Round Lake, IL Weather Forecast & Alerts

Current conditions, 5-day forecast, and active NWS weather alerts for Round Lake, IL.

Current Conditions — Round Lake, IL

BURLINGTON (KBUU)

Cloudy

53.1 F
Humidity:69%
Wind Speed: 9.2 G 19.7 mph
Barometer:29.87 in
Dewpoint:43.0 F
Visibility:10.00 mi
Precip:--
Heat Index:NA
Wind Chill:NA
Apr 28 2026, 09:15 AM CDT
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5-Day Forecast — Round Lake, IL

Tuesday

High 62 °F
Overcast
Tuesday
Night
Low 46 °F
Chance of Rain
Wednesday

High 57 °F
Slight Chance of Rain Showers
Wednesday
Night
Low 39 °F
Partly Cloudy
Thursday

High 57 °F
Mostly Cloudy
Thursday
Night
Low 35 °F
Partly Cloudy
Friday

High 51 °F
Mostly Cloudy
Friday
Night
Low 35 °F
Partly Cloudy
Saturday

High 55 °F
Mostly Cloudy

Detailed Forecast — Round Lake, IL

Tuesday
Overcast. High near 62°F. Wind 6 to 15 mph, with gusts as high as 28 mph.
Tuesday Night
Chance of Rain. Low around 46°F. Wind 6 to 9 mph, with gusts as high as 15 mph.
Wednesday
Slight Chance of Rain Showers. High near 57°F. Wind 7 to 10 mph, with gusts as high as 15 mph.
Wednesday Night
Partly Cloudy. Low around 39°F. Wind 5 to 6 mph, with gusts as high as 6 mph.
Thursday
Mostly Cloudy. High near 57°F. Wind 7 to 10 mph, with gusts as high as 16 mph.
Thursday Night
Partly Cloudy. Low around 35°F. Wind around 3 mph, with gusts as high as 7 mph.
Friday
Mostly Cloudy. High near 51°F. Wind 5 to 9 mph, with gusts as high as 15 mph.
Friday Night
Partly Cloudy. Low around 35°F. Wind around 1 mph, with gusts as high as 3 mph.
Saturday
Mostly Cloudy. High near 55°F. Wind 3 to 7 mph, with gusts as high as 12 mph.
Saturday Night
Mostly Clear. Low around 39°F. Wind around 3 mph, with gusts as high as 8 mph.
Sunday
Partly Sunny. High near 64°F. Wind 7 to 12 mph, with gusts as high as 22 mph.
Sunday Night
Chance of Showers. Low around 44°F. Wind around 3 mph, with gusts as high as 8 mph.
Monday
Slight Chance of Rain Showers. High near 64°F. Wind 6 to 8 mph, with gusts as high as 15 mph.
IL Radar
Current Radar • IL
Day 1 Outlook • April 28, 2026

Observation History — Round Lake, IL

Time Wind
(mph)		 Vis
(mi)		 Weather Precip (in) Temperature (F) Relative
Humidity		 Wind
Chill
(F)		 Heat
Index
(F)		 Pressure
Air Dwpt altimeter
(in)		 sea level
(mb)
09:15 AM CDT 9.2 G 19.7 10.00 Cloudy -- 53.1 43.0 69% NA NA 29.87 1011.5
08:55 AM CDT W 10.3 G 16.1 10.00 Cloudy -- 52.3 43.0 70% NA NA 29.86 1011.2
08:35 AM CDT W 9.2 10.00 Cloudy -- 52.7 43.7 71% NA NA 29.85 1010.8
08:15 AM CDT W 10.3 G 20.8 10.00 Cloudy -- 51.8 42.1 69% NA NA 29.83 1010.2
07:55 AM CDT 10.3 G 17.2 10.00 Cloudy -- 51.8 42.4 70% NA NA 29.82 1009.8
07:35 AM CDT 12.8 G 17.2 10.00 Cloudy -- 51.1 43.7 76% NA NA 29.81 1009.2
07:15 AM CDT W 11.4 G 19.7 10.00 Cloudy -- 50.9 43.7 76% NA NA 29.78 1008.5
06:55 AM CDT W 9.2 G 18.3 10.00 Cloudy -- 50.9 43.7 76% NA NA 29.77 1008.1
06:35 AM CDT W 9.2 G 17.2 10.00 Cloudy -- 50.9 43.9 77% NA NA 29.76 1007.8
06:15 AM CDT W 15.0 G 25.3 10.00 Cloudy -- 50.9 44.2 78% NA NA 29.74 1007.1
05:55 AM CDT W 13.9 G 23.0 10.00 Cloudy -- 50.9 45.0 80% NA NA 29.73 1006.8
05:35 AM CDT W 11.4 G 21.9 10.00 Cloudy -- 51.1 45.5 81% NA NA 29.72 1006.4
04:55 AM CDT W 10.3 G 19.7 10.00 Cloudy -- 51.3 46.2 83% NA NA 29.70 1005.8
04:35 AM CDT W 13.9 G 21.9 10.00 Cloudy -- 51.6 46.0 81% NA NA 29.69 1005.4
04:10 AM CDT W 13.9 G 21.9 10.00 Cloudy -- 52.0 46.4 81% NA NA 29.69 1005.4
03:55 AM CDT W 15.0 G 23.0 10.00 Cloudy -- 52.2 47.5 84% NA NA 29.69 1005.4
03:35 AM CDT W 10.3 G 20.8 10.00 Cloudy -- 52.7 47.7 83% NA NA 29.68 1005.1
03:15 AM CDT W 13.9 G 25.3 10.00 Cloudy -- 53.4 47.7 81% NA NA 29.68 1004.8
02:35 AM CDT W 17.2 G 24.2 10.00 Cloudy -- 55.0 48.4 78% NA NA 29.65 1004.1
01:55 AM CDT G 25.3 10.00 Mostly Cloudy -- 56.3 50.0 79% NA NA 29.64 1003.7
01:35 AM CDT W 12.8 G 24.2 10.00 Cloudy -- 57.2 50.9 79% NA NA 29.64 1003.7
12:55 AM CDT W 13.9 G 20.8 10.00 Cloudy -- 60.4 55.4 83% NA NA 29.63 1003.4
12:35 AM CDT 11.4 G 21.9 10.00 Cloudy -- 60.8 56.5 86% NA NA 29.62 1003.1
12:15 AM CDT SW 12.8 G 19.7 10.00 Cloudy -- 61.7 57.4 86% NA NA 29.61 1002.7

Regional Weather Observation

BURLINGTON (KBUU)

Cloudy
53.1 F

EAST TROY (K57C)

Cloudy
51.3 F

KENOSHA (KENW)

Cloudy
53.6 F

WAUKEGAN (KUGN)

Cloudy
53.6 F

RACINE (KRAC)

Mostly Cloudy
55.4 F

MILWAUKEE (KMKE)

Mostly Cloudy
53.6 F
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