Alton, Illinois Weather Forecast

Local

Alton, IL, US

38.8906, -90.18428

Hourly Observations for April 21, 2023

		Temp ( °F °C )	Dew Point ( °F °C )	Humidity (%)	Winds ( mph kmh )	Pressure ( in mb )	Visibility ( mi km )
12:15 am 00:15	Cloudy	55 12.8	43 6.2	64 64	NW 5 7	30.04 1017	10 16
12:35 am 00:35	Cloudy	55 12.6	43 6.1	65 65	Calm	30.05 1018	10 16
12:55 am 00:55	Cloudy	55 12.5	43 6.2	65 65	Calm	30.05 1018	10 16
1:15 am 01:15	Cloudy	54 12.2	43 6.2	67 67	Calm	30.04 1017	10 16
1:35 am 01:35	Cloudy	53 11.9	43 6.3	69 69	Calm	30.05 1017	10 16
1:55 am 01:55	Mostly Cloudy	53 11.6	44 6.4	70 70	Calm	30.03 1017	10 16
2:15 am 02:15	Mostly Cloudy	53 11.6	43 6.1	69 69	Calm	30.05 1017	10 16
2:35 am 02:35	Cloudy	53 11.5	43 6.2	70 70	Calm	30.03 1017	10 16
2:55 am 02:55	Cloudy	53 11.5	43 6	69 69	Calm	30.03 1017	10 16
3:15 am 03:15	Cloudy	52 11.3	43 5.9	69 69	Calm	30.03 1017	10 16
3:35 am 03:35	Cloudy	52 11	42 5.8	70 70	Calm	30.01 1016	10 16
3:55 am 03:55	Partly Cloudy	51 10.8	42 5.5	70 70	Calm	30.04 1017	10 16
4:15 am 04:15	Clear	51 10.5	42 5.5	71 71	Calm	30.04 1017	10 16
4:35 am 04:35	Clear	51 10.3	42 5.4	72 72	Calm	30.03 1017	10 16
4:55 am 04:55	Clear	50 10	42 5.7	75 75	Calm	30.02 1016	10 16
5:15 am 05:15	Clear	49 9.5	43 6	79 79	Calm	30.02 1017	10 16
5:35 am 05:35	Clear	49 9.5	42 5.8	78 78	Calm	30.02 1017	10 16
5:55 am 05:55	Clear	47 8.4	44 6.5	88 88	Calm	30.02 1017	10 16
6:15 am 06:15	Sunny	47 8.4	44 6.4	87 87	Calm	30.03 1017	10 16
6:35 am 06:35	Sunny	48 8.7	44 6.7	87 87	Calm	30.04 1017	10 16
6:50 am 06:50	Sunny	48 9	45 7	87 87	WNW 5 7	30.04 1017	10 16
7:50 am 07:50	Sunny	50 10	45 7	82 82	N 5 7	30.03 1017	10 16
8:50 am 08:50	Sunny	50 10	45 7	82 82	N 5 7	30.02 1016	10 16
9:50 am 09:50	Sunny	54 12	45 7	71 71	SE 5 7	30.01 1016	10 16
10:50 am 10:50	Sunny	57 14	39 4	51 51	SE 6 9	30.02 1017	10 16
11:50 am 11:50	Sunny	61 16	37 3	42 42	WSW 5 7	30.00 1016	10 16
12:50 pm 12:50	Partly Cloudy	61 16	41 5	48 48	WSW 6 9	29.98 1015	10 16
1:50 pm 13:50	Partly Cloudy	63 17	36 2	36 36	W 10 17	29.95 1014	10 16
2:50 pm 14:50	Partly Cloudy	63 17	37 3	39 39	WSW 10 17	29.92 1013	10 16
3:50 pm 15:50	Partly Cloudy	64 18	36 2	34 34	W 14 22	29.90 1013	10 16
4:50 pm 16:50	Partly Cloudy	64 18	32 0	30 30	WNW 16 26	29.87 1012	10 16
5:50 pm 17:50	Partly Cloudy	63 17	32 0	32 32	WNW 9 15	29.87 1012	10 16
6:50 pm 18:50	Sunny	63 17	30 -1	29 29	NW 12 19	29.87 1012	10 16
7:50 pm 19:50	Clear	61 16	30 -1	31 31	NW 12 19	29.87 1011	10 16
8:50 pm 20:50	Clear	57 14	30 -1	36 36	WNW 9 15	29.90 1013	10 16
9:50 pm 21:50	Clear	55 13	30 -1	38 38	NW 13 20	29.94 1014	10 16
10:15 pm 22:15	Mostly Cloudy	54 12.1	32 -0.2	43 43	Calm	29.96 1015	10 16
10:35 pm 22:35	Cloudy	53 11.8	32 0	44 44	Calm	29.96 1015	10 16
10:55 pm 22:55	Cloudy	53 11.6	32 -0.1	44 44	NW 3 6	29.96 1015	10 16
11:15 pm 23:15	Cloudy	52 11.1	32 0.2	47 47	WNW 6 9	29.96 1015	10 16
11:35 pm 23:35	Mostly Cloudy	52 11	31 -0.5	45 45	WNW 7 11	29.96 1015	10 16
11:55 pm 23:55	Partly Cloudy	51 10.3	31 -0.3	48 48	Calm	29.97 1015	10 16