The official National Weather Service forecast for Woonsocket — 44.0536°N, 98.2756°W, 24.8 miles from I-90.
| Sanborn County | J | F | M | A | M | J | J | A | S | O | N | D | Year |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 27 | 32 | 44 | 58 | 70 | 81 | 86 | 84 | 77 | 61 | 46 | 31 | 58 |
| Avg low °F | 7 | 10 | 22 | 33 | 46 | 57 | 62 | 60 | 51 | 37 | 23 | 12 | 35 |
| Precip in | 0.5 | 0.7 | 1.1 | 2.5 | 3.2 | 3.7 | 2.8 | 2.9 | 2.4 | 2.1 | 0.8 | 0.7 | 23.4 |
1996–2025 normals for Sanborn County — the climate division Woonsocket sits in. All-time county record high 108.2°F (2006-07-16); record low -35.2°F (1970-01-19). Source: NOAA / National Weather Service.