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Saint Louis City
 Details for Saint Louis City Extreme Heat Warning  +1 additional alert
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Daily / Monthly Weather History From This Station


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Daily Report for the month of June 2026



16 June Average and Extremes
Average temperature 73.3°F
Average humidity 61%
Average dewpoint 58.5°F
Average barometer 29.8 in.
Average windspeed 2.8 mph
Average gustspeed 4.7 mph
Average direction 179° (S)
Rainfall for month 0.00 in.
Rainfall for year 10.78 in.
Maximum rain per minute 0.00 in. on 16 at 23:59
Maximum temperature 85.5°F on 16 at 18:16
Minimum temperature 59.5°F on 16 at 06:22
Maximum humidity 81% on 16 at 06:57
Minimum humidity 43% on 16 at 18:05
Maximum pressure 29.880 in. on 16 at 04:00
Minimum pressure 29.698 in. on 16 at 18:29
Maximum windspeed 9.2 mph on 16 at 15:01
Maximum gust speed 23.0 mph from 321 °(NW) on 16 at 14:52
Maximum heat index 86.1°F on 16 at 17:12

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17 June Average and Extremes
Average temperature 79.0°F
Average humidity 68%
Average dewpoint 66.4°F
Average barometer 29.6 in.
Average windspeed 6.4 mph
Average gustspeed 9.2 mph
Average direction 169° (S)
Rainfall for month 0.61 in.
Rainfall for year 11.39 in.
Maximum rain per minute 0.25 in. on 17 at 23:38
Maximum temperature 94.6°F on 17 at 16:24
Minimum temperature 64.6°F on 17 at 05:36
Maximum humidity 93% on 17 at 04:47
Minimum humidity 44% on 17 at 17:03
Maximum pressure 29.766 in. on 17 at 00:09
Minimum pressure 29.415 in. on 17 at 17:29
Maximum windspeed 17.3 mph on 17 at 14:33
Maximum gust speed 39.1 mph from 163 °(SSE) on 17 at 14:08
Maximum heat index 101.1°F on 17 at 16:24

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18 June Average and Extremes
Average temperature 72.0°F
Average humidity 72%
Average dewpoint 61.8°F
Average barometer 29.8 in.
Average windspeed 2.0 mph
Average gustspeed 3.7 mph
Average direction 340° (NNW)
Rainfall for month 0.61 in.
Rainfall for year 11.39 in.
Maximum rain per minute 0.00 in. on 18 at 23:59
Maximum temperature 79.3°F on 18 at 12:02
Minimum temperature 65.1°F on 18 at 23:59
Maximum humidity 99% on 18 at 04:54
Minimum humidity 46% on 18 at 12:09
Maximum pressure 29.905 in. on 18 at 23:59
Minimum pressure 29.622 in. on 18 at 00:49
Maximum windspeed 6.9 mph on 18 at 14:23
Maximum gust speed 18.4 mph from 343 °(NNW) on 18 at 11:32
Maximum heat index 80.0°F on 18 at 12:01

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19 June Average and Extremes
Average temperature 74.1°F
Average humidity 63%
Average dewpoint 58.7°F
Average barometer 30.0 in.
Average windspeed 1.3 mph
Average gustspeed 2.3 mph
Average direction 297° (WNW)
Rainfall for month 0.63 in.
Rainfall for year 11.41 in.
Maximum rain per minute 0.02 in. on 19 at 13:09
Maximum temperature 91.0°F on 19 at 16:42
Minimum temperature 61.0°F on 19 at 05:58
Maximum humidity 95% on 19 at 06:45
Minimum humidity 28% on 19 at 16:45
Maximum pressure 30.059 in. on 19 at 10:55
Minimum pressure 29.902 in. on 19 at 01:09
Maximum windspeed 4.6 mph on 19 at 17:43
Maximum gust speed 12.7 mph from 05 °(N) on 19 at 16:20
Maximum heat index 88.9°F on 19 at 16:42

