Weather in Helena, CA
Helena, Tuesday, 13 October, 00:23
Clear. Feels like 40°. High 71°, low 35°.
Monthly outlook for Helena, CA: average high 73.9°, average low 46.4°. That is 3.4° above the climate normal for October. Precipitation is expected on 1 day (about 0.4 inches), against a normal of 3 days and 1.5 inches. The warmest day looks like 27 October (87.4°), the coolest 13 October (35.2°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 13 October – 22 October | 68.6° | 69.8° | -0.7° |
| 23 October – 1 November | 82.7° | 63.6° | +10.6° |
| 2 November – 11 November | at normal | 58.2° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Hayfork (15 mi).
0
Helena, Wednesday, 14 October
Clear. High 75°, low 43°.
0Helena, Thursday, 15 October
Clear. High 79°, low 51°.
0Helena, Friday, 16 October
Clear. High 80°, low 53°.
0Helena, Saturday, 17 October
Clear. High 75°, low 50°.
0Helena, Sunday, 18 October
Clear. High 77°, low 46°.
0.36
Helena, Monday, 19 October
Rain. High 51°, low 40°.
0
Helena, Tuesday, 20 October
Overcast. High 56°, low 38°.
0Helena, Wednesday, 21 October
Clear. High 64°, low 36°.
0
Helena, Thursday, 22 October
Partly cloudy. High 58°, low 40°.
0Helena, Friday, 23 October
Clear. High 74°, low 41°.
0Helena, Saturday, 24 October
Clear. High 84°, low 49°.
0Helena, Sunday, 25 October
Overcast. High 86°, low 54°.
0Helena, Monday, 26 October
Clear. High 86°, low 54°.
0Helena, Tuesday, 27 October
Clear. High 87°, low 56°.
0Helena, Wednesday, 28 October
Clear. High 79°, low 57°.
0.14Helena, Thursday, 29 October
Climate normal for this date — 60-year average.
0.11
Helena, Friday, 30 October
Climate normal for this date — 60-year average.
0.07Helena, Saturday, 31 October
Climate normal for this date — 60-year average.
0.09Helena, Sunday, 1 November
Climate normal for this date — 60-year average.
0.12Helena, Monday, 2 November
Climate normal for this date — 60-year average.
0.1Helena, Tuesday, 3 November
Climate normal for this date — 60-year average.
0.1Helena, Wednesday, 4 November
Climate normal for this date — 60-year average.
0.15Helena, Thursday, 5 November
Climate normal for this date — 60-year average.
0.17Helena, Friday, 6 November
Climate normal for this date — 60-year average.
0.19Helena, Saturday, 7 November
Climate normal for this date — 60-year average.
0.14Helena, Sunday, 8 November
Climate normal for this date — 60-year average.
0.2Helena, Monday, 9 November
Climate normal for this date — 60-year average.
0.19Helena, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.2Helena, Wednesday, 11 November
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 Helena, 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 Helena, 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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