Current Conditions

Deerfield, Illinois

86°F30°C

Drizzle

Feels like94°F35°C

Wind

WSW 8 mph12 km/h

Humidity

66%

Cloud Cover

36%

As of Wednesday, September 2, 2026 at 5:41 PM CDT

Today's Outlook

Day

Partly cloudy and hot, with a high of 89°F32°C — feels like 97°F36°C. Breezy from the SW at 9 to 10 mph15 to 16 km/h. Heat risk in the afternoon.

Night

Partly cloudy, with a low around 82°F28°C. Breezy from the SW at 7 to 8 mph12 to 12 km/h. 13% chance of drizzle overnight.

7-Day Forecast

Condition	High (°F)	Low (°F)	Precip (mm)	Cloud Cover (%)	Wind (mph)
Drizzle	High 89°F32°CFeels 97°F36°C	Low 82°F28°CFeels 88°F31°C	Precip 0.02 in0.4 mm13%	Cloud 31%	Wind SW 8 mph13 km/h	Wednesday: Partly cloudy and hot, with a high of 89°F32°C — feels like 97°F36°C. Breezy from the SW at 9 to 10 mph15 to 16 km/h. Heat risk in the afternoon. Wednesday Night: Partly cloudy, with a low around 82°F28°C. Breezy from the SW at 7 to 8 mph12 to 12 km/h. 13% chance of drizzle overnight.
Drizzle	High 85°F29°CFeels 92°F33°C	Low 78°F26°C	Precip 0.04 in0.9 mm22%	Cloud 48%	Wind SSW 7 mph11 km/h	Thursday: Mostly cloudy and warm, with a high of 85°F29°C and morning low of 78°F26°C — feels like 91°F33°C. Breezy from the SW at 7 mph11 km/h. 22% chance of drizzle in the afternoon. Heavy, humid air. Thursday Night: Partly cloudy, with a low around 79°F26°C. Breezy from the S at 7 mph11 km/h. 11% chance of drizzle before dawn.
Showers	High 86°F30°CFeels 95°F35°C	Low 77°F25°C	Precip 0.09 in2.4 mm26%	Cloud 62%	Wind ESE 7 mph12 km/h	Friday: Mostly cloudy and hot, with a high of 86°F30°C and morning low of 77°F25°C — feels like 95°F35°C. Breezy from the SSE at 7 to 8 mph12 to 13 km/h. 17% chance of drizzle in the morning. Heavy, humid air. Friday Night: Mostly cloudy, with a low around 77°F25°C. Breezy from the E at 7 to 8 mph12 to 14 km/h. 26% chance of showers throughout the night.
Showers	High 79°F26°C	Low 75°F24°C	Precip 0.19 in4.7 mm42%	Cloud 55%	Wind NE 8 mph13 km/h	Saturday: Mostly cloudy and warm, with a high of 79°F26°C. Breezy from the NE at 8 to 10 mph13 to 16 km/h. 26% chance of showers throughout the day. Heavy, humid air. Saturday Night: Mostly cloudy, with a low around 75°F24°C. Breezy from the NE at 8 to 10 mph13 to 16 km/h. 42% chance of showers overnight.
Partly Cloudy	High 76°F25°C	Low 72°F22°C	Precip 0.04 in0.9 mm8%	Cloud 61%	Wind E 8 mph13 km/h	Sunday: Mostly cloudy and warm, with a high of 76°F25°C and morning low of 72°F22°C. Breezy from the E at 8 to 9 mph13 to 15 km/h. Humid. Sunday Night: Mostly cloudy, with a low around 73°F23°C. Breezy from the E at 8 mph13 km/h.
Partly Cloudy	High 78°F26°C	Low 71°F21°C	Precip 0.01 in0.3 mm6%	Cloud 56%	Wind ESE 8 mph13 km/h	Monday: Partly cloudy and warm, with a high of 78°F26°C and morning low of 71°F21°C. Breezy from the ESE at 8 to 9 mph13 to 15 km/h. Monday Night: Mostly cloudy, with a low around 72°F22°C. Breezy from the ESE at 9 mph14 km/h.
Partly Cloudy	High 82°F28°CFeels 85°F29°C	Low 70°F21°C	Precip 0.02 in0.5 mm5%	Cloud 64%	Wind SSE 11 mph18 km/h	Tuesday: Mostly cloudy and warm, with a high of 82°F28°C and morning low of 70°F21°C. Breezy from the SSE at 11 to 12 mph18 to 19 km/h. Humid. Tuesday Night: Mostly cloudy, with a low around 72°F22°C. Breezy from the SSE at 12 to 13 mph19 to 21 km/h.

