Current Conditions

Round Lake, Illinois

71°F22°C
Showers

Wind

W 9 mph14 km/h

Humidity

69%

Cloud Cover

8%

As of Tuesday, October 13, 2026 at 11:19 AM CDT

Today's Outlook

Day

Mostly clear and warm, with a high of 73°F23°C and morning low of 68°F20°C. Breezy from the W at 8 to 12 mph14 to 19 km/h.

Night

Mostly clear, with a low around 65°F18°C. Breezy from the WSW at 9 to 14 mph14 to 23 km/h. 53% chance of showers overnight.

7-Day Forecast

DayConditionHigh (°F)Low (°F)Precip (mm)Cloud Cover (%)Wind (mph)
ShowersHigh 74°F23°CLow 65°F18°CPrecip 0.04 in0.9 mm53%Cloud 13%Wind W 9 mph14 km/hTuesday: Mostly clear and warm, with a high of 73°F23°C and morning low of 68°F20°C. Breezy from the W at 8 to 12 mph14 to 19 km/h. Tuesday Night: Mostly clear, with a low around 65°F18°C. Breezy from the WSW at 9 to 14 mph14 to 23 km/h. 53% chance of showers overnight.
Light RainHigh 64°F18°CLow 57°F14°CPrecip 0.15 in3.8 mm74%Cloud 96%Wind NE 9 mph15 km/hWednesday: Overcast and mild, with a high of 61°F16°C. Breezy from the NNE at 10 to 11 mph15 to 17 km/h. 25% chance of drizzle in the morning. Wednesday Night: Overcast, with a low around 57°F14°C. Breezy from the NE at 9 to 11 mph14 to 18 km/h. 74% chance of light rain overnight.
RainHigh 59°F15°CLow 57°F14°CPrecip 0.38 in9.6 mm91%Cloud 99%Wind SE 11 mph17 km/hThursday: Overcast and mild, with a high of 59°F15°C. Breezy from the SE at 10 to 11 mph17 to 17 km/h. 90% chance of rain in the morning. Thursday Night: Overcast, with a low around 57°F14°C. Breezy from the ESE at 11 to 14 mph18 to 23 km/h. 91% chance of light rain in the evening.
Light RainHigh 56°F13°CLow 45°F7°CFeels 38°F3°CPrecip 0.12 in3 mm58%Cloud 71%Wind NW 17 mph27 km/hFriday: Mostly cloudy and mild, with a high of 51°F10°C. Windy from the NW at 18 to 19 mph28 to 31 km/h. 51% chance of drizzle in the morning. Dry air. Friday Night: Mostly cloudy, with a low around 45°F7°C. Windy from the NW at 16 mph25 km/h. 58% chance of showers overnight.
ClearHigh 52°F11°CLow 37°F3°CFeels 31°F0°CPrecip 0 in0 mm—Cloud 11%Wind W 10 mph15 km/hSaturday: Mostly clear and mild, with a high of 52°F11°C and morning low of 37°F3°C. Breezy from the WSW at 8 to 9 mph13 to 15 km/h. Dry air. Saturday Night: Mostly clear, with a low around 38°F3°C. Breezy from the WNW at 11 to 13 mph18 to 21 km/h.
ClearHigh 59°F15°CLow 42°F6°CFeels 35°F2°CPrecip 0 in0 mm—Cloud 6%Wind SSW 12 mph20 km/hSunday: Mostly clear and mild, with a high of 59°F15°C and morning low of 42°F6°C. Breezy from the SSW at 13 to 14 mph20 to 22 km/h. Dry air. Sunday Night: Mostly clear, with a low around 42°F6°C. Breezy from the SSW at 12 mph19 km/h.
Partly CloudyHigh 62°F17°CLow 47°F8°CFeels 42°F6°CPrecip 0 in0 mm—Cloud 48%Wind SSW 9 mph14 km/hMonday: Mostly cloudy and mild, with a high of 62°F17°C and morning low of 47°F8°C. Breezy from the SSW at 8 to 9 mph14 to 15 km/h. Dry air. Monday Night: Partly cloudy, with a low around 47°F8°C. Breezy from the SSW at 9 to 12 mph14 to 19 km/h.

15-Day Forecast

Day High Low Precip Cloud Cover Condition Wind
TuesdayOct 1374°F23°C65°F18°C0.04 in0.9 mm· 53%13%ShowersW 9 mph14 km/h
WednesdayOct 1464°F18°C57°F14°C0.15 in3.8 mm· 74%96%Light RainNE 9 mph15 km/h
ThursdayOct 1559°F15°C57°F14°C0.38 in9.6 mm· 91%99%RainSE 11 mph17 km/h
FridayOct 1656°F13°C45°F7°C
Feels 38°F3°C
0.12 in3 mm· 58%71%Light RainNW 17 mph27 km/h
SaturdayOct 1752°F11°C37°F3°C
Feels 31°F0°C
0 in0 mm· —11%ClearW 10 mph15 km/h
SundayOct 1859°F15°C42°F6°C
Feels 35°F2°C
0 in0 mm· —6%ClearSSW 12 mph20 km/h
MondayOct 1962°F17°C47°F8°C
Feels 42°F6°C
0 in0 mm· —48%Partly CloudySSW 9 mph14 km/h
TuesdayOct 2065°F18°C47°F8°C
Feels 44°F7°C
0 in0 mm· —26%ClearS 7 mph11 km/h
WednesdayOct 2166°F19°C53°F12°C0.05 in1.3 mm· 16%40%DrizzleS 8 mph14 km/h
ThursdayOct 2264°F18°C56°F14°C0.15 in3.8 mm· 25%65%ShowersSSW 9 mph15 km/h
FridayOct 2362°F17°C55°F13°C0.2 in5.1 mm· 28%71%Light RainS 10 mph16 km/h
SaturdayOct 2460°F15°C54°F12°C0.2 in5.1 mm· 31%72%Light RainSW 10 mph17 km/h
SundayOct 2556°F13°C49°F9°C
Feels 45°F7°C
0.1 in2.5 mm· 19%63%DrizzleW 10 mph16 km/h
MondayOct 2654°F12°C46°F8°C
Feels 42°F5°C
0.08 in2 mm· 15%60%DrizzleW 9 mph15 km/h
TuesdayOct 2753°F11°C45°F7°C
Feels 40°F5°C
0.08 in2 mm· 17%58%FlurriesW 9 mph15 km/h

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About This Forecast

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Coordinates: 42.3534°N, 88.0934°W·Elevation: 243m·Timezone: America/Chicago·Population: 18,461