Port Byron, IL Current Weather Conditions

Current weather observations and 72-hour history for Port Byron, IL. • View 5-Day Forecast ›

▼Current Conditions — Port Byron, IL

CLINTON MUNI (KCWI)

Cloudy

48.2 F

Humidity:	53%
Wind Speed:	4.6 mph
Barometer:	30.06 in
Dewpoint:	32.0 F
Visibility:	10.00 mi
Precip:	--
Heat Index:	NA
Wind Chill:	46.4 F

May 1 2026, 11:10 AM CDT

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▼Hourly Observation History — Port Byron, IL

Time	Wind (mph)	Vis (mi)	Weather	Precip (in)	Temperature (F)		Relative Humidity	Wind Chill (F)	Heat Index (F)	Pressure
Time	Wind (mph)	Vis (mi)	Weather	Precip (in)	Air	Dwpt	Relative Humidity	Wind Chill (F)	Heat Index (F)	altimeter (in)	sea level (mb)
11:10 AM CDT	4.6	10.00	Cloudy	--	48.2	32.0	53%	46.4	NA	30.06	1017.9
10:50 AM CDT	NE 4.6	10.00	Cloudy	--	48.2	33.8	57%	46.4	NA	30.06	1017.9
10:35 AM CDT	3.4	10.00	Cloudy	--	48.2	33.8	57%	47.3	NA	30.06	1017.9
10:30 AM CDT	SW 3.4	10.00	Mostly Cloudy	--	48.2	33.8	57%	47.3	NA	30.06	1017.9
10:20 AM CDT	W 3.4	10.00	Mostly Cloudy	--	48.2	33.8	57%	47.3	NA	30.06	1017.9
10:10 AM CDT	W 3.4	10.00	Mostly Cloudy	--	46.4	33.8	61%	45.1	NA	30.06	1017.9
10:00 AM CDT	0.0	10.00	Cloudy	--	46.4	33.8	61%	NA	NA	30.06	1017.9
09:50 AM CDT	0.0	10.00	Cloudy	--	46.4	35.6	66%	NA	NA	30.06	1017.9
09:45 AM CDT	0.0	10.00	Cloudy	--	46.4	33.8	61%	NA	NA	30.06	1017.9
09:35 AM CDT	3.4	10.00	Cloudy	--	46.4	35.6	66%	45.1	NA	30.06	1017.9
09:30 AM CDT	0.0	10.00	Cloudy	--	44.6	35.6	70%	NA	NA	30.06	1017.9
09:20 AM CDT	0.0	10.00	Mostly Cloudy	--	44.6	33.8	66%	NA	NA	30.06	1017.9
09:10 AM CDT	W 3.4	10.00	Cloudy	--	44.6	35.6	70%	43.2	NA	30.06	1017.9
09:05 AM CDT	W 3.4	10.00	Mostly Cloudy	--	44.6	35.6	70%	43.2	NA	30.06	1017.9
08:50 AM CDT	W 3.4	10.00	Cloudy	--	42.8	33.8	70%	41.0	NA	30.06	1017.9
08:45 AM CDT	3.4	10.00	Cloudy	--	42.8	35.6	76%	41.0	NA	30.06	1017.9
08:30 AM CDT	0.0	10.00	Cloudy	--	42.8	35.6	76%	NA	NA	30.05	1017.6
08:20 AM CDT	4.6	10.00	Cloudy	--	42.8	33.8	70%	40.1	NA	30.05	1017.6
08:10 AM CDT	NW 4.6	10.00	Mostly Cloudy	--	42.8	33.8	70%	40.1	NA	30.05	1017.6
08:05 AM CDT	4.6	10.00	Mostly Cloudy	--	42.8	33.8	70%	40.1	NA	30.05	1017.6
08:00 AM CDT	4.6	10.00	Mostly Cloudy	--	41.0	33.8	75%	37.9	NA	30.05	1017.6
07:45 AM CDT	6.9	10.00	Cloudy	--	39.2	35.6	87%	34.2	NA	30.05	1017.6
07:40 AM CDT	NW 5.7	10.00	Cloudy	--	39.2	35.6	87%	35.1	NA	30.05	1017.6
07:35 AM CDT	NW 4.6	10.00	Cloudy	--	39.2	35.6	87%	35.8	NA	30.05	1017.6
07:30 AM CDT	5.7	10.00	Cloudy	--	39.2	35.6	87%	35.1	NA	30.05	1017.6
07:20 AM CDT	NW 3.4	10.00	Cloudy	--	41.0	33.8	75%	39.0	NA	30.05	1017.6
07:05 AM CDT	0.0	10.00	Cloudy	--	41.0	33.8	75%	NA	NA	30.04	1017.3
07:00 AM CDT	3.4	10.00	Cloudy	--	39.2	33.8	81%	37.0	NA	30.04	1017.3
06:50 AM CDT	5.7	10.00	Mostly Cloudy	--	39.2	33.8	81%	35.1	NA	30.03	1016.9
06:45 AM CDT	6.9	10.00	Partly Cloudy	--	39.2	33.8	81%	34.2	NA	30.03	1016.9
