Weather observations for the past three days for
St. Charles, St. Charles County Smartt Airport
Imperial (Metric)
Date Time (cdt) Wind (mph) Vis. (mi.) Weather Sky Cond. Temperature (ºF) Relative Humidity Wind Chill (°F) Heat Index (°F) Pressure Precipitation (in)
Air Dwpt 6 hour altimeter (in) sea level (mb) 1 hr 3 hr 6 hr
Max. Min.
18 13:54 SE 7 10.00 Fair CLR 63 35.1 35% 30.41 1029.6
18 12:54 SE 9 10.00 Fair CLR 61 35.1 62.1 37 38% 30.44 1030.8
18 11:54 S 9 10.00 Fair CLR 60.1 35.1 39% 30.47 1031.7
18 10:54 S 8 10.00 Fair CLR 57.9 37 46% 30.49 1032.6
18 09:54 SE 5 10.00 Fair CLR 52 39 61% 30.5 1033.0
18 08:54 E 6 10.00 Fair CLR 48 41 77% 46 30.5 1032.8
18 07:54 E 3 10.00 Fair CLR 39 37.9 96% 30.5 1032.8
18 06:54 Calm 10.00 Fair CLR 39.9 37.9 43 37.9 93% 30.49 1032.4
18 05:54 Calm 10.00 Fair CLR 39 37 93% 30.47 1031.9
18 04:54 NE 3 1.50 Fog/Mist CLR 39 37.9 96% 30.46 1031.5
18 03:54 Calm 2.00 Fog/Mist CLR 39.9 39 97% 30.46 1031.3
18 02:54 E 3 10.00 Fair CLR 39.9 39.9 100% 30.45 1031.2
18 01:54 E 5 10.00 Fair CLR 41 39.9 96% 38 30.45 1031.2
18 00:54 E 6 10.00 Fair CLR 41 39.9 46.9 41 96% 38 30.45 1031.2
17 23:54 Calm 0.50 Fog CLR 42.1 42.1 100% 30.46 1031.5
17 22:54 Calm 1.75 Fog/Mist CLR 43 42.1 97% 30.47 1031.7
17 21:54 Calm 10.00 Fair CLR 44.1 43 96% 30.46 1031.5
17 20:54 Calm 10.00 Fair CLR 46 41 83% 30.46 1031.5
17 19:54 Calm 10.00 Fair CLR 46 39.9 79% 30.46 1031.7
17 18:54 S 5 10.00 Fair CLR 50 39 59 50 66% 49 30.46 1031.5
17 17:54 S 3 10.00 Fair CLR 55.9 36 47% 30.46 1031.5
17 16:54 Calm 10.00 Fair CLR 57.9 33.1 39% 30.47 1031.7
17 15:54 Calm 10.00 Fair CLR 57.9 34 41% 30.48 1032.0
17 14:54 Vrbl 5 9.00 Fair CLR 57 35.1 44% 30.49 1032.5
17 13:54 Calm 10.00 Fair CLR 55 34 45% 30.52 1033.5
17 12:54 Calm 10.00 Fair CLR 55 35.1 55.9 41 47% 30.55 1034.4
17 11:54 SW 5 10.00 Fair CLR 53.1 35.1 51% 30.57 1035.0
17 10:54 N 3 10.00 Fair CLR 51.1 37 59% 30.58 1035.5
17 09:54 NE 6 10.00 Fair CLR 48 37.9 68% 46 30.58 1035.4
17 08:54 N 6 10.00 Fair CLR 46 37 71% 44 30.57 1035.3
17 07:54 N 9 10.00 Fair CLR 43 37 80% 38 30.55 1034.6
17 06:54 N 6 10.00 Fair CLR 42.1 37 48.9 41 82% 39 30.54 1034.0
17 05:54 N 8 10.00 Fair CLR 42.1 37 82% 38 30.52 1033.6
17 04:54 N 10 10.00 Fair CLR 44.1 37.9 79% 39 30.5 1032.9
17 03:54 N 13 10.00 Fair CLR 45 37.9 77% 39 30.49 1032.4
17 02:54 N 12 10.00 Fair CLR 46 39 77% 41 30.48 1032.3
17 01:54 N 10 10.00 Fair CLR 46.9 39.9 77% 43 30.47 1032.0
17 00:54 N 12 G 21 10.00 Partly Cloudy SCT060 48.9 39.9 53.1 48.9 71% 45 30.47 1031.7 0.03
16 23:54 N 12 10.00 Mostly Cloudy BKN065 50 42.1 74% 46 30.45 1031.2
16 22:54 NW 9 G 21 10.00 Overcast OVC065 51.1 43 74% 30.45 1031.1
