Weather observations for the past three days for
St. Charles, St. Charles County Smartt Airport
Metric (Imperial)
Date Time (cdt) Wind (kph) Vis. (km) Weather Sky Cond. Temperature (ºC) Relative Humidity Wind Chill (°C) Heat Index (°C) Pressure Precipitation (cm)
Air Dwpt 6 hour altimeter (cm) sea level (mb) 1 hr 3 hr 6 hr
Max. Min.
19 09:54 Vrbl 6 16.09 Fair CLR 12.2 7.8 75% 77.27 1030.1
19 08:54 E 7 16.09 Fair CLR 9.4 7.8 90% 9 77.24 1029.9
19 07:54 Calm 0.40 Fog CLR 4.4 4.4 100% 77.22 1029.5
19 06:54 Calm 16.09 Fair CLR 3.9 3.9 6.1 3.9 100% 77.19 1029.0
19 05:54 Calm 0.80 Fog CLR 4.4 4.4 100% 77.17 1028.7
19 04:54 Calm 16.09 A Few Clouds FEW002 4.4 3.9 97% 77.14 1028.2
19 03:54 Calm 16.09 Fair CLR 5.6 5 96% 77.14 1028.3
19 02:54 Calm 16.09 Fair CLR 6.1 5.6 97% 77.14 1028.3
19 01:54 Calm 16.09 Fair CLR 5.6 4.4 92% 77.14 1028.3
19 00:54 E 9 16.09 Fair CLR 5.6 4.4 12.2 5.6 92% 4 77.11 1028.1
18 23:54 Calm 16.09 Fair CLR 7.8 6.1 89% 77.14 1028.4
18 22:54 E 6 16.09 Fair CLR 7.8 4.4 79% 77.14 1028.3
18 21:54 E 13 16.09 Fair CLR 7.8 5 83% 6 77.11 1028.2
18 20:54 E 9 16.09 Fair CLR 8.3 5 80% 7 77.11 1028.2
18 19:54 E 7 16.09 Fair CLR 10 5 71% 9 77.11 1028.3
18 18:54 SE 11 16.09 Fair CLR 12.2 3.9 18.9 12.2 57% 77.09 1027.7
18 17:54 SE 9 16.09 Fair CLR 16.1 3.9 44% 77.09 1027.7
18 16:54 S 13 16.09 Fair CLR 18.3 1.1 32% 77.11 1028.0
18 15:54 S 15 16.09 Fair CLR 18.3 1.1 32% 77.14 1028.2
18 14:54 S 15 16.09 Fair CLR 18.3 2.8 36% 77.17 1028.7
18 13:54 SE 11 16.09 Fair CLR 17.2 1.7 35% 77.24 1029.6
18 12:54 SE 15 16.09 Fair CLR 16.1 1.7 16.7 2.8 38% 77.32 1030.8
18 11:54 S 15 16.09 Fair CLR 15.6 1.7 39% 77.39 1031.7
18 10:54 S 13 16.09 Fair CLR 14.4 2.8 46% 77.44 1032.6
18 09:54 SE 7 16.09 Fair CLR 11.1 3.9 61% 77.47 1033.0
18 08:54 E 9 16.09 Fair CLR 8.9 5 77% 8 77.47 1032.8
18 07:54 E 6 16.09 Fair CLR 3.9 3.3 96% 77.47 1032.8
18 06:54 Calm 16.09 Fair CLR 4.4 3.3 6.1 3.3 93% 77.44 1032.4
18 05:54 Calm 16.09 Fair CLR 3.9 2.8 93% 77.39 1031.9
18 04:54 NE 6 2.41 Fog/Mist CLR 3.9 3.3 96% 77.37 1031.5
18 03:54 Calm 3.22 Fog/Mist CLR 4.4 3.9 97% 77.37 1031.3
18 02:54 E 6 16.09 Fair CLR 4.4 4.4 100% 77.34 1031.2
18 01:54 E 7 16.09 Fair CLR 5 4.4 96% 4 77.34 1031.2
18 00:54 E 9 16.09 Fair CLR 5 4.4 8.3 5 96% 3 77.34 1031.2
17 23:54 Calm 0.80 Fog CLR 5.6 5.6 100% 77.37 1031.5
17 22:54 Calm 2.82 Fog/Mist CLR 6.1 5.6 97% 77.39 1031.7
17 21:54 Calm 16.09 Fair CLR 6.7 6.1 96% 77.37 1031.5
17 20:54 Calm 16.09 Fair CLR 7.8 5 83% 77.37 1031.5
