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.
20 13:54 W 16 G 22 10.00 Fair CLR 86 43 22% 83 29.86 1010.9
20 12:54 W 15 10.00 Fair CLR 84 45 84 41 25% 82 29.89 1011.9
20 11:54 W 13 10.00 Fair CLR 78.1 46 32% 78 29.91 1012.4
20 10:54 W 9 10.00 Fair CLR 71.1 46 41% 29.92 1013.1
20 09:54 Calm 10.00 Fair CLR 62.1 46 56% 29.93 1013.2
20 08:54 Calm 10.00 Fair CLR 54 46.9 77% 29.93 1013.3
20 07:54 Calm 10.00 Fair CLR 43 41 93% 29.93 1013.2
20 06:54 Calm 10.00 Fair CLR 41 39 53.1 41 93% 29.92 1012.9
20 05:54 Calm 10.00 Fair CLR 41 39.9 96% 29.91 1012.8
20 04:54 Calm 10.00 Fair CLR 45 42.1 90% 29.9 1012.3
20 03:54 Calm 10.00 Fair CLR 44.1 42.1 93% 29.9 1012.4
20 02:54 Calm 10.00 Fair CLR 46.9 44.1 90% 29.93 1013.3
20 01:54 NE 3 10.00 Fair CLR 48.9 44.1 83% 29.95 1013.9
20 00:54 NE 3 10.00 Fair CLR 52 44.1 73.9 50 75% 29.96 1014.3
19 23:54 E 5 10.00 Fair CLR 53.1 45 74% 29.97 1014.5
19 22:54 NE 5 10.00 Fair CLR 51.1 44.1 77% 29.97 1014.7
19 21:54 E 6 10.00 Fair CLR 60.1 44.1 56% 29.97 1014.7
19 20:54 E 8 10.00 Fair CLR 61 43 52% 29.97 1014.7
19 19:54 NE 6 10.00 Fair CLR 64.9 42.1 43% 29.96 1014.4
19 18:54 N 5 10.00 Fair CLR 73.9 39 80.1 70 28% 29.95 1014.1
19 17:54 W 5 10.00 Fair CLR 80.1 37 21% 79 29.94 1013.8
19 16:54 S 8 10.00 Fair CLR 79 39.9 25% 78 29.95 1013.9
19 15:54 S 6 10.00 Fair CLR 78.1 41 27% 78 29.96 1014.4
19 14:54 S 8 10.00 Fair CLR 75.9 42.1 30% 77 29.98 1015.1
19 13:54 SE 12 10.00 Fair CLR 73 41 32% 30.01 1016.1
19 12:54 S 12 10.00 Mostly Cloudy BKN120 69.1 41 70 37 36% 30.03 1016.9
19 11:54 SE 7 10.00 Mostly Cloudy BKN120 66.9 42.1 41% 30.04 1017.2
19 10:54 E 5 10.00 Mostly Cloudy BKN110 59 44.1 58% 30.05 1017.4
19 09:54 E 6 10.00 Overcast OVC110 55 42.1 62% 30.05 1017.5
19 08:54 E 5 10.00 A Few Clouds FEW100 50 42.1 74% 49 30.04 1017.2
19 07:54 E 5 10.00 A Few Clouds FEW110 41 39 93% 38 30.05 1017.4
19 06:54 Calm 10.00 Fair CLR 39 37.9 45 37.9 96% 30.04 1017.2
19 05:54 Calm 10.00 Fair CLR 42.1 37.9 85% 30.03 1016.7
19 04:54 E 3 10.00 A Few Clouds FEW110 41 37.9 89% 30.01 1016.1
19 03:54 E 5 10.00 Fair CLR 37.9 35.1 89% 35 30.01 1016.1
19 02:54 NE 3 10.00 Fair CLR 41 37.9 89% 30.03 1016.8
19 01:54 NE 5 10.00 Fair CLR 42.1 39 89% 40 30.03 1016.7
