Current Conditions

Sycamore, Illinois

76°F25°C
Rain

Wind

S 8 mph13 km/h

Humidity

61%

Cloud Cover

71%

As of Tuesday, September 8, 2026 at 8:32 PM CDT

Today's Outlook

Night

Mostly cloudy, with a low around 72°F22°C. Breezy from the SW at 6 to 8 mph10 to 12 km/h. 56% chance of light rain before dawn.

7-Day Forecast

DayConditionHigh (°F)Low (°F)Precip (mm)Cloud Cover (%)Wind (mph)
RainHigh 80°F26°CLow 71°F22°CPrecip 0.41 in10.3 mm99%Cloud 86%Wind WSW 7 mph12 km/hWednesday: Overcast and warm, with a high of 80°F26°C and morning low of 71°F22°C. Breezy from the WSW at 8 to 9 mph13 to 15 km/h. 99% chance of rain throughout the day. Humid. Wednesday Night: Mostly cloudy, with a low around 72°F22°C. Breezy from the SW at 6 to 8 mph10 to 12 km/h. 56% chance of light rain before dawn.
Partly CloudyHigh 79°F26°CLow 64°F18°CPrecip 0.01 in0.3 mm6%Cloud 66%Wind NNE 5 mph8 km/hThursday: Overcast and warm, with a high of 79°F26°C and morning low of 65°F18°C. Light wind from the NNE around 5 mph8 km/h. Thursday Night: Mostly cloudy, with a low around 64°F18°C. Light wind from the N around 5 mph8 km/h.
ClearHigh 82°F28°CLow 57°F14°CPrecip 0 in0 mmCloud 12%Wind SE 6 mph9 km/hFriday: Mostly clear and warm, with a high of 82°F28°C and morning low of 57°F14°C. Breezy from the SSE at 6 to 7 mph10 to 11 km/h. Friday Night: Mostly clear, with a low around 58°F14°C. Breezy from the SE at 5 to 7 mph9 to 12 km/h.
DrizzleHigh 84°F29°CLow 64°F18°CPrecip 0.04 in0.9 mm20%Cloud 48%Wind SW 7 mph12 km/hSaturday: Mostly cloudy and warm, with a high of 84°F29°C and morning low of 64°F18°C. Breezy from the SW at 8 to 10 mph14 to 16 km/h. 19% chance of drizzle around midday. Humid. Saturday Night: Partly cloudy, with a low around 65°F18°C. Breezy from the SW at 6 to 7 mph10 to 11 km/h. 20% chance of drizzle in the evening.
DrizzleHigh 77°F25°CLow 60°F16°CPrecip 0.05 in1.3 mm16%Cloud 35%Wind N 7 mph11 km/hSunday: Partly cloudy and warm, with a high of 77°F25°C and morning low of 60°F16°C. Breezy from the N at 7 mph11 km/h. 15% chance of drizzle in the morning. Sunday Night: Partly cloudy, with a low around 63°F17°C. Light wind from the N around 6 mph10 km/h. 16% chance of drizzle throughout the night.
ShowersHigh 80°F26°CLow 60°F16°CPrecip 0.16 in4.1 mm24%Cloud 58%Wind SSE 10 mph16 km/hMonday: Mostly cloudy and warm, with a high of 80°F26°C and morning low of 60°F16°C. Breezy from the SE at 10 to 13 mph17 to 21 km/h. 24% chance of showers throughout the day. Monday Night: Partly cloudy, with a low around 60°F16°C. Breezy from the SSE at 10 to 13 mph16 to 21 km/h. 14% chance of showers throughout the night.
ShowersHigh 81°F27°CLow 68°F20°CPrecip 0.14 in3.6 mm26%Cloud 69%Wind SW 10 mph16 km/hTuesday: Mostly cloudy and warm, with a high of 81°F27°C and morning low of 69°F21°C. Breezy from the WSW at 11 mph17 km/h. 22% chance of drizzle throughout the day. Tuesday Night: Mostly cloudy, with a low around 68°F20°C. Breezy from the SW at 10 to 13 mph15 to 21 km/h. 26% chance of showers throughout the night.

15-Day Forecast

Day High Low Precip Cloud Cover Condition Wind
WednesdaySep 980°F26°C71°F22°C0.41 in10.3 mm· 99%86%RainWSW 7 mph12 km/h
ThursdaySep 1079°F26°C64°F18°C0.01 in0.3 mm· 6%66%Partly CloudyNNE 5 mph8 km/h
FridaySep 1182°F28°C57°F14°C0 in0 mm· —12%ClearSE 6 mph9 km/h
SaturdaySep 1284°F29°C64°F18°C0.04 in0.9 mm· 20%48%DrizzleSW 7 mph12 km/h
SundaySep 1377°F25°C60°F16°C0.05 in1.3 mm· 16%35%DrizzleN 7 mph11 km/h
MondaySep 1480°F26°C60°F16°C0.16 in4.1 mm· 24%58%ShowersSSE 10 mph16 km/h
TuesdaySep 1581°F27°C68°F20°C0.14 in3.6 mm· 26%69%ShowersSW 10 mph16 km/h
WednesdaySep 1676°F24°C61°F16°C0.22 in5.7 mm· 28%60%ShowersENE 6 mph10 km/h
ThursdaySep 1780°F27°C65°F18°C0.2 in5.1 mm· 26%58%ShowersSSW 9 mph14 km/h
FridaySep 1874°F23°C62°F17°C0.17 in4.3 mm· 20%52%ShowersW 9 mph14 km/h
SaturdaySep 1972°F22°C56°F13°C0.13 in3.2 mm· 18%50%DrizzleWNW 8 mph12 km/h
SundaySep 2070°F21°C53°F12°C0.09 in2.4 mm· 12%51%ShowersN 8 mph13 km/h
MondaySep 2169°F20°C52°F11°C0.12 in3 mm· 15%53%ShowersENE 8 mph13 km/h
TuesdaySep 2268°F20°C52°F11°C0.13 in3.3 mm· 16%63%ShowersESE 8 mph12 km/h
WednesdaySep 2370°F21°C53°F12°C0.08 in2.1 mm· 16%60%DrizzleSE 8 mph13 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: 41.9889°N, 88.6868°W·Elevation: 266m·Timezone: America/Chicago·Population: 17,712