The official National Weather Service forecast for Crofton — 39.0018°N, 76.6875°W, 4.1 miles from I-97. Forecasts here are written by NWS LWX, this county’s forecast office.
| Anne Arundel County | J | F | M | A | M | J | J | A | S | O | N | D | Year |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 44 | 48 | 56 | 67 | 75 | 84 | 88 | 86 | 80 | 69 | 58 | 48 | 67 |
| Avg low °F | 27 | 29 | 36 | 46 | 55 | 64 | 69 | 68 | 61 | 49 | 38 | 32 | 48 |
| Precip in | 3.0 | 2.7 | 3.6 | 3.5 | 4.1 | 4.4 | 4.6 | 4.5 | 4.5 | 3.8 | 3.0 | 3.7 | 45.4 |
1996–2025 normals for Anne Arundel County — the climate division Crofton sits in. All-time county record high 102.6°F (2012-07-08); record low -3.9°F (1982-01-17). Source: NOAA / National Weather Service.