16 21:54 NW 13 G 21 10.00 Overcast OVC065 51.1 44.1 77% 30.43 1030.3 0.03
16 20:54 NW 17 G 24 10.00 Overcast OVC065 52 45 77% 30.4 1029.5
16 19:54 N 10 G 21 10.00 Overcast SCT020 OVC049 52 46.9 83% 30.38 1028.8 0.03
16 18:54 N 7 10.00 Light Rain BKN027 BKN032 OVC039 53.1 48 55 51.1 83% 30.35 1027.7 0.01 0.06
16 17:54 NW 17 G 26 10.00 Light Rain SCT023 BKN037 OVC070 53.1 48 83% 30.32 1026.5
16 16:54 NW 15 10.00 Mostly Cloudy FEW026 SCT036 BKN055 54 48 80% 30.29 1025.5
16 15:54 NW 16 G 22 10.00 Overcast FEW018 BKN028 OVC036 53.1 48 83% 30.27 1024.9 0.01 0.05
16 14:54 NW 16 G 24 10.00 Light Rain FEW026 BKN034 OVC043 52 48 86% 30.25 1024.3 0.03
16 13:54 NW 17 G 32 6.00 Light Rain SCT032 BKN049 OVC100 52 45 77% 30.25 1024.1 0.01
16 12:54 NW 20 G 25 10.00 Mostly Cloudy BKN039 BKN065 55 41 57.9 50 59% 30.23 1023.7
16 11:54 NW 15 G 26 10.00 Overcast OVC046 55 39 55% 30.24 1023.9
16 10:54 NW 21 G 36 10.00 Overcast and Breezy BKN041 OVC048 54 39 57% 30.23 1023.6
16 09:54 NW 16 10.00 Mostly Cloudy BKN046 52 39.9 64% 30.23 1023.6
16 08:54 NW 20 G 29 10.00 Fair CLR 51.1 39.9 66% 30.23 1023.3
16 07:54 NW 20 G 28 10.00 Fair CLR 50 41 71% 44 30.21 1022.6
16 06:54 NW 16 10.00 Fair CLR 51.1 41 57 51.1 69% 30.19 1021.9
16 05:54 NW 18 G 30 10.00 Partly Cloudy SCT043 53.1 41 64% 30.16 1021.0
16 04:54 NW 20 G 28 10.00 Mostly Cloudy FEW022 BKN027 BKN035 55 48 77% 30.13 1020.0
16 03:54 NW 13 10.00 Mostly Cloudy SCT029 BKN110 55.9 48.9 77% 30.11 1019.4
16 02:54 NW 13 10.00 Overcast FEW034 OVC100 55.9 48.9 77% 30.12 1019.7
16 01:54 NW 14 G 24 10.00 Overcast SCT022 BKN027 OVC100 55.9 51.1 84% 30.1 1018.8
16 00:54 NW 16 10.00 Overcast SCT020 BKN026 OVC060 57 52 75.9 57 83% 30.08 1018.4 0.05
15 23:54 NW 16 G 25 10.00 Overcast BKN017 OVC024 57 53.1 87% 30.05 1017.4 0.02
15 22:54 NW 16 G 29 10.00 Light Rain BKN013 OVC018 60.1 55.9 86% 30.01 1016.1 0.01
15 21:54 NW 22 G 32 10.00 Overcast and Breezy SCT013 OVC049 68 64 87% 29.94 1013.4 0.02 0.02
15 20:54 W 9 10.00 Overcast BKN035 OVC043 75 66 74% 76 29.9 1012.2
15 19:54 SW 8 10.00 Overcast BKN036 BKN047 OVC055 73.9 66.9 79% 29.9 1012.1
15 18:54 W 12 10.00 Fair CLR 75 66 81 73 74% 76 29.89 1011.8
15 17:54 SW 13 G 23 10.00 Partly Cloudy FEW045 SCT085 78.1 64.9 64% 80 29.9 1011.9
15 16:54 W 12 G 22 10.00 Overcast BKN042 OVC060 80.1 66.9 64% 82 29.91 1012.2
15 15:54 SW 13 10.00 Fair CLR 80.1 72 76% 84 29.88 1011.5
15 14:54 SW 16 10.00 Mostly Cloudy FEW030 BKN038 78.1 72 82% 80 29.89 1011.7
Date Time (cdt) Wind (mph) Vis. (mi.) Weather Sky Cond. Air Dwpt Max. Min. Relative Humidity Wind Chill (°F) Heat Index (°F) altimeter (in) sea level (mb) 1 hr 3 hr 6 hr
6 hour
Temperature (ºF) Pressure Precipitation (in)