzle overnight.
	TuesdayAug 18	82°F28°C	63°F17°C	0 in0.1 mm· 2%	50%	Partly Cloudy	SSW 5 mph8 km/h
DayMostly cloudy and warm, with a high of 82°F28°C and morning low of 64°F18°C. Light wind from the SW around 5 mph8 km/h. NightPartly cloudy, with a low around 63°F17°C. Breezy from the SSW at 5 to 7 mph8 to 12 km/h.
	WednesdayAug 19	83°F28°C Feels 87°F30°C	70°F21°C	0.2 in5.2 mm· 34%	74%	Light Rain	SSW 8 mph13 km/h
DayMostly cloudy and warm, with a high of 83°F28°C and morning low of 70°F21°C. Breezy from the SW at 9 to 10 mph14 to 16 km/h. 34% chance of light rain throughout the day. Humid. NightMostly cloudy, with a low around 71°F21°C. Breezy from the SSW at 8 to 9 mph12 to 14 km/h. 29% chance of showers throughout the night.
	ThursdayAug 20	77°F25°C	68°F20°C	0.11 in2.7 mm· 19%	52%	Showers	N 7 mph12 km/h
DayMostly cloudy and warm, with a high of 77°F25°C and morning low of 68°F20°C. Breezy from the NNW at 8 mph12 km/h. 16% chance of drizzle throughout the day. NightPartly cloudy, with a low around 68°F20°C. Breezy from the N at 7 mph11 km/h. 19% chance of showers throughout the night.
	FridayAug 21	77°F25°C	64°F18°C	0.11 in2.8 mm· 18%	46%	Showers	NE 6 mph10 km/h
DayMostly cloudy and warm, with a high of 77°F25°C and morning low of 64°F18°C. Breezy from the NE at 7 mph11 km/h. 18% chance of drizzle throughout the day. NightPartly cloudy, with a low around 64°F18°C. Light wind from the ENE around 6 mph9 km/h. 16% chance of showers throughout the night.
	SaturdayAug 22	79°F26°C	64°F18°C	0.05 in1.3 mm· 12%	39%	Drizzle	ENE 6 mph9 km/h
DayPartly cloudy and warm, with a high of 79°F26°C and morning low of 64°F18°C. Breezy from the NNW at 6 to 7 mph10 to 11 km/h. 12% chance of drizzle throughout the day. NightPartly cloudy, with a low around 64°F18°C. Light wind from the ESE around 5 mph9 km/h.
	SundayAug 23	81°F27°C	64°F18°C	0.05 in1.2 mm· 7%	34%	Clear	S 6 mph10 km/h
DayPartly cloudy and warm, with a high of 81°F27°C and morning low of 64°F18°C. Breezy from the SW at 6 to 7 mph10 to 12 km/h. NightPartly cloudy, with a low around 64°F18°C. Light wind from the SSE around 5 mph9 km/h.
	MondayAug 24	82°F28°C	66°F19°C	0.05 in1.2 mm· 11%	39%	Drizzle	S 6 mph10 km/h
DayPartly cloudy and warm, with a high of 82°F28°C and morning low of 66°F19°C. Breezy from the SW at 7 mph11 km/h. 11% chance of drizzle throughout the day. NightPartly cloudy, with a low around 66°F19°C. Light wind from the SSE around 6 mph9 km/h.
	TuesdayAug 25	83°F28°C	66°F19°C	0.04 in1.1 mm· 9%	38%	Clear	S 6 mph10 km/h
DayPartly cloudy and warm, with a high of 83°F28°C and morning low of 66°F19°C. Breezy from the SW at 7 to 8 mph11 to 12 km/h. NightPartly cloudy, with a low around 66°F19°C. Light wind from the SSE around 6 mph10 km/h.
	WednesdayAug 26	82°F28°C	67°F19°C	0.06 in1.4 mm· 13%	41%	Drizzle	WNW 7 mph11 km/h
DayPartly cloudy and warm, with a high of 82°F28°C and morning low of 67°F19°C. Breezy from the W at 7 to 8 mph11 to 12 km/h. 13% chance of drizzle throughout the day. NightPartly cloudy, with a low around 67°F20°C. Light wind from the E around 6 mph10 km/h.
	ThursdayAug 27	81°F27°C	66°F19°C	0.04 in1 mm· 11%	43%	Drizzle	NNE 7 mph11 km/h
DayPartly cloudy and warm, with a high of 81°F27°C and morning low of 66°F19°C. Breezy from the N at 7 to 8 mph11 to 13 km/h. 11% chance of drizzle throughout the day. NightPartly cloudy, with a low around 67°F19°C. Light wind from the NE around 6 mph10 km/h.

Nearby Cities

Matteson2 mi4 km Chicago Heights2 mi4 km Homewood5 mi7 km Country Club Hills6 mi9 km Dyer8 mi13 km Tinley Park8 mi13 km

About This Forecast

This forecast is powered by WeatherMesh, the world's most advanced and accurate weather model powered by AI. WeatherMesh is built on proprietary data from WindBorne's Global Sounding Balloon constellation — the world's largest fleet of autonomous, long-duration weather balloons — collecting observations across 100% of Earth, including over oceans and remote regions where no other data exists.

WeatherMesh consistently outperforms legacy models in independent benchmarks. View Benchmarks →

Access WeatherMesh forecasts programmatically via our API. API Documentation →

How to Access Weather Forecasts

Pattern	Example	Description
/weather/{country}/{city}/	/weather/united-states/san-francisco/	City forecast (canonical URL)
/weather/{city}/	/weather/tokyo/	Shorthand — redirects to most populous match
/weather/{country}/{region}/{city}/	/weather/united-states/california/san-francisco/	With region — redirects to canonical
/weather/nearby?lat={lat}&lon={lon}	/weather/nearby?lat=48.1&lon=11.5	Find nearest city by coordinates
/weather/{country}/	/weather/germany/	Country index — all cities by region

Country and city names use lowercase slugs with hyphens (e.g. united-states, san-francisco). Arbitrary city names are supported — if not in our database, we geocode the name and serve the forecast for that location.

For programmatic access, use theWindBorne Forecast APIwhich returns structured JSON for any coordinates worldwide.

Coordinates: 41.4914°N, 87.6745°W·Elevation: 217m·Timezone: America/Chicago·Population: 21,954