Current Conditions

Round Lake Beach, Illinois

66°F19°C
Partly Cloudy

Wind

S 5 mph8 km/h

Humidity

69%

Cloud Cover

98%

As of Friday, July 24, 2026 at 1:32 AM CDT

Today's Outlook

Day

Mostly cloudy and warm, with a high of 78°F26°C and morning low of 65°F18°C. Breezy from the S at 5 to 7 mph8 to 11 km/h.

Night

Mostly cloudy, with a low around 64°F18°C. Breezy from the S at 6 to 7 mph10 to 12 km/h.

7-Day Forecast

DayConditionHigh (°F)Low (°F)Precip (mm)Cloud Cover (%)Wind (mph)
FridayJul 24Partly CloudyHigh 78°F26°CLow 64°F18°CPrecip 0 in0 mmCloud 62%Wind S 5 mph9 km/hFriday: Mostly cloudy and warm, with a high of 78°F26°C and morning low of 65°F18°C. Breezy from the S at 5 to 7 mph8 to 11 km/h. Friday Night: Mostly cloudy, with a low around 64°F18°C. Breezy from the S at 6 to 7 mph10 to 12 km/h.
SaturdayJul 25Partly CloudyHigh 80°F27°CLow 65°F18°CPrecip 0.01 in0.2 mm2%Cloud 49%Wind SW 7 mph12 km/hSaturday: Mostly cloudy and warm, with a high of 80°F27°C and morning low of 66°F19°C. Breezy from the SSW at 8 to 9 mph13 to 14 km/h. Saturday Night: Partly cloudy, with a low around 65°F18°C. Breezy from the SW at 7 mph11 km/h.
SundayJul 26ShowersHigh 88°F31°CFeels 94°F35°CLow 73°F23°CPrecip 0.07 in1.7 mm19%Cloud 62%Wind SW 6 mph10 km/hSunday: Mostly cloudy and hot, with a high of 88°F31°C and morning low of 73°F23°C — feels like 95°F35°C. Breezy from the SW at 6 to 7 mph9 to 12 km/h. Heavy, humid air. Sunday Night: Mostly cloudy, with a low around 73°F23°C. Breezy from the SW at 7 mph11 km/h. 19% chance of showers in the evening.
MondayJul 27ShowersHigh 88°F31°CFeels 95°F35°CLow 75°F24°CPrecip 0.2 in5.1 mm26%Cloud 44%Wind SW 7 mph11 km/hMonday: Partly cloudy and hot, with a high of 88°F31°C and morning low of 75°F24°C — feels like 95°F35°C. Breezy from the SW at 7 mph11 km/h. 24% chance of showers throughout the day. Heavy, humid air. Monday Night: Partly cloudy, with a low around 76°F24°C. Breezy from the SW at 7 mph11 km/h. 26% chance of showers throughout the night.
TuesdayJul 28ShowersHigh 81°F27°CFeels 84°F29°CLow 72°F22°CPrecip 0.08 in2 mm24%Cloud 31%Wind NNE 9 mph15 km/hTuesday: Partly cloudy and warm, with a high of 81°F27°C and morning low of 73°F23°C. Breezy from the NNE at 10 to 11 mph16 to 17 km/h. 12% chance of drizzle in the morning. Humid. Tuesday Night: Partly cloudy, with a low around 72°F22°C. Breezy from the NNE at 8 to 9 mph13 to 14 km/h. 24% chance of showers overnight.
WednesdayJul 29ClearHigh 81°F27°CLow 68°F20°CPrecip 0.02 in0.4 mm4%Cloud 16%Wind NE 7 mph11 km/hWednesday: Mostly clear and warm, with a high of 81°F27°C and morning low of 69°F21°C. Breezy from the NE at 7 to 8 mph11 to 12 km/h. Wednesday Night: Mostly clear, with a low around 68°F20°C. Breezy from the NE at 7 to 8 mph11 to 12 km/h.
ThursdayJul 30DrizzleHigh 85°F29°CLow 69°F21°CPrecip 0.03 in0.8 mm12%Cloud 26%Wind SE 6 mph10 km/hThursday: Partly cloudy and warm, with a high of 85°F29°C and morning low of 70°F21°C. Breezy from the SE at 6 to 7 mph10 to 11 km/h. Thursday Night: Partly cloudy, with a low around 69°F21°C. Light wind from the SE around 6 mph9 km/h. 12% chance of drizzle in the evening.

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
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Coordinates: 42.3717°N, 88.0901°W·Elevation: 233m·Timezone: America/Chicago·Population: 27,852