Current Conditions

DeKalb, Illinois

62°F17°C
Partly Cloudy

Wind

SSE 4 mph6 km/h

Humidity

73%

Cloud Cover

92%

As of Friday, July 24, 2026 at 2:11 AM CDT

Today's Outlook

Day

Mostly cloudy and warm, with a high of 78°F25°C and morning low of 62°F17°C. Light wind from the S around 5 mph8 km/h.

Night

Mostly cloudy, with a low around 60°F16°C. Light wind from the S around 5 mph7 km/h.

7-Day Forecast

DayConditionHigh (°F)Low (°F)Precip (mm)Cloud Cover (%)Wind (mph)
FridayJul 24Partly CloudyHigh 78°F25°CLow 60°F16°CPrecip 0 in0.1 mm6%Cloud 61%Wind S 5 mph8 km/hFriday: Mostly cloudy and warm, with a high of 78°F25°C and morning low of 62°F17°C. Light wind from the S around 5 mph8 km/h. Friday Night: Mostly cloudy, with a low around 60°F16°C. Light wind from the S around 5 mph7 km/h.
SaturdayJul 25Partly CloudyHigh 81°F27°CFeels 84°F29°CLow 64°F18°CPrecip 0.01 in0.2 mm6%Cloud 63%Wind SSW 6 mph10 km/hSaturday: Overcast and warm, with a high of 81°F27°C and morning low of 66°F19°C. Breezy from the SSW at 7 to 8 mph11 to 13 km/h. Humid. Saturday Night: Partly cloudy, with a low around 64°F18°C. Light wind from the SSW around 5 mph8 km/h.
SundayJul 26ShowersHigh 91°F33°CFeels 99°F37°CLow 72°F22°CPrecip 0.09 in2.3 mm22%Cloud 69%Wind SW 6 mph10 km/hSunday: Mostly cloudy and hot, with a high of 91°F33°C and morning low of 73°F23°C — feels like 99°F37°C. Breezy from the SW at 7 to 9 mph11 to 15 km/h. 10% chance of drizzle in the morning. Heat risk in the afternoon. Sunday Night: Mostly cloudy, with a low around 72°F22°C. Breezy from the SW at 6 to 7 mph9 to 12 km/h. 22% chance of showers in the evening.
MondayJul 27ShowersHigh 91°F33°CFeels 101°F38°CLow 74°F24°CPrecip 0.33 in8.4 mm35%Cloud 43%Wind SW 6 mph10 km/hMonday: Partly cloudy and hot, with a high of 91°F33°C and morning low of 74°F24°C — feels like 100°F38°C. Breezy from the SW at 7 mph11 km/h. 35% chance of showers throughout the day. Heat risk in the afternoon. Monday Night: Partly cloudy, with a low around 75°F24°C. Breezy from the SW at 6 to 7 mph10 to 11 km/h. 34% chance of showers throughout the night.
TuesdayJul 28DrizzleHigh 88°F31°CLow 73°F23°CPrecip 0.04 in1 mm12%Cloud 31%Wind NNE 7 mph11 km/hTuesday: Partly cloudy and hot, with a high of 88°F31°C and morning low of 73°F23°C. Breezy from the NNE at 8 mph12 km/h. Humid. Tuesday Night: Partly cloudy, with a low around 73°F23°C. Light wind from the NE around 6 mph10 km/h. 12% chance of drizzle overnight.
WednesdayJul 29DrizzleHigh 88°F31°CLow 67°F20°CPrecip 0.03 in0.7 mm11%Cloud 20%Wind NE 6 mph9 km/hWednesday: Mostly clear and hot, with a high of 88°F31°C and morning low of 68°F20°C. Light wind from the NNE around 6 mph10 km/h. Wednesday Night: Mostly clear, with a low around 67°F20°C. Light wind from the ENE around 5 mph9 km/h. 11% chance of drizzle overnight.
ThursdayJul 30ClearHigh 89°F32°CLow 68°F20°CPrecip 0.02 in0.5 mm7%Cloud 31%Wind S 5 mph9 km/hThursday: Partly cloudy and hot, with a high of 89°F32°C and morning low of 69°F21°C. Light wind from the SW around 6 mph9 km/h. Thursday Night: Partly cloudy, with a low around 68°F20°C. Light wind from the SSE around 5 mph8 km/h.

15-Day Forecast

Day High (°F) Low (°F) Precip (mm) Cloud Cover (%) Condition Wind (mph)

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.

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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

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Coordinates: 41.9295°N, 88.7504°W·Elevation: 268m·Timezone: America/Chicago·Population: 43,211