The official National Weather Service forecast for Northwood — 47.7341°N, 97.5667°W, 23.1 miles from I-29.
| Grand Forks County | J | F | M | A | M | J | J | A | S | O | N | D | Year |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 16 | 20 | 34 | 52 | 67 | 77 | 82 | 80 | 72 | 55 | 37 | 22 | 51 |
| Avg low °F | -1 | 1 | 15 | 30 | 42 | 54 | 58 | 55 | 47 | 34 | 20 | 6 | 30 |
| Precip in | 0.5 | 0.5 | 0.9 | 1.5 | 3.0 | 3.7 | 3.2 | 2.5 | 2.2 | 1.9 | 0.8 | 0.8 | 21.5 |
1996–2025 normals for Grand Forks County — the climate division Northwood sits in. All-time county record high 103.2°F (1983-08-08); record low -39.5°F (1996-02-01). Source: NOAA / National Weather Service.