Current Conditions

Romeoville, Illinois

76°F24°C

Drizzle

Wind

SW 7 mph12 km/h

Humidity

82%

Cloud Cover

47%

As of Wednesday, September 2, 2026 at 7:59 AM CDT

Today's Outlook

Day

Partly cloudy and hot, with a high of 96°F35°C and morning low of 76°F24°C — feels like 102°F39°C. Breezy from the SW at 9 to 10 mph14 to 17 km/h. 11% chance of drizzle. Heat risk in the afternoon.

Night

Mostly clear, with a low around 82°F28°C. Light wind from the SSW around 6 mph10 km/h.

7-Day Forecast

Condition	High (°F)	Low (°F)	Precip (mm)	Cloud Cover (%)	Wind (mph)
Drizzle	High 96°F35°CFeels 103°F39°C	Low 76°F24°C	Precip 0.01 in0.2 mm11%	Cloud 31%	Wind SW 8 mph13 km/h	Wednesday: Partly cloudy and hot, with a high of 96°F35°C and morning low of 76°F24°C — feels like 102°F39°C. Breezy from the SW at 9 to 10 mph14 to 17 km/h. 11% chance of drizzle. Heat risk in the afternoon. Wednesday Night: Mostly clear, with a low around 82°F28°C. Light wind from the SSW around 6 mph10 km/h.
Drizzle	High 91°F33°CFeels 98°F37°C	Low 76°F25°C	Precip 0.02 in0.5 mm23%	Cloud 28%	Wind SSW 6 mph9 km/h	Thursday: Partly cloudy and hot, with a high of 91°F33°C and morning low of 76°F25°C — feels like 99°F37°C. Light wind from the SW around 6 mph9 km/h. 23% chance of drizzle in the afternoon. Heat risk in the afternoon. Thursday Night: Mostly clear, with a low around 78°F26°C. Breezy from the SSW at 6 to 7 mph9 to 12 km/h.
Drizzle	High 91°F33°CFeels 99°F37°C	Low 74°F24°C	Precip 0.03 in0.8 mm14%	Cloud 42%	Wind SE 6 mph9 km/h	Friday: Mostly cloudy and hot, with a high of 91°F33°C and morning low of 74°F24°C — feels like 99°F37°C. Light wind from the SE around 6 mph9 km/h. 14% chance of drizzle in the afternoon. Heat risk in the afternoon. Friday Night: Partly cloudy, with a low around 75°F24°C. Light wind from the ESE around 5 mph9 km/h. 12% chance of drizzle in the evening.
Showers	High 85°F29°CFeels 91°F33°C	Low 74°F23°C	Precip 0.15 in3.9 mm32%	Cloud 56%	Wind ENE 6 mph9 km/h	Saturday: Mostly cloudy and warm, with a high of 85°F29°C and morning low of 74°F23°C — feels like 91°F33°C. Breezy from the ENE at 6 to 7 mph9 to 12 km/h. 32% chance of showers throughout the day. Heavy, humid air. Saturday Night: Partly cloudy, with a low around 74°F23°C. Breezy from the ENE at 6 to 7 mph10 to 12 km/h. 28% chance of showers throughout the night.
Partly Cloudy	High 82°F28°C	Low 69°F20°C	Precip 0.04 in1.1 mm9%	Cloud 55%	Wind E 6 mph9 km/h	Sunday: Mostly cloudy and warm, with a high of 82°F28°C and morning low of 69°F20°C. Breezy from the E at 6 to 7 mph10 to 11 km/h. Humid. Sunday Night: Mostly cloudy, with a low around 70°F21°C. Light wind from the E around 6 mph9 km/h.
Partly Cloudy	High 83°F28°C	Low 65°F19°C	Precip 0.02 in0.5 mm6%	Cloud 61%	Wind ESE 6 mph9 km/h	Monday: Mostly cloudy and warm, with a high of 83°F28°C and morning low of 65°F19°C. Light wind from the ESE around 6 mph9 km/h. Monday Night: Mostly cloudy, with a low around 67°F19°C. Light wind from the ESE around 5 mph9 km/h.
Drizzle	High 88°F31°CFeels 91°F33°C	Low 67°F20°C	Precip 0.04 in1.1 mm13%	Cloud 63%	Wind SSE 8 mph12 km/h	Tuesday: Mostly cloudy and hot, with a high of 88°F31°C and morning low of 67°F20°C. Breezy from the S at 8 to 9 mph13 to 15 km/h. 13% chance of drizzle throughout the day. Tuesday Night: Mostly cloudy, with a low around 68°F20°C. Breezy from the SSE at 7 to 9 mph12 to 14 km/h.