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20 June Average and Extremes
Average temperature 77.5°F
Average humidity 60%
Average dewpoint 62.3°F
Average barometer 30.0 in.
Average windspeed 1.3 mph
Average gustspeed 2.4 mph
Average direction 228° (SW)
Rainfall for month 0.63 in.
Rainfall for year 11.41 in.
Maximum rain per minute 0.00 in. on 20 at 23:59
Maximum temperature 90.7°F on 20 at 17:42
Minimum temperature 68.4°F on 20 at 05:52
Maximum humidity 76% on 20 at 06:43
Minimum humidity 45% on 20 at 17:45
Maximum pressure 30.059 in. on 20 at 09:29
Minimum pressure 29.908 in. on 20 at 20:09
Maximum windspeed 4.6 mph on 20 at 14:13
Maximum gust speed 17.3 mph from 208 °(SSW) on 20 at 10:56
Maximum heat index 94.1°F on 20 at 17:42

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Average and Extremes for Month of June 2026 up to day 20
Average temperature 75.1°F; diff from climate av: -3.8°F
Average humidity 67%
Average dewpoint 62.2°F
Average barometer 29.833 in.
Average windspeed 2.5 mph
Average gustspeed 4.2 mph
Average direction 176° (S)
Rainfall for month 4.80 in.
Rainfall for year 16.45 in.
Maximum rain per minute 0.25 in on 17 at 23:38
Maximum temperature 94.6°F on 17 at 16:24
Minimum temperature 59.5°F on 16 at 06:22
Maximum humidity 100% on 21 at 14:39
Minimum humidity 28% on 19 at 16:45
Maximum pressure 30.06 in. on 19 at 10:55
Minimum pressure 29.41 in. on 17 at 17:29
Maximum windspeed 17.3 mph from 163°(SSE) on 17 at 14:33
Maximum gust speed 39.1 mph from 158°(SSE) on 17 at 14:08
Maximum heat index 101.1°F on 17 at 16:24
Avg daily max temp88.2°F
Avg daily min temp63.7°F
Growing degrees days152.7 GDD


Day, Sunshine Hours, ET, Max Solar, UV
01 04:06hrs ET :0.28 in. 912.3 W/mē 9.8 uv
02 03:48hrs ET :0.20 in. 912.3 W/mē 10.1 uv
03 04:18hrs ET :0.22 in. 912.3 W/mē 10.1 uv
04 02:36hrs ET :0.17 in. 912.3 W/mē 8.7 uv
05 01:54hrs ET :0.19 in. 912.3 W/mē 7.9 uv
06 00:24hrs ET :0.18 in. 912.3 W/mē 8.8 uv
07 01:18hrs ET :0.18 in. 912.3 W/mē 9.7 uv
08 00:54hrs ET :0.11 in. 912.3 W/mē 10.5 uv
09 00:36hrs ET :0.16 in. 912.3 W/mē 7.6 uv
10 02:00hrs ET :0.21 in. 912.3 W/mē 7.9 uv
11 03:06hrs ET :0.21 in. 912.3 W/mē 9.8 uv
12 00:24hrs ET :0.08 in. 0.0 W/mē 0.0 uv
13 03:30hrs ET :0.22 in. 912.3 W/mē 8.6 uv
14 04:12hrs ET :0.20 in. 912.3 W/mē 10.5 uv
15 02:00hrs ET :0.17 in. 912.3 W/mē 9.5 uv
16 02:18hrs ET :0.28 in. 912.3 W/mē 7.3 uv
17 00:18hrs ET :0.12 in. 912.3 W/mē 9.0 uv
18 02:54hrs ET :0.22 in. 789.8 W/mē 5.5 uv
19 00:54hrs ET :0.19 in. 912.3 W/mē 7.4 uv
20 00:00hrs ET :0.00 in. 912.3 W/mē 7.4 uv


Daily Rain Totals
00.61 in. on 17
00.02 in. on 19