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Current Weather Conditions:
ST LOUIS DOWNTOWN AIRPORT, IL, United States

NWS Point Forecast for KCPS (KCPS) 38-34N 090-09W 126M

Conditions at

2026.09.19 2053 UTC
Wind Calm
Visibility 10 mile(s)
Sky conditions clear
Temperature 96.1 F (35.6 C)
Heat index 99.3 F (37.4 C)
Dew Point 66.0 F (18.9 C)
Relative Humidity 37%
Pressure (altimeter) 29.89 in. Hg (1012 hPa)
Pressure tendency 0.07 inches (2.3 hPa) lower than three hours ago
ob KCPS 192053Z 00000KT 10SM CLR 36/19 A2989 RMK AO2 SLP117 T03560189 56023

Maximum and Minimum Temperatures

Maximum
Temperature
F (C)
Minimum
Temperature
F (C)
95.0 (35.0) 71.1 (21.7) In the 6 hours preceding Sep 19, 2026 - 01:53 PM EDT / 2026.09.19 1753 UTC
99.0 (37.2) 72.0 (22.2) In the 24 hours preceding Sep 19, 2026 - 01:53 AM EDT / 2026.09.19 0553 UTC

24 Hour Summary

Time
EDT (UTC)
Temperature
F (C)
Dew Point
F (C)
Pressure
Inches (hPa)
Wind
MPH
Weather
Latest 5 PM (21) Sep 19 96.1 (35.6) 66.0 (18.9) 29.89 (1012) Calm
4 PM (20) Sep 19 93.0 (33.9) 64.9 (18.3) 29.91 (1012) Variable 5
3 PM (19) Sep 19 96.1 (35.6) 66.0 (18.9) 29.93 (1013) WSW 8
2 PM (18) Sep 19 93.9 (34.4) 66.0 (18.9) 29.96 (1014) WSW 8
1 PM (17) Sep 19 91.9 (33.3) 66.0 (18.9) 29.98 (1015) WSW 7
Noon (16) Sep 19 91.9 (33.3) 64.9 (18.3) 29.98 (1015) W 10
11 AM (15) Sep 19 87.1 (30.6) 66.9 (19.4) 29.98 (1015) WSW 7
10 AM (14) Sep 19 82.9 (28.3) 66.0 (18.9) 29.98 (1015) WSW 6
9 AM (13) Sep 19 79.0 (26.1) 66.0 (18.9) 29.97 (1014) Variable 3
8 AM (12) Sep 19 71.1 (21.7) 68.0 (20.0) 29.96 (1014) Calm
7 AM (11) Sep 19 71.1 (21.7) 68.0 (20.0) 29.96 (1014) Calm
6 AM (10) Sep 19 73.0 (22.8) 69.1 (20.6) 29.95 (1014) S 3
5 AM (9) Sep 19 73.9 (23.3) 70.0 (21.1) 29.95 (1014) S 5
4 AM (8) Sep 19 75.0 (23.9) 70.0 (21.1) 29.96 (1014) S 5
3 AM (7) Sep 19 75.9 (24.4) 70.0 (21.1) 29.98 (1015) S 6
2 AM (6) Sep 19 78.1 (25.6) 70.0 (21.1) 30 (1015) SSE 6
1 AM (5) Sep 19 79.0 (26.1) 71.1 (21.7) 30.01 (1016) SSE 3
Midnight (4) Sep 19 77.0 (25.0) 73.0 (22.8) 30.01 (1016) Calm
11 PM (3) Sep 18 78.1 (25.6) 73.9 (23.3) 30.01 (1016) SSW 3
10 PM (2) Sep 18 79.0 (26.1) 73.9 (23.3) 30.01 (1016) S 3
9 PM (1) Sep 18 82.9 (28.3) 73.9 (23.3) 30.01 (1016) S 3
8 PM (0) Sep 18 86.0 (30.0) 73.0 (22.8) 30.02 (1016) SE 3
7 PM (23) Sep 18 91.9 (33.3) 71.1 (21.7) 30.01 (1016) Calm
Oldest 6 PM (22) Sep 18 93.9 (34.4) 70.0 (21.1) 30.02 (1016) SSE 9
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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