Current Conditions
Round Lake, Illinois
Wind
ESE 3 mph5 km/h
Humidity
81%
Cloud Cover
100%
As of Thursday, August 13, 2026 at 1:42 PM CDT
Today's Outlook
Day
Overcast and warm, with a high of 76°F24°C. Breezy from the E at 4 to 7 mph7 to 11 km/h. 64% chance of light rain in the afternoon. Heavy, humid air.
Night
Overcast, with a low around 73°F23°C. Light wind from the E around 5 mph8 km/h. 57% chance of light rain throughout the night.
7-Day Forecast
| Day | Condition | High (°F) | Low (°F) | Precip (mm) | Cloud Cover (%) | Wind (mph) | |
|---|---|---|---|---|---|---|---|
| Light Rain | High 76°F24°C | Low 71°F22°C | Precip 0.08 in2.1 mm64% | Cloud 97% | Wind E 5 mph7 km/h | Thursday: Overcast and warm, with a high of 76°F24°C. Breezy from the E at 4 to 7 mph7 to 11 km/h. 64% chance of light rain in the afternoon. Heavy, humid air. Thursday Night: Overcast, with a low around 73°F23°C. Light wind from the E around 5 mph8 km/h. 57% chance of light rain throughout the night. | |
| Light Rain | High 76°F24°C | Low 71°F22°C | Precip 0.33 in8.4 mm76% | Cloud 95% | Wind ENE 7 mph11 km/h | Friday: Overcast and warm, with a high of 76°F24°C. Breezy from the E at 7 to 8 mph12 to 13 km/h. 76% chance of light rain throughout the day. Humid. Friday Night: Overcast, with a low around 72°F22°C. Breezy from the ENE at 7 mph11 km/h. 52% chance of light rain throughout the night. | |
| Rain | High 78°F25°C | Low 72°F22°C | Precip 0.43 in10.8 mm70% | Cloud 92% | Wind SE 6 mph10 km/h | Saturday: Overcast and warm, with a high of 77°F25°C and morning low of 72°F22°C. Breezy from the SSE at 7 mph11 km/h. 70% chance of rain throughout the day. Heavy, humid air. Saturday Night: Overcast, with a low around 72°F22°C. Light wind from the SE around 6 mph9 km/h. 30% chance of light rain throughout the night. | |
| Light Rain | High 83°F28°CFeels 88°F31°C | Low 74°F23°C | Precip 0.3 in7.7 mm55% | Cloud 84% | Wind WNW 7 mph12 km/h | Sunday: Overcast and warm, with a high of 83°F28°C and morning low of 74°F23°C. Breezy from the WNW at 8 mph12 km/h. 43% chance of light rain throughout the day. Heavy, humid air. Sunday Night: Overcast, with a low around 74°F23°C. Breezy from the WNW at 7 to 8 mph11 to 13 km/h. 55% chance of light rain throughout the night. | |
| Drizzle | High 77°F25°C | Low 68°F20°C | Precip 0.04 in1.1 mm27% | Cloud 58% | Wind NNE 6 mph10 km/h | Monday: Mostly cloudy and warm, with a high of 77°F25°C and morning low of 68°F20°C. Breezy from the N at 6 to 7 mph10 to 11 km/h. 15% chance of drizzle around midday. Monday Night: Partly cloudy, with a low around 69°F21°C. Breezy from the NNE at 6 to 9 mph10 to 14 km/h. 27% chance of drizzle overnight. | |
| Drizzle | High 81°F27°C | Low 66°F19°C | Precip 0.02 in0.4 mm18% | Cloud 58% | Wind SW 7 mph12 km/h | Tuesday: Mostly cloudy and warm, with a high of 81°F27°C and morning low of 66°F19°C. Breezy from the SW at 7 to 9 mph12 to 15 km/h. Tuesday Night: Mostly cloudy, with a low around 66°F19°C. Breezy from the SSW at 7 to 9 mph11 to 15 km/h. 18% chance of drizzle in the evening. | |