15-Day Forecast

	Day	High	Low	Precip	Cloud Cover	Condition	Wind
	WednesdaySep 2	89°F32°C Feels 97°F36°C	82°F28°C Feels 88°F31°C	0.02 in0.4 mm· 13%	31%	Drizzle	SW 8 mph13 km/h
DayPartly cloudy and hot, with a high of 89°F32°C — feels like 97°F36°C. Breezy from the SW at 9 to 10 mph15 to 16 km/h. Heat risk in the afternoon. NightPartly cloudy, with a low around 82°F28°C. Breezy from the SW at 7 to 8 mph12 to 12 km/h. 13% chance of drizzle overnight.
	ThursdaySep 3	85°F29°C Feels 92°F33°C	78°F26°C	0.04 in0.9 mm· 22%	48%	Drizzle	SSW 7 mph11 km/h
DayMostly cloudy and warm, with a high of 85°F29°C and morning low of 78°F26°C — feels like 91°F33°C. Breezy from the SW at 7 mph11 km/h. 22% chance of drizzle in the afternoon. Heavy, humid air. NightPartly cloudy, with a low around 79°F26°C. Breezy from the S at 7 mph11 km/h. 11% chance of drizzle before dawn.
	FridaySep 4	86°F30°C Feels 95°F35°C	77°F25°C	0.09 in2.4 mm· 26%	62%	Showers	ESE 7 mph12 km/h
DayMostly cloudy and hot, with a high of 86°F30°C and morning low of 77°F25°C — feels like 95°F35°C. Breezy from the SSE at 7 to 8 mph12 to 13 km/h. 17% chance of drizzle in the morning. Heavy, humid air. NightMostly cloudy, with a low around 77°F25°C. Breezy from the E at 7 to 8 mph12 to 14 km/h. 26% chance of showers throughout the night.
	SaturdaySep 5	79°F26°C	75°F24°C	0.19 in4.7 mm· 42%	55%	Showers	NE 8 mph13 km/h
DayMostly cloudy and warm, with a high of 79°F26°C. Breezy from the NE at 8 to 10 mph13 to 16 km/h. 26% chance of showers throughout the day. Heavy, humid air. NightMostly cloudy, with a low around 75°F24°C. Breezy from the NE at 8 to 10 mph13 to 16 km/h. 42% chance of showers overnight.
	SundaySep 6	76°F25°C	72°F22°C	0.04 in0.9 mm· 8%	61%	Partly Cloudy	E 8 mph13 km/h
DayMostly cloudy and warm, with a high of 76°F25°C and morning low of 72°F22°C. Breezy from the E at 8 to 9 mph13 to 15 km/h. Humid. NightMostly cloudy, with a low around 73°F23°C. Breezy from the E at 8 mph13 km/h.
	MondaySep 7	78°F26°C	71°F21°C	0.01 in0.3 mm· 6%	56%	Partly Cloudy	ESE 8 mph13 km/h
DayPartly cloudy and warm, with a high of 78°F26°C and morning low of 71°F21°C. Breezy from the ESE at 8 to 9 mph13 to 15 km/h. NightMostly cloudy, with a low around 72°F22°C. Breezy from the ESE at 9 mph14 km/h.
	TuesdaySep 8	82°F28°C Feels 85°F29°C	70°F21°C	0.02 in0.5 mm· 5%	64%	Partly Cloudy	SSE 11 mph18 km/h
DayMostly cloudy and warm, with a high of 82°F28°C and morning low of 70°F21°C. Breezy from the SSE at 11 to 12 mph18 to 19 km/h. Humid. NightMostly cloudy, with a low around 72°F22°C. Breezy from the SSE at 12 to 13 mph19 to 21 km/h.
	WednesdaySep 9	86°F30°C Feels 91°F33°C	76°F25°C	0.06 in1.4 mm· 15%	48%	Drizzle	SW 11 mph18 km/h
DayPartly cloudy and hot, with a high of 86°F30°C and morning low of 76°F25°C. Breezy from the SW at 11 to 12 mph18 to 19 km/h. 15% chance of drizzle in the morning. Humid. NightPartly cloudy, with a low around 77°F25°C. Breezy from the SW at 12 to 14 mph19 to 22 km/h. 11% chance of drizzle throughout the night.
