Skip Navigation Linkwww.weather.gov 
NOAA logo - Select to go to the NOAA homepage National Weather Service
 Headquarters Office   NWS logo
NWS Office of the Chief Information Officer/Telecommunication Operations Center
 
   

Current Weather Conditions:
Alton/St. Louis, St. Louis Regional Airport, IL, United States

NWS Point Forecast for KALN (KALN) 38-54N 090-03W

Conditions at

2026.08.10 0755 UTC
Wind from the S (170 degrees) at 5 MPH (4 KT)
Visibility 10 mile(s)
Sky conditions mostly cloudy
Temperature 77.9 F (25.5 C)
Dew Point 72.9 F (22.7 C)
Relative Humidity 84%
Pressure (altimeter) 29.96 in. Hg (1014 hPa)
ob KALN 100755Z AUTO 17004KT 10SM BKN120 26/23 A2996 RMK AO2 T02550227

Maximum and Minimum Temperatures

Maximum
Temperature
F (C)
Minimum
Temperature
F (C)
87.3 (30.7) 80.6 (27.0) In the 6 hours preceding Aug 10, 2026 - 01:55 AM EDT / 2026.08.10 0555 UTC
90.3 (32.4) 70.7 (21.5) In the 24 hours preceding Aug 10, 2026 - 01:55 AM EDT / 2026.08.10 0555 UTC

24 Hour Summary

Time
EDT (UTC)
Temperature
F (C)
Dew Point
F (C)
Pressure
Inches (hPa)
Wind
MPH
Weather
Latest 4 AM (8) Aug 10 77.9 (25.5) 72.9 (22.7) 29.96 (1014) S 5
3 AM (7) Aug 10 78.6 (25.9) 73.0 (22.8) 29.96 (1014) SSW 5
2 AM (6) Aug 10 79.7 (26.5) 73.2 (22.9) 29.96 (1014) S 7
1 AM (5) Aug 10 81.1 (27.3) 73.6 (23.1) 29.96 (1014) S 9
Midnight (4) Aug 10 81.9 (27.7) 74.7 (23.7) 29.97 (1014) S 9
11 PM (3) Aug 09 82.2 (27.9) 75.2 (24.0) 29.97 (1014) S 10
10 PM (2) Aug 09 82 (28) 75 (24) 29.93 (1013) S 9
9 PM (1) Aug 09 84 (29) 77 (25) 29.92 (1013) S 8
8 PM (0) Aug 09 87 (31) 75 (24) 29.91 (1012) S 12
7 PM (23) Aug 09 89 (32) 75 (24) 29.9 (1012) S 13
6 PM (22) Aug 09 89 (32) 77 (25) 29.91 (1012) S 14
5 PM (21) Aug 09 89 (32) 77 (25) 29.94 (1013) S 15
4 PM (20) Aug 09 89 (32) 77 (25) 29.96 (1014) S 8
3 PM (19) Aug 09 89 (32) 77 (25) 29.96 (1014) S 15
2 PM (18) Aug 09 87 (31) 75 (24) 29.99 (1015) S 15
1 PM (17) Aug 09 86 (30) 75 (24) 30.02 (1016) S 9
Noon (16) Aug 09 82 (28) 75 (24) 30.04 (1017) S 9
11 AM (15) Aug 09 80 (27) 73 (23) 30.05 (1017) SSW 10
10 AM (14) Aug 09 77 (25) 73 (23) 30.05 (1017) S 8
9 AM (13) Aug 09 73 (23) 71 (22) 30.04 (1017) S 7
8 AM (12) Aug 09 69 (21) 69 (21) 30.03 (1016) SSE 3
7 AM (11) Aug 09 71.6 (22.0) 70.5 (21.4) 30.03 (1016) Calm mist
6 AM (10) Aug 09 72.5 (22.5) 70.7 (21.5) 30.03 (1016) Calm
Oldest 5 AM (9) Aug 09 73.4 (23.0) 71.1 (21.7) 30.02 (1016) S 3
Time
EDT (UTC)
Temperature
F(C)
Dew Point
F(C)
Pressure
Inches(hPa)
Wind
(MPH)
Weather

The information presented here is taken from products produced by the U.S. National Weather Service and other national and international agencies




US Dept of Commerce
National Oceanic and Atmospheric Administration
National Weather Service
1325 East West Highway
Silver Spring, MD 20910
Page Author: NWS Internet Services Team
Disclaimer
Feedback
Privacy Notice
Credits