Weather archive in Alton for the last week, weather in Alton for april 2025 year

Weather & Climate
Weather archive
USA
Illinois
St. Louis Regional Airport

WEATHER IN Alton

Weather forecast in Alton
Climate monitor in Alton

Time and date
16:50	31.03
17:50	31.03
18:50	31.03
19:50	31.03
20:50	31.03
21:15	31.03
21:35	31.03
21:55	31.03
22:15	31.03
22:35	31.03
22:55	31.03
23:15	31.03
23:35	31.03
23:55	31.03
00:15	01.04
00:35	01.04
00:55	01.04
01:15	01.04
01:35	01.04
01:55	01.04
02:15	01.04
02:35	01.04
02:55	01.04
03:15	01.04
03:35	01.04
03:55	01.04
04:15	01.04
04:35	01.04
04:55	01.04
05:15	01.04
05:35	01.04
05:50	01.04
06:50	01.04
07:50	01.04
08:50	01.04
09:50	01.04
10:50	01.04
11:50	01.04
12:50	01.04
13:50	01.04
14:50	01.04
15:50	01.04
16:50	01.04
17:50	01.04
18:50	01.04
19:15	01.04
19:50	01.04
21:15	01.04

Wind (dir.,mph)		Visibility	Phenomena	Clouds	Т (F)	Тd (F)	f (%)	Тe (F)	Тes (F)	Comfort	P (in)	Po (in)	Тmin (F)	Tmax (F)	R (in)	R24 (in)	S (in)
N	11 {6}	10 miles		8/8 4300 ft	52	34	50	48	48			29.43
N	6 {3}	10 miles		5/0 8500 ft [Ac]	50	32	50	48	48			29.43
NW	3 {2}	10 miles		5/5 4800 ft	48	36	61	46	46			29.43
		10 miles		clear	46	34	61	46	46			29.46
calm	0	10 miles		clear	45	36	70	43	43			29.46
calm	0	10 miles		clear	42	36	79	41	41			29.46
calm	0	10 miles		clear	42	38	83	41	41			29.47
calm	0	10 miles		clear	41	39	91	39	39			29.47
calm	0	10 miles		clear	40	35	82	39	39			29.48
calm	0	10 miles		clear	41	37	83	39	39			29.47
calm	0	10 miles		clear	39	36	87	37	37			29.48
calm	0	10 miles		clear	39	37	91	37	37			29.48
calm	0	10 miles		clear	39	37	90	37	37			29.48
calm	0	10 miles		clear	39	37	90	37	37			29.48	39	51
calm	0	10 miles		clear	37	36	94	36	36			29.47
calm	0	10 miles		clear	38	37	96	36	36			29.47
calm	0	10 miles		clear	38	37	95	36	36			29.47
calm	0	10 miles		clear	37	36	96	34	34			29.47
calm	0	10 miles		clear	37	36	97	34	34			29.47
calm	0	10 miles		clear	35	35	99	32	32			29.47
calm	0	10 miles		clear	36	35	99	34	34			29.47
calm	0	10 miles		clear	36	35	98	34	34			29.47
calm	0	10 miles		clear	35	35	99	32	32			29.47
calm	0	10 miles		clear	34	34	99	32	32			29.46
calm	0	10 miles		clear	34	33	99	32	32			29.46
E	5 {2}	10 miles		clear	34	34	99	28	28			29.46
E	6 {3}	10 miles		clear	36	35	98	28	28			29.45
E	5 {2}	10 miles		clear	35	35	99	28	28			29.46
E	5 {2}	10 miles		clear	36	35	99	28	28			29.47
E	6 {3}	10 miles		clear	36	36	99	28	28			29.47
E	6 {3}	10 miles		clear	36	36	99	28	28			29.48
E	9 {5}	10 miles		clear	37	36	93	28	28			29.48
SE	14 {7}	10 miles		clear	39	39	100	28	28			29.50
SE	16 {8}	10 miles		2/2 4000 ft	43	39	87	34	34			29.50
SE	16 {8}	10 miles		5/5 1700 ft	45	37	76	36	37			29.48
SE	15 {8}	10 miles		5/5 1900 ft	46	37	71	39	41			29.48
SE	16 {8}	10 miles		5/5 2500 ft	48	34	57	41	45			29.45
SE	13 {6}	10 miles		clear	52	36	54	46	59			29.44
SE	19 {10}	10 miles		clear	54	36	50	48	52			29.41
SE	22 {11}	10 miles		clear	55	36	47	50	52			29.36
SE	21 {11}	10 miles		clear	57	34	41	54	55			29.32
SE	21 {11}	10 miles		clear	55	34	44	50	52			29.27
E	13 {6}	10 miles		clear	55	37	51	52	55			29.25
E	14 {7}	10 miles		5/0 12000 ft [Ac]	55	39	54	52	52			29.19
E	11 {6}	10 miles		8/0 9000 ft [Ac]	54	39	58	50	50			29.21
E	14 {7}	10 miles	thunderstorm	8/0 8000 ft [Ac]	54	39	58	48	48			29.20
E	14 {7}	10 miles		8/0 8000 ft [Ac]	54	39	58	48	48			29.20
E	14 {7}	10 miles		10/10 5000 ft	55	41	60	50	50			29.18