06:35 AM CDT	8.1	10.00	Clear	--	37.4	32.0	81%	31.5	NA	30.03	1016.9
06:20 AM CDT	9.2	10.00	Clear	--	35.6	30.2	81%	28.6	NA	30.03	1016.9
06:15 AM CDT	9.2	10.00	Clear	--	35.6	30.2	81%	28.6	NA	30.03	1016.9
06:10 AM CDT	10.4	10.00	Clear	--	35.6	30.2	81%	28.0	NA	30.03	1016.9
06:05 AM CDT	10.4	10.00	Clear	--	33.8	30.2	86%	25.7	NA	30.03	1016.9
05:50 AM CDT		10.00	Clear	--	33.8	30.2	86%	NA	NA	30.03	1016.9
05:45 AM CDT	10.4	10.00	Clear	--	33.8	30.2	86%	25.7	NA	30.03	1016.9
05:35 AM CDT		10.00	Clear	--	33.8	30.2	86%	NA	NA	30.03	1016.9
05:20 AM CDT	9.2	10.00	Clear	--	35.6	30.2	81%	28.6	NA	30.03	1016.9
05:15 AM CDT	9.2	10.00	Clear	--	35.6	30.2	81%	28.6	NA	30.03	1016.9
05:10 AM CDT	9.2	10.00	Clear	--	35.6	30.2	81%	28.6	NA	30.03	1016.9
05:00 AM CDT	9.2	10.00	Clear	--	35.6	32.0	87%	28.6	NA	30.02	1016.6
04:50 AM CDT	8.1	10.00	Clear	--	35.6	32.0	87%	29.1	NA	30.02	1016.6
04:40 AM CDT	9.2	10.00	Clear	--	35.6	32.0	87%	28.6	NA	30.02	1016.6
04:35 AM CDT	9.2	10.00	Clear	--	35.6	32.0	87%	28.6	NA	30.02	1016.6
04:20 AM CDT	NW 10.4	10.00	Clear	--	37.4	33.8	87%	30.2	NA	30.02	1016.6
04:15 AM CDT	NW 11.5	10.00	Clear	--	37.4	33.8	87%	29.8	NA	30.02	1016.6
04:05 AM CDT	10.4	10.00	Clear	--	35.6	33.8	93%	28.0	NA	30.02	1016.6
04:00 AM CDT	10.4	10.00	Clear	--	35.6	33.8	93%	28.0	NA	30.01	1016.3
03:50 AM CDT	9.2	10.00	Clear	--	37.4	33.8	87%	30.7	NA	30.01	1016.3
03:40 AM CDT	9.2	10.00	Clear	--	37.4	33.8	87%	30.7	NA	30.01	1016.3
03:35 AM CDT	9.2	10.00	Clear	--	37.4	33.8	87%	30.7	NA	30.01	1016.3
03:25 AM CDT	10.4	10.00	Clear	--	37.4	33.8	87%	30.2	NA	30.01	1016.3
03:20 AM CDT	10.4	10.00	Clear	--	37.4	33.8	87%	30.2	NA	30.01	1016.3
03:10 AM CDT	9.2	10.00	Mostly Clear	--	37.4	33.8	87%	30.7	NA	30.01	1016.3
03:05 AM CDT	10.4	10.00	Mostly Clear	--	37.4	33.8	87%	30.2	NA	30.00	1015.9
03:00 AM CDT	9.2	10.00	Mostly Clear	--	37.4	33.8	87%	30.7	NA	30.00	1015.9
02:50 AM CDT	9.2	10.00	Mostly Clear	--	37.4	33.8	87%	30.7	NA	30.00	1015.9
02:40 AM CDT	8.1	10.00	Mostly Clear	--	39.2	33.8	81%	33.6	NA	30.00	1015.9
02:30 AM CDT	9.2	10.00	Mostly Clear	--	39.2	35.6	87%	33.1	NA	30.01	1016.3
02:20 AM CDT	8.1	10.00	Partly Cloudy	--	39.2	35.6	87%	33.6	NA	30.01	1016.3
02:15 AM CDT	9.2	10.00	Mostly Clear	--	39.2	35.6	87%	33.1	NA	30.01	1016.3
02:10 AM CDT	9.2	10.00	Clear	--	39.2	35.6	87%	33.1	NA	30.01	1016.3
02:05 AM CDT	9.2	10.00	Clear	--	39.2	35.6	87%	33.1	NA	30.01	1016.3
02:00 AM CDT	8.1	10.00	Clear	--	39.2	35.6	87%	33.6	NA	30.00	1015.9
01:50 AM CDT	9.2	10.00	Clear	--	41.0	35.6	81%	35.2	NA	30.00	1015.9
01:40 AM CDT	10.4	10.00	Clear	--	41.0	35.6	81%	34.7	NA	30.00	1015.9
01:35 AM CDT	10.4	10.00	Clear	--	41.0	35.6	81%	34.7	NA	30.00	1015.9
01:25 AM CDT	10.4	10.00	Mostly Clear	--	39.2	35.6	87%	32.5	NA	30.00	1015.9
01:20 AM CDT	10.4	10.00	Partly Cloudy	--	39.2	35.6	87%	32.5	NA	30.00	1015.9
01:15 AM CDT	9.2	10.00	Partly Cloudy	--	41.0	33.8	75%	35.2	NA	30.00	1015.9
01:10 AM CDT	8.1	10.00	Mostly Cloudy	--	42.8	33.8	70%	37.9	NA	30.00	1015.9