Weather archive in Alton for the last week, weather in Alton for july 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
04:15	25.07
04:35	25.07
04:55	25.07
05:15	25.07
05:35	25.07
05:50	25.07
06:50	25.07
07:50	25.07
08:50	25.07
09:50	25.07
10:50	25.07
11:50	25.07
12:50	25.07
13:50	25.07
14:50	25.07
15:50	25.07
16:50	25.07
17:50	25.07
18:50	25.07
19:50	25.07
20:50	25.07
21:15	25.07
21:35	25.07
21:55	25.07
22:15	25.07
22:35	25.07
22:55	25.07
23:15	25.07
23:35	25.07
23:55	25.07
00:15	26.07
00:35	26.07
00:55	26.07
01:15	26.07
01:35	26.07
01:55	26.07
02:15	26.07
02:35	26.07
02:55	26.07
03:15	26.07
03:35	26.07
03:55	26.07
04:15	26.07
04:35	26.07
04:55	26.07
05:15	26.07
05:35	26.07
05:50	26.07

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)
calm	0	10 miles		8/8 2800 ft	74	71	90	88	88	very stuffily		29.44
calm	0	10 miles		10/10 2800 ft	74	71	89	86	86	very stuffily		29.45
calm	0	10 miles		10/10 2800 ft	74	71	89	86	86	very stuffily		29.45
calm	0	10 miles		10/10 3000 ft	74	71	90	86	86	very stuffily		29.46
calm	0	10 miles		8/8 3200 ft	74	72	92	86	86	very stuffily		29.46
		10 miles		5/5 3200 ft	75	72	89	88	88	very stuffily		29.46
		10 miles		8/8 6000 ft	77	72	83	90	90	very stuffily		29.47
		10 miles		8/0 7000 ft [Ac]	82	73	74	99	102	very stuffily		29.48
		10 miles		8/0 7000 ft [Ac]	82	73	74	99	108	very stuffily		29.48
		10 miles		clear	86	75	70	106	135	risk of overheating		29.47
SW	3 {2}	10 miles		5/5 2700 ft	88	75	66	109	124	risk of overheating		29.47
		10 miles		5/5 3600 ft	88	75	66	109	131	risk of overheating		29.45
E	6 {3}	10 miles		5/5 3600 ft	91	75	59	113	129	risk of overheating		29.43
calm	0	10 miles		8/8 3800 ft	90	75	63	111	120	very stuffily		29.42
		10 miles		5/5 3700 ft	91	77	63	117	135	risk of overheating		29.39
SE	6 {3}	10 miles		5/5 5000 ft [Ac]	91	77	63	117	126	risk of overheating		29.39
SE	6 {3}	10 miles		5/5 5000 ft [Ac]	90	77	67	115	120	risk of overheating		29.37
SE	7 {4}	10 miles		5/5 4800 ft	88	79	75	115	118	risk of overheating		29.39
S	6 {3}	10 miles		2/2 6500 ft	86	77	75	109	111	risk of overheating		29.39
SE	7 {4}	10 miles		clear	82	77	84	104	104	very stuffily		29.37
SE	6 {3}	10 miles		clear	82	77	84	104	104	very stuffily		29.40
S	5 {2}	10 miles		clear	83	76	79	104	104	very stuffily		29.41
S	7 {4}	10 miles		clear	83	76	79	104	104	very stuffily		29.41
S	6 {3}	10 miles		clear	83	76	80	104	104	very stuffily		29.41
S	6 {3}	10 miles		clear	82	76	81	102	102	very stuffily		29.41
S	7 {4}	10 miles		clear	82	76	80	102	102	very stuffily		29.41
S	6 {3}	10 miles		clear	82	76	80	102	102	very stuffily		29.41
S	6 {3}	10 miles		clear	82	75	81	102	102	very stuffily		29.41
S	3 {2}	10 miles		clear	82	75	82	100	100	very stuffily		29.42
calm	0	10 miles		clear	81	75	84	100	100	very stuffily		29.42	81	88
S	6 {3}	10 miles		clear	80	75	85	99	99	very stuffily		29.42
S	6 {3}	10 miles		clear	80	76	86	99	99	very stuffily		29.41
S	6 {3}	10 miles		clear	80	76	86	99	99	very stuffily		29.41
SW	3 {2}	10 miles		clear	79	75	89	97	97	very stuffily		29.40
S	5 {2}	10 miles		clear	79	76	88	99	99	very stuffily		29.40
S	5 {2}	10 miles		clear	79	76	88	99	99	very stuffily		29.39
S	6 {3}	10 miles		clear	79	76	89	97	97	very stuffily		29.39
S	5 {2}	10 miles		clear	79	75	90	97	97	very stuffily		29.39
S	3 {2}	10 miles		clear	78	75	90	97	97	very stuffily		29.37
S	6 {3}	10 miles		clear	78	75	90	95	95	very stuffily		29.37
calm	0	10 miles		clear	78	75	91	95	95	very stuffily		29.39
calm	0	10 miles		clear	78	75	90	95	95	very stuffily		29.39
calm	0	10 miles		clear	78	75	91	93	93	very stuffily		29.40
S	3 {2}	10 miles		clear	78	75	91	93	93	very stuffily		29.41
S	3 {2}	10 miles		clear	76	74	95	91	91	very stuffily		29.41
calm	0	10 miles		clear	76	75	95	91	91	very stuffily		29.41
SW	3 {2}	7 miles		clear	75	74	96	90	90	very stuffily		29.41
S	7 {4}	5 miles	mist	clear	75	75	100	91	91	very stuffily		29.41

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.

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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.