Average Soil Temperature in Roundup, MT for August 2026
Data from Moccasin (79.8 mi away) • 25 of 31 days reported
Monthly Summary by Depth
2" depth
71°F
avg
64.2°F – 77.9°F
25 days
4" depth
73°F
avg
66.6°F – 79.2°F
25 days
8" depth
71.5°F
avg
67.1°F – 75.9°F
25 days
20" depth
66.9°F
avg
65.5°F – 68.5°F
25 days
40" depth
63.9°F
avg
63.3°F – 64.4°F
25 days
Daily Readings
| Date | 2" | 4" | 8" | 20" | 40" |
|---|---|---|---|---|---|
| Aug 1 | 77.9°F | 79.2°F | 75.9°F | 68.5°F | 64°F |
| Aug 2 | 75.2°F | 76.8°F | 74.8°F | 68.5°F | 64.2°F |
| Aug 3 | 68.4°F | 72.1°F | 72.5°F | 68.4°F | 64.4°F |
| Aug 4 | 69.4°F | 72.7°F | 71.8°F | 67.5°F | 64.4°F |
| Aug 5 | 70.9°F | 73.4°F | 72°F | 67.1°F | 64.2°F |
| Aug 6 | 71.1°F | 73.4°F | 71.8°F | 67.1°F | 64°F |
| Aug 7 | 73.2°F | 74.8°F | 72.5°F | 67.1°F | 64°F |
| Aug 8 | 73.2°F | 74.8°F | 72.9°F | 67.3°F | 64°F |
| Aug 9 | 72.7°F | 74.8°F | 72.9°F | 67.5°F | 64°F |
| Aug 10 | 74.1°F | 75.6°F | 73°F | 67.5°F | 64.2°F |
| Aug 11 | 72.9°F | 75.2°F | 73.4°F | 67.6°F | 64.2°F |
| Aug 12 | 73.2°F | 74.3°F | 72.3°F | 67.6°F | 64.4°F |
| Aug 13 | 65.7°F | 67.6°F | 68.5°F | 67.1°F | 64.4°F |
| Aug 14 | 64.2°F | 66.6°F | 67.1°F | 66.2°F | 64.2°F |
| Aug 15 | 68°F | 70.3°F | 68.7°F | 65.5°F | 63.9°F |
| Aug 16 | 67.6°F | 70.5°F | 69.4°F | 65.7°F | 63.7°F |
| Aug 17 | 67.8°F | 69.6°F | 68.7°F | 65.7°F | 63.5°F |
| Aug 18 | 68.4°F | 70.5°F | 69.4°F | 65.5°F | 63.3°F |
| Aug 19 | 69.8°F | 72°F | 70.2°F | 65.7°F | 63.3°F |
| Aug 20 | 71.6°F | 73.4°F | 71.2°F | 66°F | 63.3°F |
| Aug 21 | 73°F | 74.7°F | 72.1°F | 66.4°F | 63.5°F |
| Aug 22 | 73.4°F | 73.4°F | 71.1°F | 66.6°F | 63.7°F |
| Aug 23 | 72.1°F | 73.9°F | 72.1°F | 66.9°F | 63.9°F |
| Aug 24 | 70°F | 72.7°F | 71.6°F | 66.9°F | 64°F |
| Aug 25 | 70.3°F | 72°F | 70.7°F | 66.7°F | 64°F |