The official National Weather Service forecast for Shell Knob — 36.6323°N, 93.6344°W, 33 miles from I-44. Forecasts here are written by NWS SGF, this county’s forecast office.
| Barry County | J | F | M | A | M | J | J | A | S | O | N | D | Year |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 46 | 50 | 60 | 69 | 76 | 84 | 89 | 88 | 82 | 71 | 59 | 49 | 69 |
| Avg low °F | 25 | 28 | 36 | 45 | 54 | 63 | 67 | 66 | 58 | 47 | 37 | 29 | 46 |
| Precip in | 2.6 | 2.5 | 4.4 | 4.7 | 6.5 | 4.2 | 3.6 | 3.4 | 3.9 | 4.0 | 3.4 | 2.9 | 46.1 |
1996–2025 normals for Barry County — the climate division Shell Knob sits in. All-time county record high 110.4°F (1954-07-14); record low -14.0°F (1989-12-23). Source: NOAA / National Weather Service.