17 19:54 Calm 16.09 Fair CLR 7.8 4.4 79% 77.37 1031.7
17 18:54 S 7 16.09 Fair CLR 10 3.9 15 10 66% 9 77.37 1031.5
17 17:54 S 6 16.09 Fair CLR 13.3 2.2 47% 77.37 1031.5
17 16:54 Calm 16.09 Fair CLR 14.4 0.6 39% 77.39 1031.7
17 15:54 Calm 16.09 Fair CLR 14.4 1.1 41% 77.42 1032.0
17 14:54 Vrbl 7 14.48 Fair CLR 13.9 1.7 44% 77.44 1032.5
17 13:54 Calm 16.09 Fair CLR 12.8 1.1 45% 77.52 1033.5
17 12:54 Calm 16.09 Fair CLR 12.8 1.7 13.3 5 47% 77.6 1034.4
17 11:54 SW 7 16.09 Fair CLR 11.7 1.7 51% 77.65 1035.0
17 10:54 N 6 16.09 Fair CLR 10.6 2.8 59% 77.67 1035.5
17 09:54 NE 9 16.09 Fair CLR 8.9 3.3 68% 8 77.67 1035.4
17 08:54 N 9 16.09 Fair CLR 7.8 2.8 71% 6 77.65 1035.3
17 07:54 N 15 16.09 Fair CLR 6.1 2.8 80% 3 77.6 1034.6
17 06:54 N 9 16.09 Fair CLR 5.6 2.8 9.4 5 82% 4 77.57 1034.0
17 05:54 N 13 16.09 Fair CLR 5.6 2.8 82% 3 77.52 1033.6
17 04:54 N 17 16.09 Fair CLR 6.7 3.3 79% 4 77.47 1032.9
17 03:54 N 20 16.09 Fair CLR 7.2 3.3 77% 4 77.44 1032.4
17 02:54 N 19 16.09 Fair CLR 7.8 3.9 77% 5 77.42 1032.3
17 01:54 N 17 16.09 Fair CLR 8.3 4.4 77% 6 77.39 1032.0
17 00:54 N 19 G 33 16.09 Partly Cloudy SCT060 9.4 4.4 11.7 9.4 71% 7 77.39 1031.7 0.08
16 23:54 N 19 16.09 Mostly Cloudy BKN065 10 5.6 74% 8 77.34 1031.2
16 22:54 NW 15 G 33 16.09 Overcast OVC065 10.6 6.1 74% 77.34 1031.1
16 21:54 NW 20 G 33 16.09 Overcast OVC065 10.6 6.7 77% 77.29 1030.3 0.08
16 20:54 NW 28 G 39 16.09 Overcast OVC065 11.1 7.2 77% 77.22 1029.5
16 19:54 N 17 G 33 16.09 Overcast SCT020 OVC049 11.1 8.3 83% 77.17 1028.8 0.08
16 18:54 N 11 16.09 Light Rain BKN027 BKN032 OVC039 11.7 8.9 12.8 10.6 83% 77.09 1027.7 0.03 0.15
16 17:54 NW 28 G 43 16.09 Light Rain SCT023 BKN037 OVC070 11.7 8.9 83% 77.01 1026.5
16 16:54 NW 24 16.09 Mostly Cloudy FEW026 SCT036 BKN055 12.2 8.9 80% 76.94 1025.5
16 15:54 NW 26 G 35 16.09 Overcast FEW018 BKN028 OVC036 11.7 8.9 83% 76.89 1024.9 0.03 0.13
16 14:54 NW 26 G 39 16.09 Light Rain FEW026 BKN034 OVC043 11.1 8.9 86% 76.84 1024.3 0.08
16 13:54 NW 28 G 52 9.66 Light Rain SCT032 BKN049 OVC100 11.1 7.2 77% 76.84 1024.1 0.03
16 12:54 NW 31 G 41 16.09 Mostly Cloudy BKN039 BKN065 12.8 5 14.4 10 59% 76.78 1023.7
16 11:54 NW 24 G 43 16.09 Overcast OVC046 12.8 3.9 55% 76.81 1023.9
16 10:54 NW 33 G 57 16.09 Overcast and Breezy BKN041 OVC048 12.2 3.9 57% 76.78 1023.6
Date Time (cdt) Wind (kph) Vis. (km) Weather Sky Cond. Air Dwpt Max. Min. Relative Humidity Wind Chill (°C) Heat Index (°C) altimeter (cm) sea level (mb) 1 hr 3 hr 6 hr
6 hour
Temperature (ºC) Pressure Precipitation (cm)