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.
04 12:54 Vrbl 3 10.00 Fair CLR 84.9 68 84.9 69.1 57% 88 30.01 1015.8
04 11:54 SW 6 0.00 Fair CLR 82.9 68 61% 86 30.03 1016.4
04 10:54 SW 6 0.00 Fair CLR 81 69.1 67% 84 30.04 1016.8
04 09:54 Calm 0.00 Fair CLR 77 70 79% 79 30.04 1016.9
04 08:54 Calm 10.00 Mostly Cloudy BKN060 75 69.1 82% 75 30.05 1017.0
04 07:54 Calm 9.00 A Few Clouds FEW060 72 69.1 91% 30.04 1016.8
04 06:54 Calm 9.00 Fair CLR 68 66.9 68 64.9 96% 30.03 1016.3
04 05:54 E 5 7.00 Fair CLR 66 64 93% 30.01 1015.5
04 04:54 E 5 10.00 Fair CLR 66.9 64.9 93% 30 1015.3
04 03:54 Calm 10.00 Fair CLR 66.9 64.9 93% 29.99 1015.0
04 02:54 E 3 10.00 Fair CLR 68 66 93% 29.99 1014.9
04 01:54 E 5 9.00 Fair CLR 66.9 64.9 93% 29.99 1014.9
04 00:54 E 5 10.00 Fair CLR 66 64.9 82 66 96% 29.99 1015.1
03 23:54 Calm 8.00 Fair CLR 68 66 93% 29.99 1015.0
03 22:54 Calm 10.00 Fair CLR 70 66.9 90% 29.97 1014.4
03 21:54 E 3 10.00 Fair CLR 71.1 68 90% 29.97 1014.4
03 20:54 Calm 10.00 Fair CLR 73.9 69.1 85% 29.95 1013.8
03 19:54 N 3 10.00 Fair CLR 78.1 68 71% 80 29.94 1013.3
03 18:54 E 6 10.00 Fair CLR 82.9 66.9 84.9 81 59% 86 29.93 1013.1
03 17:54 E 5 10.00 Fair CLR 84 64.9 53% 86 29.95 1013.6
03 16:54 E 5 10.00 A Few Clouds FEW045 84 64 51% 85 29.95 1013.6
03 15:54 Calm 10.00 Fair CLR 84 63 49% 85 29.96 1014.0
03 14:54 Calm 10.00 Partly Cloudy SCT044 82.9 63 51% 84 29.96 1014.1
03 13:54 N 5 10.00 Fair CLR 82 64 55% 84 29.97 1014.3
03 12:54 Calm 10.00 Fair CLR 82 64.9 82 64.9 56% 84 29.98 1014.7
03 11:54 Calm 10.00 Partly Cloudy SCT032 80.1 64.9 60% 82 29.99 1015.0
03 10:54 Calm 10.00 Fair CLR 78.1 64 62% 80 29.99 1015.1
03 09:54 Calm 10.00 Fair CLR 75.9 64.9 69% 78 29.99 1015.2
03 08:54 Calm 10.00 Fair CLR 73 64.9 76% 29.99 1015.2
03 07:54 Calm 10.00 Fair CLR 71.1 66.9 87% 29.99 1015.0
03 06:54 Calm 9.00 Fair CLR 64.9 63 69.1 63 93% 29.97 1014.6
03 05:54 Calm 10.00 Fair CLR 63 62.1 97% 29.96 1014.0
03 04:54 Calm 10.00 Fair CLR 64.9 63 93% 29.94 1013.4
03 03:54 Calm 10.00 Fair CLR 64 62.1 93% 29.93 1013.0
03 02:54 Calm 10.00 Fair CLR 66.9 63 87% 29.92 1012.7
03 01:54 Calm 10.00 Fair CLR 66.9 64 91% 29.91 1012.5
03 00:54 NW 3 10.00 Fair CLR 69.1 64.9 80.1 68 87% 29.91 1012.4
02 23:54 Calm 10.00 Fair CLR 69.1 64 84% 29.91 1012.4
02 22:54 Calm 10.00 Fair CLR 71.1 64.9 81% 29.9 1012.2
