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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

2026.05.19 1150 UTC
Wind from the SW (220 degrees) at 5 MPH (4 KT)
Visibility 10 mile(s)
Sky conditions partly cloudy
Temperature 64 F (18 C)
Dew Point 62 F (17 C)
Relative Humidity 93%
Pressure (altimeter) 29.99 in. Hg (1015 hPa)
ob KALN 191150Z 22004KT 10SM SCT070 18/17 A2999

Maximum and Minimum Temperatures

Maximum
Temperature
F (C)
Minimum
Temperature
F (C)
68.0 (20.0) 63.0 (17.2) In the 6 hours preceding May 19, 2026 - 01:55 AM EDT / 2026.05.19 0555 UTC
77.0 (25.0) 63.0 (17.2) In the 24 hours preceding May 19, 2026 - 01:55 AM EDT / 2026.05.19 0555 UTC

24 Hour Summary

Time
EDT (UTC)
Temperature
F (C)
Dew Point
F (C)
Pressure
Inches (hPa)
Wind
MPH
Weather
Latest 8 AM (12) May 19 64 (18) 62 (17) 29.99 (1015) SW 5
7 AM (11) May 19 66.4 (19.1) 63.7 (17.6) 29.99 (1015) SSW 3 light rain
6 AM (10) May 19 67.5 (19.7) 65.5 (18.6) 30 (1015) SW 6 light rain
5 AM (9) May 19 66.2 (19.0) 64.4 (18.0) 29.97 (1014) SE 3
4 AM (8) May 19 66.2 (19.0) 63.7 (17.6) 30 (1015) W 14
3 AM (7) May 19 66.2 (19.0) 63.1 (17.3) 29.96 (1014) SSE 14
2 AM (6) May 19 66.6 (19.2) 63.0 (17.2) 30 (1015) S 9
1 AM (5) May 19 68.0 (20.0) 62.6 (17.0) 29.98 (1015) SSE 13
Midnight (4) May 19 65.8 (18.8) 61.2 (16.2) 29.98 (1015) SE 10
11 PM (3) May 18 65.5 (18.6) 62.2 (16.8) 29.98 (1015) SSE 9
10 PM (2) May 18 64 (18) 62 (17) 29.92 (1013) SE 7
9 PM (1) May 18 68 (20) 62 (17) 29.93 (1013) W 8
8 PM (0) May 18 64 (18) 62 (17) 29.94 (1013) WNW 20 light rain
7 PM (23) May 18 66 (19) 62 (17) 30.03 (1016) SSW 13 light rain with thunder
6 PM (22) May 18 66 (19) 62 (17) 30 (1015) SSE 7 light rain with thunder
5 PM (21) May 18 66 (19) 62 (17) 30.03 (1016) WNW 7 light rain with thunder
4 PM (20) May 18 66 (19) 64 (18) 30.01 (1016) N 5 light rain with thunder
3 PM (19) May 18 66 (19) 64 (18) 30.02 (1016) N 6 light rain with thunder
2 PM (18) May 18 66 (19) 64 (18) 30.03 (1016) N 7 heavy rain with thunder
1 PM (17) May 18 66 (19) 64 (18) 29.98 (1015) E 3 rain with thunder
Noon (16) May 18 66 (19) 64 (18) 29.98 (1015) E 10 thunder
11 AM (15) May 18 66 (19) 64 (18) 29.98 (1015) N 10 heavy rain with thunder
10 AM (14) May 18 66 (19) 64 (18) 29.98 (1015) NW 14 heavy rain with thunder
Oldest 9 AM (13) May 18 75 (24) 68 (20) 29.9 (1012) S 15
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




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