Alton, Illinois Weather Forecast

Local

Alton, IL, US

38.8906, -90.18428

Hourly Observations for October 21, 2023

		Temp ( °F °C )	Dew Point ( °F °C )	Humidity (%)	Winds ( mph kmh )	Pressure ( in mb )	Visibility ( mi km )
12:15 am 00:15	Clear	45 7	43 6.3	95 95	Calm	29.84 1011	10 16
12:35 am 00:35	Clear	46 7.6	45 7.3	98 98	Calm	29.84 1011	10 16
12:55 am 00:55	Clear	45 7.1	44 6.9	99 99	Calm	29.84 1011	10 16
1:15 am 01:15	Clear	45 7	44 6.8	99 99	Calm	29.82 1010	10 16
1:35 am 01:35	Clear	45 7.3	45 7.1	99 99	Calm	29.82 1010	10 16
1:55 am 01:55	Clear	46 7.5	44 6.9	96 96	Calm	29.81 1010	10 16
2:15 am 02:15	Clear	45 7.1	44 6.9	99 99	Calm	29.82 1010	10 16
2:35 am 02:35	Clear	46 7.9	46 7.6	98 98	Calm	29.81 1010	10 16
2:55 am 02:55	Clear	46 7.8	46 7.6	99 99	Calm	29.80 1009	10 16
3:15 am 03:15	Clear	47 8.3	45 7.1	92 92	Calm	29.81 1010	10 16
3:35 am 03:35	Clear	50 10.1	46 8	87 87	Calm	29.80 1009	10 16
3:55 am 03:55	Clear	49 9.5	46 7.8	89 89	Calm	29.80 1009	10 16
4:15 am 04:15	Clear	48 9.1	45 7.2	88 88	Calm	29.79 1009	10 16
4:35 am 04:35	Clear	49 9.3	45 7.3	87 87	SE 5 7	29.78 1008	10 16
4:55 am 04:55	Clear	49 9.7	46 7.6	87 87	Calm	29.78 1008	10 16
5:15 am 05:15	Clear	50 10.1	46 7.5	84 84	Calm	29.78 1008	10 16
5:35 am 05:35	Clear	51 10.4	45 7.3	81 81	Calm	29.77 1008	10 16
5:55 am 05:55	Clear	49 9.2	44 6.5	83 83	SE 3 6	29.77 1008	10 16
6:15 am 06:15	Clear	47 8.6	43 6.3	85 85	Calm	29.76 1008	10 16
6:35 am 06:35	Clear	48 8.9	45 7.1	88 88	Calm	29.76 1008	10 16
6:50 am 06:50	Clear	48 9	45 7	87 87	S 8 13	29.76 1008	10 16
7:50 am 07:50	Sunny	52 11	45 7	76 76	SSW 13 20	29.74 1007	10 16
8:50 am 08:50	Sunny	57 14	46 8	67 67	WSW 8 13	29.74 1007	10 16
9:50 am 09:50	Sunny	61 16	48 9	63 63	W 10 17	29.73 1007	10 16
10:50 am 10:50	Sunny	66 19	48 9	52 52	W 10 17	29.73 1007	10 16
11:50 am 11:50	Sunny	72 22	43 6	35 35	WNW 15 24	29.74 1007	10 16
12:50 pm 12:50	Sunny	75 24	43 6	31 31	NW 16 26	29.74 1007	10 16
1:50 pm 13:50	Sunny	75 24	39 4	27 27	WNW 18 30	29.73 1007	10 16
2:50 pm 14:50	Sunny	75 24	32 0	20 20	NW 21 33	29.75 1007	10 16
3:50 pm 15:50	Sunny	75 24	32 0	20 20	NW 23 37	29.76 1008	10 16
4:50 pm 16:50	Sunny	73 23	34 1	23 23	WNW 23 37	29.78 1009	10 16
5:50 pm 17:50	Sunny	70 21	34 1	26 26	NW 20 31	29.80 1009	10 16
6:50 pm 18:50	Clear	66 19	34 1	30 30	NW 10 17	29.84 1010	10 16
7:50 pm 19:50	Clear	61 16	36 2	39 39	NNW 6 9	29.88 1012	10 16
8:50 pm 20:50	Clear	59 15	36 2	41 41	NW 8 13	29.90 1012	10 16
9:50 pm 21:50	Clear	57 14	37 3	47 47	NW 8 13	29.92 1013	10 16
10:15 pm 22:15	Clear	58 14.7	37 2.8	45 45	Calm	29.93 1013	10 16
10:35 pm 22:35	Clear	59 14.9	37 2.8	44 44	Calm	29.94 1014	10 16
10:55 pm 22:55	Clear	58 14.6	37 2.9	45 45	Calm	29.94 1014	10 16
11:15 pm 23:15	Clear	56 13.5	37 3	49 49	Calm	29.95 1014	10 16
11:35 pm 23:35	Clear	54 12.4	38 3.2	53 53	Calm	29.96 1015	10 16
11:55 pm 23:55	Clear	53 11.7	38 3.2	56 56	Calm	29.96 1015	10 16