15-Day Forecast

	Day	High	Low	Precip	Cloud Cover	Condition	Wind
	WednesdaySep 2	96°F35°C Feels 103°F39°C	76°F24°C	0.01 in0.2 mm· 11%	31%	Drizzle	SW 8 mph13 km/h
DayPartly cloudy and hot, with a high of 96°F35°C and morning low of 76°F24°C — feels like 102°F39°C. Breezy from the SW at 9 to 10 mph14 to 17 km/h. 11% chance of drizzle. Heat risk in the afternoon. NightMostly clear, with a low around 82°F28°C. Light wind from the SSW around 6 mph10 km/h.
	ThursdaySep 3	91°F33°C Feels 98°F37°C	76°F25°C	0.02 in0.5 mm· 23%	28%	Drizzle	SSW 6 mph9 km/h
DayPartly cloudy and hot, with a high of 91°F33°C and morning low of 76°F25°C — feels like 99°F37°C. Light wind from the SW around 6 mph9 km/h. 23% chance of drizzle in the afternoon. Heat risk in the afternoon. NightMostly clear, with a low around 78°F26°C. Breezy from the SSW at 6 to 7 mph9 to 12 km/h.
	FridaySep 4	91°F33°C Feels 99°F37°C	74°F24°C	0.03 in0.8 mm· 14%	42%	Drizzle	SE 6 mph9 km/h
DayMostly cloudy and hot, with a high of 91°F33°C and morning low of 74°F24°C — feels like 99°F37°C. Light wind from the SE around 6 mph9 km/h. 14% chance of drizzle in the afternoon. Heat risk in the afternoon. NightPartly cloudy, with a low around 75°F24°C. Light wind from the ESE around 5 mph9 km/h. 12% chance of drizzle in the evening.
	SaturdaySep 5	85°F29°C Feels 91°F33°C	74°F23°C	0.15 in3.9 mm· 32%	56%	Showers	ENE 6 mph9 km/h
DayMostly cloudy and warm, with a high of 85°F29°C and morning low of 74°F23°C — feels like 91°F33°C. Breezy from the ENE at 6 to 7 mph9 to 12 km/h. 32% chance of showers throughout the day. Heavy, humid air. NightPartly cloudy, with a low around 74°F23°C. Breezy from the ENE at 6 to 7 mph10 to 12 km/h. 28% chance of showers throughout the night.
	SundaySep 6	82°F28°C	69°F20°C	0.04 in1.1 mm· 9%	55%	Partly Cloudy	E 6 mph9 km/h
DayMostly cloudy and warm, with a high of 82°F28°C and morning low of 69°F20°C. Breezy from the E at 6 to 7 mph10 to 11 km/h. Humid. NightMostly cloudy, with a low around 70°F21°C. Light wind from the E around 6 mph9 km/h.
	MondaySep 7	83°F28°C	65°F19°C	0.02 in0.5 mm· 6%	61%	Partly Cloudy	ESE 6 mph9 km/h
DayMostly cloudy and warm, with a high of 83°F28°C and morning low of 65°F19°C. Light wind from the ESE around 6 mph9 km/h. NightMostly cloudy, with a low around 67°F19°C. Light wind from the ESE around 5 mph9 km/h.
	TuesdaySep 8	88°F31°C Feels 91°F33°C	67°F20°C	0.04 in1.1 mm· 13%	63%	Drizzle	SSE 8 mph12 km/h
DayMostly cloudy and hot, with a high of 88°F31°C and morning low of 67°F20°C. Breezy from the S at 8 to 9 mph13 to 15 km/h. 13% chance of drizzle throughout the day. NightMostly cloudy, with a low around 68°F20°C. Breezy from the SSE at 7 to 9 mph12 to 14 km/h.
	WednesdaySep 9	93°F34°C Feels 100°F38°C	76°F24°C	0.06 in1.4 mm· 12%	36%	Drizzle	SW 10 mph15 km/h
DayPartly cloudy and hot, with a high of 93°F34°C and morning low of 76°F24°C — feels like 100°F38°C. Breezy from the SW at 10 to 11 mph16 to 17 km/h. 12% chance of drizzle in the morning. Heat risk in the afternoon. NightPartly cloudy, with a low around 76°F25°C. Breezy from the SSW at 9 to 10 mph14 to 16 km/h.