| Light Rain | High 78°F26°C | Low 70°F21°C | Precip 0.28 in7.2 mm52% | Cloud 70% | Wind WSW 9 mph15 km/h | Wednesday: Mostly cloudy and warm, with a high of 78°F26°C and morning low of 70°F21°C. Breezy from the WSW at 9 to 10 mph15 to 15 km/h. 52% chance of light rain throughout the day. Humid. Wednesday Night: Mostly cloudy, with a low around 70°F21°C. Breezy from the WSW at 9 to 10 mph15 to 16 km/h. 50% chance of showers throughout the night. |
15-Day Forecast
| Day | High | Low | Precip | Cloud Cover | Condition | Wind | |
|---|---|---|---|---|---|---|---|
| ThursdayAug 13 | 76°F24°C | 71°F22°C | 0.08 in2.1 mm· 64% | 97% | Light Rain | E 5 mph7 km/h | |
DayOvercast and warm, with a high of 76°F24°C. Breezy from the E at 4 to 7 mph7 to 11 km/h. 64% chance of light rain in the afternoon. Heavy, humid air. NightOvercast, with a low around 73°F23°C. Light wind from the E around 5 mph8 km/h. 57% chance of light rain throughout the night. | |||||||
| FridayAug 14 | 76°F24°C | 71°F22°C | 0.33 in8.4 mm· 76% | 95% | Light Rain | ENE 7 mph11 km/h | |
DayOvercast and warm, with a high of 76°F24°C. Breezy from the E at 7 to 8 mph12 to 13 km/h. 76% chance of light rain throughout the day. Humid. NightOvercast, with a low around 72°F22°C. Breezy from the ENE at 7 mph11 km/h. 52% chance of light rain throughout the night. | |||||||
| SaturdayAug 15 | 78°F25°C | 72°F22°C | 0.43 in10.8 mm· 70% | 92% | Rain | SE 6 mph10 km/h | |
DayOvercast and warm, with a high of 77°F25°C and morning low of 72°F22°C. Breezy from the SSE at 7 mph11 km/h. 70% chance of rain throughout the day. Heavy, humid air. NightOvercast, with a low around 72°F22°C. Light wind from the SE around 6 mph9 km/h. 30% chance of light rain throughout the night. | |||||||
| SundayAug 16 | 83°F28°C Feels 88°F31°C | 74°F23°C | 0.3 in7.7 mm· 55% | 84% | Light Rain | WNW 7 mph12 km/h | |
DayOvercast and warm, with a high of 83°F28°C and morning low of 74°F23°C. Breezy from the WNW at 8 mph12 km/h. 43% chance of light rain throughout the day. Heavy, humid air. NightOvercast, with a low around 74°F23°C. Breezy from the WNW at 7 to 8 mph11 to 13 km/h. 55% chance of light rain throughout the night. | |||||||
| MondayAug 17 | 77°F25°C | 68°F20°C | 0.04 in1.1 mm· 27% | 58% | Drizzle | NNE 6 mph10 km/h | |
DayMostly cloudy and warm, with a high of 77°F25°C and morning low of 68°F20°C. Breezy from the N at 6 to 7 mph10 to 11 km/h. 15% chance of drizzle around midday. NightPartly cloudy, with a low around 69°F21°C. Breezy from the NNE at 6 to 9 mph10 to 14 km/h. 27% chance of drizzle overnight. | |||||||
| TuesdayAug 18 | 81°F27°C | 66°F19°C | 0.02 in0.4 mm· 18% | 58% | Drizzle | SW 7 mph12 km/h | |
DayMostly cloudy and warm, with a high of 81°F27°C and morning low of 66°F19°C. Breezy from the SW at 7 to 9 mph12 to 15 km/h. NightMostly cloudy, with a low around 66°F19°C. Breezy from the SSW at 7 to 9 mph11 to 15 km/h. 18% chance of drizzle in the evening. | |||||||
| WednesdayAug 19 | 78°F26°C | 70°F21°C | 0.28 in7.2 mm· 52% | 70% | Light Rain | WSW 9 mph15 km/h | |
DayMostly cloudy and warm, with a high of 78°F26°C and morning low of 70°F21°C. Breezy from the WSW at 9 to 10 mph15 to 15 km/h. 52% chance of light rain throughout the day. Humid. NightMostly cloudy, with a low around 70°F21°C. Breezy from the WSW at 9 to 10 mph15 to 16 km/h. 50% chance of showers throughout the night. | |||||||