	ThursdaySep 10	80°F26°C	73°F23°C	0.21 in5.4 mm· 25%	53%	Showers	W 10 mph16 km/h
DayMostly cloudy and warm, with a high of 80°F26°C and morning low of 73°F23°C. Breezy from the WNW at 10 mph15 km/h. 25% chance of showers throughout the day. Humid. NightPartly cloudy, with a low around 74°F23°C. Breezy from the W at 10 to 11 mph16 to 18 km/h. 22% chance of showers throughout the night.
	FridaySep 11	78°F26°C	70°F21°C	0.1 in2.5 mm· 18%	46%	Showers	SSW 10 mph16 km/h
DayPartly cloudy and warm, with a high of 78°F26°C and morning low of 70°F21°C. Breezy from the SSW at 10 mph16 km/h. 18% chance of showers throughout the day. NightPartly cloudy, with a low around 71°F22°C. Breezy from the S at 10 to 11 mph16 to 17 km/h. 17% chance of drizzle throughout the night.
	SaturdaySep 12	79°F26°C	70°F21°C	0.09 in2.4 mm· 15%	51%	Drizzle	SSW 11 mph18 km/h
DayMostly cloudy and warm, with a high of 79°F26°C and morning low of 70°F21°C. Breezy from the SSW at 11 mph17 km/h. 15% chance of drizzle throughout the day. NightMostly cloudy, with a low around 71°F22°C. Breezy from the SSW at 11 mph18 km/h. 15% chance of drizzle throughout the night.
	SundaySep 13	79°F26°C	70°F21°C	0.13 in3.4 mm· 21%	55%	Showers	SSW 12 mph19 km/h
DayMostly cloudy and warm, with a high of 79°F26°C and morning low of 70°F21°C. Breezy from the SSW at 12 mph19 km/h. 21% chance of showers throughout the day. NightMostly cloudy, with a low around 71°F22°C. Breezy from the SSW at 12 mph19 km/h. 16% chance of showers throughout the night.
	MondaySep 14	78°F26°C	70°F21°C	0.15 in3.8 mm· 21%	55%	Showers	SSW 11 mph18 km/h
DayMostly cloudy and warm, with a high of 78°F26°C and morning low of 70°F21°C. Breezy from the SSW at 12 mph19 km/h. 18% chance of drizzle throughout the day. NightMostly cloudy, with a low around 71°F22°C. Breezy from the SSW at 11 to 12 mph18 to 20 km/h. 21% chance of showers throughout the night.
	TuesdaySep 15	77°F25°C	68°F20°C	0.15 in3.7 mm· 21%	47%	Showers	SW 11 mph17 km/h
DayPartly cloudy and warm, with a high of 77°F25°C and morning low of 68°F20°C. Breezy from the WSW at 11 mph17 km/h. 19% chance of showers throughout the day. NightPartly cloudy, with a low around 69°F21°C. Breezy from the SW at 10 to 11 mph17 to 18 km/h. 21% chance of showers throughout the night.
	WednesdaySep 16	74°F23°C	66°F19°C	0.11 in2.7 mm· 18%	49%	Showers	W 10 mph16 km/h
DayMostly cloudy and warm, with a high of 74°F23°C and morning low of 66°F19°C. Breezy from the NNW at 10 to 11 mph16 to 17 km/h. 16% chance of showers throughout the day. NightPartly cloudy, with a low around 68°F20°C. Breezy from the SW at 10 mph16 km/h. 18% chance of showers throughout the night.

Nearby Cities

Highland Park2 mi4 km Northbrook3 mi5 km Wheeling5 mi8 km Lake Forest6 mi10 km Buffalo Grove6 mi10 km Prospect Heights7 mi11 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: 42.1711°N, 87.8445°W·Elevation: 209m·Timezone: America/Chicago·Population: 19,019