02 21:54 N 8 10.00 Fair CLR 72 64.9 79% 29.9 1012.0
02 20:54 N 6 10.00 Fair CLR 73 66.9 81% 29.88 1011.3
02 19:54 N 6 10.00 Fair CLR 77 66 69% 79 29.86 1010.8
02 18:54 N 6 10.00 Fair CLR 80.1 66 82.9 79 62% 82 29.86 1010.6
02 17:54 N 8 10.00 Fair CLR 82 66 58% 84 29.86 1010.8
02 16:54 N 7 10.00 Fair CLR 82 64.9 56% 84 29.87 1010.9
02 15:54 N 8 10.00 Mostly Cloudy SCT042 BKN050 79 64.9 62% 81 29.87 1011.0
02 14:54 N 15 10.00 A Few Clouds FEW037 FEW047 82 64.9 56% 84 29.87 1010.9
02 13:54 N 12 G 22 10.00 Mostly Cloudy BKN036 81 66 61% 83 29.87 1010.9
02 12:54 NE 15 10.00 Fair CLR 80.1 66 80.1 66.9 62% 82 29.86 1010.8
02 11:54 N 14 10.00 Mostly Cloudy BKN024 75.9 66 72% 77 29.87 1011.2
02 10:54 N 14 10.00 Mostly Cloudy BKN019 BKN024 75 64.9 71% 77 29.86 1010.8
02 09:54 N 10 10.00 Overcast OVC014 72 64.9 79% 29.85 1010.5
02 08:54 N 10 10.00 Overcast OVC011 69.1 64 84% 29.84 1010.1
02 07:54 N 9 10.00 Overcast OVC011 68 64 87% 29.83 1009.8
02 06:54 N 13 10.00 Overcast OVC012 66.9 63 69.1 66 87% 29.83 1009.5
02 05:54 N 12 G 21 10.00 A Few Clouds FEW014 66 63 90% 29.8 1008.8
02 04:54 N 10 10.00 Partly Cloudy FEW011 SCT100 66.9 64 91% 29.79 1008.2
02 03:54 N 9 10.00 Overcast OVC013 68 64.9 90% 29.77 1007.6
02 02:54 N 15 G 22 10.00 Overcast OVC016 69.1 64.9 87% 29.76 1007.5
02 01:54 N 15 G 23 10.00 Overcast OVC017 69.1 64.9 87% 29.76 1007.4
02 00:54 N 14 G 25 10.00 Overcast OVC017 69.1 64.9 70 69.1 87% 29.76 1007.3 0.02
01 23:54 N 15 G 25 10.00 Overcast BKN015 OVC020 69.1 66 90% 29.76 1007.4
01 22:54 N 14 G 25 8.00 Overcast OVC015 69.1 66 90% 29.76 1007.2
01 21:54 N 14 G 23 8.00 Overcast FEW009 BKN014 OVC020 69.1 66 90% 29.75 1007.0 0.02
01 20:54 NW 12 4.00 Fog/Mist BKN013 OVC019 69.1 66.9 93% 29.74 1006.7 0.01
01 19:54 NW 13 3.00 Light Rain Fog/Mist FEW007 BKN013 OVC026 69.1 66.9 93% 29.73 1006.3 0.01
01 18:54 N 13 3.00 Fog/Mist OVC012 70 66.9 75.9 70 90% 29.71 1005.6 0.03
01 17:54 N 15 G 24 10.00 Overcast OVC015 71.1 66.9 87% 29.7 1005.4 0.01
01 16:54 NW 10 7.00 Overcast BKN014 OVC020 72 68 87% 29.69 1004.8
01 15:54 NW 9 5.00 Light Rain Fog/Mist FEW011 BKN036 OVC049 72 68 87% 29.67 1004.4 0.02 0.02
01 14:54 NW 8 10.00 Overcast BKN037 OVC050 75 66.9 76% 76 29.67 1004.3
01 13:54 W 5 10.00 Overcast FEW010 BKN036 OVC060 71.1 66.9 87% 29.68 1004.5
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)