| ThursdayAug 20 | 74°F23°C | 65°F18°C | 0.08 in2.1 mm· 11% | 47% | Drizzle | N 8 mph13 km/h | |
DayMostly cloudy and warm, with a high of 74°F23°C and morning low of 65°F18°C. Breezy from the N at 8 to 9 mph13 to 14 km/h. 11% chance of drizzle throughout the day. NightPartly cloudy, with a low around 66°F19°C. Breezy from the N at 8 to 9 mph12 to 14 km/h. 10% chance of drizzle throughout the night. | |||||||
| FridayAug 21 | 76°F24°C | 63°F17°C | 0.07 in1.8 mm· 11% | 50% | Drizzle | SE 6 mph10 km/h | |
DayMostly cloudy and warm, with a high of 76°F24°C and morning low of 63°F17°C. Breezy from the SE at 7 mph11 km/h. 11% chance of drizzle throughout the day. NightPartly cloudy, with a low around 63°F17°C. Light wind from the ESE around 6 mph10 km/h. | |||||||
| SaturdayAug 22 | 79°F26°C | 66°F19°C | 0.1 in2.6 mm· 18% | 48% | Showers | S 6 mph10 km/h | |
DayMostly cloudy and warm, with a high of 79°F26°C and morning low of 66°F19°C. Breezy from the SSW at 7 mph11 km/h. 18% chance of showers throughout the day. NightPartly cloudy, with a low around 66°F19°C. Light wind from the S around 6 mph10 km/h. 15% chance of drizzle throughout the night. | |||||||
| SundayAug 23 | 80°F27°C | 67°F19°C | 0.02 in0.6 mm· 9% | 40% | Clear | SW 7 mph12 km/h | |
DayPartly cloudy and warm, with a high of 80°F27°C and morning low of 67°F19°C. Breezy from the WSW at 8 mph12 km/h. NightPartly cloudy, with a low around 67°F20°C. Breezy from the SW at 7 mph11 km/h. | |||||||
| MondayAug 24 | 81°F27°C | 67°F20°C | 0.03 in0.8 mm· 7% | 41% | Partly Cloudy | SSW 8 mph12 km/h | |
DayPartly cloudy and warm, with a high of 81°F27°C and morning low of 67°F20°C. Breezy from the SSW at 8 to 9 mph13 to 14 km/h. NightPartly cloudy, with a low around 68°F20°C. Breezy from the SSW at 7 to 8 mph12 to 12 km/h. | |||||||
| TuesdayAug 25 | 81°F27°C | 68°F20°C | 0.04 in1 mm· 9% | 46% | Partly Cloudy | SSE 7 mph12 km/h | |
DayMostly cloudy and warm, with a high of 81°F27°C and morning low of 68°F20°C. Breezy from the SSE at 7 to 8 mph12 to 13 km/h. NightPartly cloudy, with a low around 68°F20°C. Breezy from the SSE at 7 to 8 mph12 to 12 km/h. | |||||||
| WednesdayAug 26 | 80°F27°C | 68°F20°C | 0.07 in1.8 mm· 14% | 50% | Drizzle | E 7 mph12 km/h | |
DayMostly cloudy and warm, with a high of 80°F27°C and morning low of 68°F20°C. Breezy from the ESE at 8 mph12 km/h. 14% chance of drizzle throughout the day. NightPartly cloudy, with a low around 69°F20°C. Breezy from the ENE at 7 mph11 km/h. 13% chance of drizzle throughout the night. | |||||||
| ThursdayAug 27 | 78°F26°C | 67°F19°C | 0.05 in1.2 mm· 13% | 47% | Drizzle | NE 8 mph12 km/h | |
DayMostly cloudy and warm, with a high of 78°F26°C and morning low of 67°F19°C. Breezy from the NE at 8 mph13 km/h. NightPartly cloudy, with a low around 68°F20°C. Breezy from the NE at 7 mph12 km/h. 13% chance of drizzle throughout the night. | |||||||
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Coordinates: 42.3534°N, 88.0934°W·Elevation: 243m·Timezone: America/Chicago·Population: 18,461