Current Conditions

Lake Forest, Illinois

69°F20°C
Showers

Wind

W 7 mph11 km/h

Humidity

74%

Cloud Cover

7%

As of Tuesday, October 13, 2026 at 12:23 PM CDT

Today's Outlook

Day

Mostly clear and warm, with a high of 70°F21°C. Breezy from the W at 9 to 14 mph14 to 22 km/h.

Night

Mostly clear, with a low around 65°F18°C. Windy from the SW at 11 to 17 mph17 to 27 km/h. 45% chance of showers overnight.

7-Day Forecast

DayConditionHigh (°F)Low (°F)Precip (mm)Cloud Cover (%)Wind (mph)
ShowersHigh 72°F22°CLow 65°F18°CPrecip 0.03 in0.7 mm45%Cloud 13%Wind WSW 10 mph15 km/hTuesday: Mostly clear and warm, with a high of 70°F21°C. Breezy from the W at 9 to 14 mph14 to 22 km/h. Tuesday Night: Mostly clear, with a low around 65°F18°C. Windy from the SW at 11 to 17 mph17 to 27 km/h. 45% chance of showers overnight.
Light RainHigh 64°F18°CLow 58°F15°CPrecip 0.19 in4.7 mm81%Cloud 96%Wind NE 12 mph20 km/hWednesday: Overcast and mild, with a high of 62°F16°C. Breezy from the NNE at 13 to 14 mph20 to 22 km/h. 33% chance of light rain in the morning. Wednesday Night: Overcast, with a low around 58°F15°C. Breezy from the NE at 12 to 14 mph19 to 23 km/h. 81% chance of light rain overnight.
RainHigh 60°F16°CLow 58°F14°CPrecip 0.44 in11.3 mm95%Cloud 99%Wind SE 13 mph22 km/hThursday: Overcast and mild, with a high of 60°F15°C. Breezy from the SE at 13 mph21 km/h. 93% chance of rain in the morning. Thursday Night: Overcast, with a low around 58°F14°C. Windy from the ESE at 14 to 17 mph22 to 28 km/h. 95% chance of rain in the evening.
Light RainHigh 57°F14°CLow 48°F9°CFeels 41°F5°CPrecip 0.17 in4.4 mm71%Cloud 73%Wind NW 21 mph34 km/hFriday: Mostly cloudy and mild, with a high of 52°F11°C. Windy from the NW at 22 to 23 mph35 to 37 km/h. 60% chance of light rain in the morning. Dry air. Friday Night: Mostly cloudy, with a low around 48°F9°C. Windy from the NW at 20 to 22 mph32 to 35 km/h. 71% chance of light rain overnight.
ClearHigh 52°F11°CLow 43°F6°CFeels 37°F3°CPrecip 0 in0.1 mm6%Cloud 18%Wind WNW 12 mph20 km/hSaturday: Mostly clear and mild, with a high of 52°F11°C and morning low of 43°F6°C. Breezy from the W at 10 to 11 mph16 to 18 km/h. Dry air. Saturday Night: Mostly clear, with a low around 44°F6°C. Windy from the WNW at 15 to 19 mph23 to 30 km/h.
ClearHigh 58°F14°CLow 46°F8°CFeels 40°F4°CPrecip 0 in0 mm—Cloud 7%Wind SSW 15 mph24 km/hSunday: Mostly clear and mild, with a high of 58°F14°C and morning low of 46°F8°C. Windy from the SSW at 15 to 16 mph24 to 25 km/h. Dry air. Sunday Night: Mostly clear, with a low around 46°F8°C. Breezy from the SSW at 14 to 15 mph23 to 24 km/h.
Partly CloudyHigh 60°F15°CLow 51°F10°CPrecip 0 in0 mm—Cloud 47%Wind SSW 11 mph17 km/hMonday: Mostly cloudy and mild, with a high of 60°F15°C and morning low of 51°F10°C. Breezy from the SSW at 10 to 11 mph16 to 18 km/h. Dry air. Monday Night: Partly cloudy, with a low around 51°F10°C. Breezy from the SSW at 11 to 14 mph18 to 23 km/h.

15-Day Forecast

Day High Low Precip Cloud Cover Condition Wind
TuesdayOct 1372°F22°C65°F18°C0.03 in0.7 mm· 45%13%ShowersWSW 10 mph15 km/h
WednesdayOct 1464°F18°C58°F15°C0.19 in4.7 mm· 81%96%Light RainNE 12 mph20 km/h
ThursdayOct 1560°F16°C58°F14°C0.44 in11.3 mm· 95%99%RainSE 13 mph22 km/h
FridayOct 1657°F14°C48°F9°C
Feels 41°F5°C
0.17 in4.4 mm· 71%73%Light RainNW 21 mph34 km/h
SaturdayOct 1752°F11°C43°F6°C
Feels 37°F3°C
0 in0.1 mm· 6%18%ClearWNW 12 mph20 km/h
SundayOct 1858°F14°C46°F8°C
Feels 40°F4°C
0 in0 mm· —7%ClearSSW 15 mph24 km/h
MondayOct 1960°F15°C51°F10°C0 in0 mm· —47%Partly CloudySSW 11 mph17 km/h
TuesdayOct 2061°F16°C52°F11°C0 in0 mm· —26%ClearS 8 mph13 km/h
WednesdayOct 2163°F17°C56°F13°C0.05 in1.2 mm· 14%38%DrizzleS 10 mph16 km/h
ThursdayOct 2261°F16°C58°F14°C0.15 in3.9 mm· 24%64%ShowersSSW 11 mph18 km/h
FridayOct 2360°F16°C56°F14°C0.21 in5.3 mm· 28%71%Light RainS 12 mph19 km/h
SaturdayOct 2459°F15°C55°F13°C0.22 in5.6 mm· 30%73%Light RainSW 13 mph20 km/h
SundayOct 2555°F13°C52°F11°C0.11 in2.7 mm· 19%63%DrizzleW 12 mph19 km/h
MondayOct 2653°F12°C49°F10°C
Feels 45°F7°C
0.09 in2.4 mm· 17%61%DrizzleWNW 11 mph18 km/h
TuesdayOct 2753°F11°C48°F9°C
Feels 44°F7°C
0.09 in2.4 mm· 19%59%FlurriesW 12 mph19 km/h

Nearby Cities

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

PatternExampleDescription
/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=11.5Find 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: 42.2586°N, 87.8406°W·Elevation: 210m·Timezone: America/Chicago·Population: 19,408