Average Soil Temperature in Saint Louis, MO for August 2026
Data from Shaw Nature Reserve (34.4 mi away) • 25 of 31 days reported
Monthly Summary by Depth
2" depth
80°F
avg
74.3°F – 84°F
25 days
4" depth
80.5°F
avg
74.8°F – 84.2°F
25 days
8" depth
80.7°F
avg
75.6°F – 83.7°F
25 days
20" depth
78.4°F
avg
76.5°F – 80.2°F
25 days
40" depth
74.8°F
avg
73.9°F – 75.6°F
25 days
Daily Readings
| Date | 2" | 4" | 8" | 20" | 40" |
|---|---|---|---|---|---|
| Aug 1 | 75.9°F | 76.5°F | 77.4°F | 77.9°F | 75°F |
| Aug 2 | 78.1°F | 78.8°F | 79.5°F | 77.4°F | 74.7°F |
| Aug 3 | 78.6°F | 79.5°F | 79.9°F | 77.5°F | 74.7°F |
| Aug 4 | 79.5°F | 80.2°F | 80.6°F | 77.7°F | 74.3°F |
| Aug 5 | 80.4°F | 80.8°F | 80.4°F | 77.9°F | 74.3°F |
| Aug 6 | 74.3°F | 74.8°F | 75.6°F | 76.6°F | 74.7°F |
| Aug 7 | 79.5°F | 79.7°F | 79.2°F | 76.5°F | 74.3°F |
| Aug 8 | 81°F | 81.3°F | 80.8°F | 77.2°F | 73.9°F |
| Aug 9 | 82°F | 82.4°F | 81.7°F | 77.9°F | 74.3°F |
| Aug 10 | 82°F | 82°F | 81.5°F | 78.3°F | 74.3°F |
| Aug 11 | 82.4°F | 83.1°F | 82.8°F | 78.8°F | 74.3°F |
| Aug 12 | 81.5°F | 81.9°F | 82°F | 79.2°F | 74.7°F |
| Aug 13 | 83.5°F | 83.8°F | 83.1°F | 79.2°F | 74.7°F |
| Aug 14 | 84°F | 84.2°F | 83.7°F | 79.7°F | 75°F |
| Aug 15 | 84°F | 83.8°F | 83.5°F | 79.9°F | 75°F |
| Aug 16 | 82.4°F | 82.6°F | 82.9°F | 80.2°F | 75.6°F |
| Aug 17 | 80.4°F | 81.3°F | 82°F | 80.1°F | 75.6°F |
| Aug 18 | 80.4°F | 81.1°F | 81.5°F | 79.5°F | 75.6°F |
| Aug 19 | 78.6°F | 79.3°F | 80.1°F | 79°F | 75.6°F |
| Aug 20 | 79.2°F | 79.7°F | 80.4°F | 78.6°F | 75.6°F |
| Aug 21 | 80.1°F | 80.6°F | 80.8°F | 78.4°F | 75°F |
| Aug 22 | 79.2°F | 79.9°F | 80.6°F | 78.6°F | 75°F |
| Aug 23 | 76.5°F | 77.7°F | 79.2°F | 78.3°F | 75°F |
| Aug 24 | 77.2°F | 77.7°F | 78.4°F | 77.5°F | 75°F |
| Aug 25 | 79.2°F | 79.3°F | 79.3°F | 77.4°F | 74.7°F |