Weather in Grand Terrace, CA
Grand Terrace, Saturday, 14 November, 04:49
Mostly clear. Feels like 57°. High 68°, low 57°.
Monthly outlook for Grand Terrace, CA: average high 66.5°, average low 53.8°. That is 1.1° below the climate normal for November. Precipitation is expected on 6 days (about 1.9 inches), against a normal of 2 days and 1.0 inches. The warmest day looks like 22 November (71.9°), the coolest 18 November (44.3°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 14 November – 23 November | 66.1° | 69.4° | -1.8° |
| 24 November – 3 December | 67.1° | 66.5° | +0.3° |
| 4 December – 13 December | at normal | 64.4° | — |
November records over 66 years
Climate normals and records are computed from the nearest reference point — Rubidoux (7 mi).
0
Grand Terrace, Sunday, 15 November
Mostly clear. High 70°, low 55°.
0.05
Grand Terrace, Monday, 16 November
Light rain. High 67°, low 53°.
0.37Grand Terrace, Tuesday, 17 November
Rain. High 61°, low 49°.
0
Grand Terrace, Wednesday, 18 November
Clear. High 61°, low 44°.
0.81Grand Terrace, Thursday, 19 November
Rain. High 59°, low 51°.
0.08Grand Terrace, Friday, 20 November
Light rain. High 63°, low 55°.
0Grand Terrace, Saturday, 21 November
Clear. High 70°, low 53°.
0
Grand Terrace, Sunday, 22 November
Overcast. High 72°, low 56°.
0Grand Terrace, Monday, 23 November
Overcast. High 70°, low 58°.
0Grand Terrace, Tuesday, 24 November
Clear. High 71°, low 55°.
0.39Grand Terrace, Wednesday, 25 November
Rain. High 70°, low 56°.
0.04Grand Terrace, Thursday, 26 November
Light rain. High 66°, low 56°.
0Grand Terrace, Friday, 27 November
Overcast. High 63°, low 54°.
0Grand Terrace, Saturday, 28 November
Overcast. High 63°, low 52°.
0Grand Terrace, Sunday, 29 November
Overcast. High 68°, low 56°.
0.08
Grand Terrace, Monday, 30 November
Climate normal for this date — 60-year average.
0.02Grand Terrace, Tuesday, 1 December
Climate normal for this date — 60-year average.
0.03Grand Terrace, Wednesday, 2 December
Climate normal for this date — 60-year average.
0.09Grand Terrace, Thursday, 3 December
Climate normal for this date — 60-year average.
0.1Grand Terrace, Friday, 4 December
Climate normal for this date — 60-year average.
0.07Grand Terrace, Saturday, 5 December
Climate normal for this date — 60-year average.
0.11Grand Terrace, Sunday, 6 December
Climate normal for this date — 60-year average.
0.13Grand Terrace, Monday, 7 December
Climate normal for this date — 60-year average.
0.04Grand Terrace, Tuesday, 8 December
Climate normal for this date — 60-year average.
0.03Grand Terrace, Wednesday, 9 December
Climate normal for this date — 60-year average.
0.04Grand Terrace, Thursday, 10 December
Climate normal for this date — 60-year average.
0.06Grand Terrace, Friday, 11 December
Climate normal for this date — 60-year average.
0.06Grand Terrace, Saturday, 12 December
Climate normal for this date — 60-year average.
0.06Grand Terrace, Sunday, 13 December
Climate normal for this date — 60-year average.
About the monthly outlook
How accurate is a 30-day forecast?
The first 16 days come from weather models — reliable for the first 3–5 days and progressively less so after that. Days 17 through 30 for Grand Terrace, CA are built from the climate normal, the 60-year average, so they show typical weather for those dates rather than a specific forecast.
What does "above normal" mean?
We compare the forecast against the climate normal for those exact calendar days, computed from 60 years of observations. The deviation shows how much the coming month differs from a typical one.
Where do the 66-year records come from?
They are real temperature extremes recorded in Grand Terrace, CA since 1960: the highest and lowest reading for each calendar date, with the year it happened.
How often is it updated?
The forecast portion refreshes every hour; the climate portion is based on long-term data and stays stable.
Sun and moon today
Weather history
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