The official National Weather Service forecast for Red Bluff — 40.1785°N, 122.2358°W, population 19,826, 0.8 miles from I-5. Forecasts here are written by NWS STO, this county’s forecast office.
| Tehama County | J | F | M | A | M | J | J | A | S | O | N | D | Year |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 54 | 56 | 60 | 67 | 76 | 86 | 93 | 92 | 86 | 74 | 60 | 53 | 71 |
| Avg low °F | 36 | 37 | 39 | 43 | 50 | 57 | 63 | 61 | 56 | 48 | 40 | 36 | 47 |
| Precip in | 6.1 | 6.0 | 4.9 | 2.7 | 1.7 | 0.6 | 0.0 | 0.1 | 0.4 | 2.0 | 4.4 | 7.2 | 36.1 |
1996–2025 normals for Tehama County — the climate division Red Bluff sits in. All-time county record high 110.3°F (2024-07-07); record low 9.6°F (1972-12-09). Source: NOAA / National Weather Service.