The official National Weather Service forecast for Chester — 38.9754°N, 76.2894°W, 15.6 miles from I-97. Forecasts here are written by NWS PHI, this county’s forecast office.
| Queen Anne's County | J | F | M | A | M | J | J | A | S | O | N | D | Year |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 43 | 47 | 55 | 66 | 75 | 84 | 88 | 86 | 80 | 69 | 57 | 48 | 66 |
| Avg low °F | 26 | 28 | 35 | 44 | 54 | 63 | 68 | 66 | 60 | 48 | 37 | 31 | 47 |
| Precip in | 3.1 | 2.7 | 3.7 | 3.6 | 3.8 | 4.3 | 4.5 | 4.2 | 4.4 | 3.5 | 2.9 | 3.7 | 44.4 |
1996–2025 normals for Queen Anne's County — the climate division Chester sits in. All-time county record high 103.3°F (2011-07-23); record low -4.9°F (1985-01-22). Source: NOAA / National Weather Service.