	ThursdaySep 10	86°F30°C Feels 90°F32°C	74°F23°C	0.14 in3.5 mm· 22%	52%	Showers	SW 8 mph13 km/h
DayMostly cloudy and hot, with a high of 86°F30°C and morning low of 74°F23°C. Breezy from the WSW at 8 to 9 mph14 to 14 km/h. 22% chance of showers throughout the day. Humid. NightPartly cloudy, with a low around 75°F24°C. Breezy from the SW at 8 to 9 mph13 to 15 km/h. 17% chance of showers throughout the night.
	FridaySep 11	83°F29°C	70°F21°C	0.2 in5.2 mm· 24%	57%	Showers	SSW 8 mph13 km/h
DayMostly cloudy and warm, with a high of 83°F29°C and morning low of 70°F21°C. Breezy from the SW at 9 to 10 mph14 to 15 km/h. 24% chance of showers throughout the day. Humid. NightMostly cloudy, with a low around 71°F22°C. Breezy from the SSW at 7 to 8 mph12 to 12 km/h. 21% chance of showers throughout the night.
	SaturdaySep 12	81°F27°C	68°F20°C	0.19 in4.8 mm· 22%	59%	Showers	SW 8 mph13 km/h
DayMostly cloudy and warm, with a high of 81°F27°C and morning low of 68°F20°C. Breezy from the SW at 9 to 10 mph14 to 16 km/h. 22% chance of showers throughout the day. NightMostly cloudy, with a low around 69°F21°C. Breezy from the SSW at 8 mph12 km/h. 21% chance of showers throughout the night.
	SundaySep 13	78°F26°C	65°F18°C	0.19 in4.8 mm· 24%	59%	Showers	WSW 8 mph12 km/h
DayMostly cloudy and warm, with a high of 78°F26°C and morning low of 65°F18°C. Breezy from the WSW at 8 to 9 mph13 to 14 km/h. 24% chance of showers throughout the day. NightMostly cloudy, with a low around 67°F19°C. Breezy from the SW at 7 mph11 km/h. 22% chance of showers throughout the night.
	MondaySep 14	78°F26°C	63°F17°C	0.1 in2.6 mm· 15%	59%	Showers	SSW 7 mph12 km/h
DayMostly cloudy and warm, with a high of 78°F26°C and morning low of 63°F17°C. Breezy from the SW at 8 to 9 mph13 to 14 km/h. 14% chance of showers throughout the day. NightMostly cloudy, with a low around 64°F18°C. Breezy from the S at 7 mph11 km/h. 15% chance of showers throughout the night.
	TuesdaySep 15	78°F25°C	63°F17°C	0.15 in3.8 mm· 19%	54%	Showers	SSW 7 mph12 km/h
DayMostly cloudy and warm, with a high of 78°F25°C and morning low of 63°F17°C. Breezy from the SSW at 8 to 9 mph13 to 15 km/h. 19% chance of showers throughout the day. NightMostly cloudy, with a low around 64°F18°C. Breezy from the S at 7 mph11 km/h. 16% chance of showers throughout the night.
	WednesdaySep 16	77°F25°C	61°F16°C	0.08 in2.1 mm· 15%	46%	Drizzle	WSW 8 mph12 km/h
DayPartly cloudy and warm, with a high of 77°F25°C and morning low of 61°F16°C. Breezy from the WSW at 8 to 9 mph13 to 15 km/h. 14% chance of drizzle throughout the day. NightPartly cloudy, with a low around 63°F17°C. Breezy from the SSW at 7 mph11 km/h. 15% chance of drizzle throughout the night.

Nearby Cities

Bolingbrook4 mi6 km Lockport4 mi7 km Lemont5 mi8 km Plainfield6 mi10 km Crest Hill6 mi10 km Woodridge7 mi12 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: 41.6475°N, 88.0895°W·Elevation: 189m·Timezone: America/Chicago·Population: 39,719