Alton, Illinois Weather Forecast

Local

Alton, IL, US

38.8906, -90.18428

Hourly Observations for September 21, 2017

		Temp ( °F °C )	Dew Point ( °F °C )	Humidity (%)	Winds ( mph kmh )	Pressure ( in mb )	Visibility ( mi km )
12:15 am 00:15	Clear	76 24.2	71 21.7	86 86	SSE 8 13	29.91 1013	10 16
12:35 am 00:35	Clear	76 24.3	71 21.7	85 85	SSE 6 9	29.91 1013	10 16
12:55 am 00:55	Clear	75 23.8	71 21.5	87 87	SSE 6 9	29.94 1014	10 16
1:15 am 01:15	Clear	74 23.5	71 21.5	89 89	Calm	29.94 1014	10 16
1:35 am 01:35	Clear	70 21.1	69 20.5	96 96	SE 6 9	29.94 1014	10 16
1:55 am 01:55	Clear	71 21.9	70 20.9	94 94	Calm	29.94 1014	10 16
2:15 am 02:15	Clear	72 22	70 21	94 94	Calm	29.94 1014	10 16
2:35 am 02:35	Clear	72 22.1	70 21.1	94 94	Calm	29.94 1014	10 16
2:55 am 02:55	Clear	72 22	70 21	94 94	Calm	29.94 1014	10 16
3:15 am 03:15	Clear	69 20.8	69 20.4	98 98	ESE 3 6	29.94 1014	10 16
3:35 am 03:35	Clear	70 21.3	70 20.9	98 98	Calm	29.94 1014	10 16
3:55 am 03:55	Clear	71 21.5	69 20.7	95 95	S 5 7	29.94 1014	10 16
4:15 am 04:15	Clear	71 21.5	69 20.7	95 95	S 5 7	29.94 1014	10 16
4:35 am 04:35	Clear	71 21.8	70 20.9	95 95	Calm	29.97 1015	10 16
4:55 am 04:55	Clear	69 20.4	68 20.2	99 99	SE 3 6	29.97 1015	10 16
5:15 am 05:15	Clear	68 20.1	68 20.1	100 100	Calm	29.97 1015	10 16
5:35 am 05:35	Clear	69 20.5	69 20.4	99 99	Calm	29.97 1015	10 16
5:55 am 05:55	Clear	67 19.2	67 19.2	100 100	ESE 3 6	29.97 1015	7 11
6:15 am 06:15	Clear	68 20	68 20	100 100	Calm	29.97 1015	7 11
6:35 am 06:35	Clear	68 19.8	68 19.8	100 100	Calm	29.97 1015	7 11
6:50 am 06:50	Partly Cloudy	66 19	66 19	100 100	S 6 9	29.97 1015	10 16
7:50 am 07:50	Mostly Cloudy	72 22	70 21	94 94	S 6 9	30.00 1016	10 16
8:50 am 08:50	Mostly Cloudy	73 23	72 22	94 94	SSE 6 9	30.00 1016	10 16
10:50 am 10:50	Cloudy	79 26	73 23	84 84	E 7 11	30.00 1016	10 16
11:50 am 11:50	Cloudy	82 28	73 23	74 74	ESE 6 9	30.00 1016	10 16
12:50 pm 12:50	Cloudy	84 29	73 23	70 70	SE 6 9	30.00 1016	10 16
1:50 pm 13:50	Cloudy	86 30	73 23	66 66	SE 8 13	29.97 1015	10 16
2:49 pm 14:49	Cloudy	88 31	73 23	62 62	S 8 13	29.97 1015	10 16
3:52 pm 15:52	Cloudy	88 31	73 23	62 62	SE 8 13	29.94 1014	10 16
4:48 pm 16:48	Cloudy	88 31	72 22	59 59	SSE 10 17	29.94 1014	10 16
5:45 pm 17:45	Mostly Cloudy	86 30	72 22	62 62	SSE 10 17	29.94 1014	10 16
6:50 pm 18:50	Mostly Cloudy	82 28	72 22	70 70	SSE 8 13	29.94 1014	10 16
7:47 pm 19:47	Mostly Cloudy	77 25	70 21	79 79	SE 8 13	29.94 1014	10 16
8:48 pm 20:48	Mostly Clear	75 24	70 21	83 83	ESE 8 13	29.97 1015	10 16
9:50 pm 21:50	Mostly Clear	72 22	70 21	94 94	ESE 6 9	29.97 1015	10 16
10:15 pm 22:15	Clear	73 22.6	69 20.5	88 88	SE 5 7	29.97 1015	10 16
10:35 pm 22:35	Clear	72 22.4	69 20.5	89 89	E 5 7	30.00 1016	10 16
10:55 pm 22:55	Clear	72 22	69 20.4	91 91	E 5 7	30.00 1016	10 16
11:15 pm 23:15	Clear	69 20.8	68 19.9	95 95	ESE 5 7	30.00 1016	10 16
11:35 pm 23:35	Clear	71 21.9	69 20.4	91 91	SE 5 7	30.00 1016	10 16
11:55 pm 23:55	Clear	73 22.5	69 20.5	89 89	SE 5 7	30.00 1016	10 16