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Current Weather Conditions:
Alton/St. Louis, St. Louis Regional Airport, IL, United States

(KALN) 38-54N 090-03W

Conditions at

2009.07.04 1650 UTC
Wind from the SE (140 degrees) at 15 MPH (13 KT)
Visibility 4 mile(s)
Sky conditions overcast
Weather Light rain with thunder
Temperature 68 F (20 C)
Dew Point 66 F (19 C)
Relative Humidity 93%
Pressure (altimeter) 29.93 in. Hg (1013 hPa)
ob KALN 041650Z 14013KT 4SM -TSRA BKN007 OVC020 20/19 A2993 RMK TS NW MOV E

Maximum and Minimum Temperatures

Maximum
Temperature
F (C)
Minimum
Temperature
F (C)
71.6 (22.0) 67.1 (19.5) In the 6 hours preceding Jul 04, 2009 - 07:43 AM EDT / 2009.07.04 1143 UTC
82.8 (28.2) 56.7 (13.7) In the 24 hours preceding Jul 04, 2009 - 01:43 AM EDT / 2009.07.04 0543 UTC

Precipitation Accumulation

Precipitation
Amount
0.21 inches In the 6 hours preceding Jul 04, 2009 - 07:43 AM EDT / 2009.07.04 1143 UTC
0.21 inches In the 24 hours preceding Jul 04, 2009 - 07:43 AM EDT / 2009.07.04 1143 UTC

24 Hour Summary

Time
EDT (UTC)
Temperature
F (C)
Dew Point
F (C)
Pressure
Inches (hPa)
Wind
MPH
Weather
Latest 1 PM (17) Jul 04 68 (20) 66 (19) 29.93 (1013) SE 15 light rain with thunder
Noon (16) Jul 04 66 (19) 66 (19) 29.95 (1014) SSE 15 heavy rain with thunder; mist
11 AM (15) Jul 04 66 (19) 66 (19) 29.97 (1014) SSE 16 rain; mist
10 AM (14) Jul 04 64 (18) 64 (18) 30.02 (1016) SSE 12 heavy rain; mist
9 AM (13) Jul 04 64 (18) 64 (18) 30.01 (1016) SE 12 rain; mist
8 AM (12) Jul 04 66 (19) 66 (19) 30.03 (1016) SE 9 rain with thunder; mist
7 AM (11) Jul 04 67.1 (19.5) 65.5 (18.6) 30.04 (1017) SE 6 heavy rain
6 AM (10) Jul 04 67.5 (19.7) 65.3 (18.5) 30.02 (1016) E 6 rain
5 AM (9) Jul 04 68.4 (20.2) 65.5 (18.6) 30.02 (1016) Calm light rain
4 AM (8) Jul 04 70.0 (21.1) 63.7 (17.6) 30.03 (1016) Calm
3 AM (7) Jul 04 71.2 (21.8) 63.1 (17.3) 30.01 (1016) E 5
2 AM (6) Jul 04 71.4 (21.9) 63.3 (17.4) 30.03 (1016) ENE 5
1 AM (5) Jul 04 71.6 (22.0) 63.9 (17.7) 30.06 (1017) E 6
Midnight (4) Jul 04 71.2 (21.8) 65.5 (18.6) 30.07 (1018) ENE 3 light rain
11 PM (3) Jul 03 72.0 (22.2) 65.5 (18.6) 30.07 (1018) Calm light rain
10 PM (2) Jul 03 72.3 (22.4) 66.9 (19.4) 30.09 (1018) Calm light rain
9 PM (1) Jul 03 74.5 (23.6) 64.6 (18.1) 30.07 (1018) Calm
8 PM (0) Jul 03 77 (25) 60 (16) 30.08 (1018) Calm
7 PM (23) Jul 03 78 (26) 60 (16) 30.08 (1018) Variable 6
6 PM (22) Jul 03 80 (27) 59 (15) 30.1 (1019) Calm
5 PM (21) No Data
4 PM (20) Jul 03 80 (27) 59 (15) 30.11 (1019) Calm
3 PM (19) No Data
Oldest 2 PM (18) No Data
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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