Weather station location St. Louis Regional Airport: latitude 38.9000 longitude -90.0500 Height above sea level 166 m.

The archive shows weather in Alton for the last 1-2 days. The actual weather information in the database is updated hourly! The entire month and previous months archive data can be obtained by selecting the date range of interest from the drop-down list and pressing the "Enter!".

Attention! The METAR weather archive in database for stations not included in the climate monitor is stored for no more than 60 days. It makes no sense to try to choose an earlier date.

Attention! The time in the tables is local time (not including daylight saving time). To obtain Universal Time, subtract the correction, which is equal to -6 h.

See also the weather archive in nearby cities and at nearby weather stations:

Partners of our site:

Column explanations:

Wind - indicated wind speed in m/s - average for 10 minutes, gusts within and between terms (in curly brackets) and direction from which the wind blows: N - North, NE - North-East, E - East, SE - South-East , S - South, SW - South-West, W - West, NW - North-West.
Visibility - horizontal range of visibility in meters or kilometers. When visibility is from 1 to 10 km in the absence of precipitation, haze is usually observed, and when visibility is reduced to 1 km or less, fog is observed. In dry weather, visibility may be reduced by smoke, dust, or haze.
Phenomena - atmospheric phenomena observed during the period of observations.
Clouds - are through slash total and lower clouds in points, and the height of the lower border of the cloud in meters; square brackets contain cloud forms: Ci - Cirrus, Cs - Cirrostratus, Cc - Cirrocumulus, Ac - Altocumulus, As - Altostratus, Sc - Stratocumulus, Ns - Nimbostratus, Cu - Cumulus, Cb - Cumulonimbus. For more information about cloud classification, see the cloud Atlas (PDF).
T - Air temperature - temperature measured at a height of 2 m above the ground.
Td - Dew point temperature - the temperature at which the water vapor contained in the air reaches saturation.
f - Relative humidity measured at a height of 2 m above the ground.
Te - Effective temperature is the temperature felt by a seasonally dressed person in the shade. Characteristic of stuffy weather. The calculation takes into account the effects of air humidity and wind speed on a person's heat sensation.
Tes - Effective sun temperature - The temperature a person feels, corrected for solar heating. Characteristic of sweltering weather. Depends on the height of the sun above the horizon, cloud cover, and wind speed. At night, overcast, and with winds of 12 m/s or more, the correction is zero.
P - Atmospheric pressure - atmospheric pressure reduced to sea level.
Po - Atmospheric pressure - atmospheric pressure measured at the station level.
Tmin - Minimum temperature - minimum air temperature at a height of 2 m above the ground.
Tmax - Maximum temperature - maximum air temperature at a height of 2 m above the ground.
R - Precipitation - The amount of precipitation over a period of time, mm. When you hover over the number, the time period for which the specified amount of precipitation has fallen.
R24 - Precipitation 24h - The amount of precipitation in 24 hours, mm.
S - Snow cover - The height of the snow cover. When you hover the mouse over the number - the state of the snow cover and the degree of coverage in points.