19 00:54 E 3 10.00 Fair CLR 45 39 62.1 43 80% 30.03 1016.9
18 23:54 NE 5 10.00 Fair CLR 44.1 39.9 85% 42 30.04 1017.4
18 22:54 E 5 10.00 Fair CLR 46 39 77% 44 30.05 1017.7
18 21:54 E 6 10.00 Fair CLR 46.9 39 74% 45 30.04 1017.3
18 20:54 NE 3 10.00 Fair CLR 51.1 39 64% 30.03 1016.7
18 19:54 E 3 10.00 Fair CLR 53.1 42.1 66% 30.01 1016.3
18 18:54 Calm 10.00 Fair CLR 62.1 39 66.9 60.1 43% 29.99 1015.6
18 17:54 W 6 10.00 Fair CLR 66.9 36 32% 29.99 1015.4
18 16:54 W 6 10.00 Fair CLR 66.9 34 30% 29.98 1015.2
18 15:54 SW 8 10.00 Fair CLR 66 33.1 29% 29.98 1015.2
18 14:54 NW 10 10.00 Fair CLR 64.9 35.1 33% 29.99 1015.6
18 13:54 W 8 10.00 Fair CLR 63 30.9 30% 30 1015.7
18 12:54 Calm 0.00 NULL NULL 60.1 28.9 60.1 34 31% 30 1015.8
18 11:54 SW 9 10.00 Fair CLR 55 28.9 37% 30.01 1016.2
18 10:54 S 9 10.00 Fair CLR 51.1 28 41% 30.01 1016.3
18 09:54 S 10 10.00 Fair CLR 46 28.9 51% 42 30.01 1016.5
18 08:54 SE 7 10.00 Fair CLR 39.9 27 60% 36 30.02 1016.6
18 07:54 SE 5 10.00 Fair CLR 35.1 25 67% 32 30.01 1016.5
18 06:54 SE 8 10.00 Overcast OVC085 35.1 24.1 35.1 33.1 64% 29 30.01 1016.4 0.01
18 05:54 SE 8 10.00 Overcast BKN080 OVC110 34 24.1 67% 28 30.01 1016.3 0.01
18 04:54 SE 10 10.00 Unknown Precip OVC070 34 24.1 67% 27 30.02 1016.8
18 03:54 S 10 10.00 Overcast FEW065 SCT085 OVC110 35.1 19 52% 28 30.03 1017.3
18 02:54 SE 8 10.00 Overcast BKN070 OVC085 34 19 54% 28 30.05 1017.9
18 01:54 SE 8 10.00 Overcast BKN070 OVC085 34 19.9 56% 28 30.08 1018.9
18 00:54 SE 12 10.00 Mostly Cloudy FEW070 BKN100 33.1 19 34 32 56% 25 30.09 1019.2
17 23:54 SE 13 10.00 Mostly Cloudy BKN080 34 19 54% 26 30.11 1020.0
17 22:54 SE 12 10.00 Overcast BKN055 OVC065 34 18 52% 26 30.13 1020.8
17 21:54 SE 14 10.00 Overcast BKN055 OVC075 34 16 48% 25 30.15 1021.3
17 20:54 SE 10 10.00 Overcast OVC050 33.1 12 42% 26 30.16 1022.0
17 19:54 SE 7 10.00 Overcast FEW065 OVC085 33.1 12.9 43% 28 30.16 1021.9
17 18:54 S 6 10.00 Overcast OVC080 32 7 32 24.1 35% 27 30.17 1022.2
17 17:54 S 9 10.00 Overcast OVC080 32 3.9 30% 25 30.19 1022.7
17 16:54 SE 3 10.00 Mostly Cloudy BKN110 30.9 5 33% 30.2 1023.2
17 15:54 SW 6 10.00 Fair CLR 30.9 3 30% 26 30.22 1024.0
17 14:54 SW 6 10.00 Fair CLR 28.9 3.9 34% 23 30.26 1025.2
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)