Weather in Helena, ID
Helena, Thursday, 22 October, 18:44
Overcast. Feels like 46°. High 49°, low 29°.
Monthly outlook for Helena, ID: average high 44.9°, average low 27.3°. That is 4.4° above the climate normal for October. Precipitation is expected on 4 days (about 1.5 inches), against a normal of 6 days and 1.7 inches. The warmest day looks like 26 October (53°), the coolest 24 October (15.4°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 22 October – 31 October | 43.9° | 38.3° | +3.1° |
| 1 November – 10 November | 46.7° | 33.4° | +7.4° |
| 11 November – 20 November | at normal | 29.3° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Devils Ladder (11 mi).
0.55
Helena, Friday, 23 October
Snow. High 40°, low 25°.
0Helena, Saturday, 24 October
Overcast. High 49°, low 15°.
0Helena, Sunday, 25 October
Overcast. High 52°, low 34°.
0.01
Helena, Monday, 26 October
Light rain. High 53°, low 38°.
0.45Helena, Tuesday, 27 October
Snow. High 36°, low 33°.
0.19Helena, Wednesday, 28 October
Snow. High 38°, low 31°.
0.02Helena, Thursday, 29 October
Light snow. High 35°, low 28°.
0
Helena, Friday, 30 October
Clear. High 42°, low 23°.
0Helena, Saturday, 31 October
Clear. High 45°, low 24°.
0Helena, Sunday, 1 November
Clear. High 47°, low 27°.
0Helena, Monday, 2 November
Clear. High 45°, low 25°.
0Helena, Tuesday, 3 November
Clear. High 45°, low 22°.
0Helena, Wednesday, 4 November
Clear. High 49°, low 25°.
0Helena, Thursday, 5 November
Clear. High 49°, low 27°.
0
Helena, Friday, 6 November
Partly cloudy. High 45°, low 29°.
0.15Helena, Saturday, 7 November
Climate normal for this date — 60-year average.
0.11
Helena, Sunday, 8 November
Climate normal for this date — 60-year average.
0.13Helena, Monday, 9 November
Climate normal for this date — 60-year average.
0.09Helena, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.09Helena, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.13Helena, Thursday, 12 November
Climate normal for this date — 60-year average.
0.13Helena, Friday, 13 November
Climate normal for this date — 60-year average.
0.1Helena, Saturday, 14 November
Climate normal for this date — 60-year average.
0.06Helena, Sunday, 15 November
Climate normal for this date — 60-year average.
0.13Helena, Monday, 16 November
Climate normal for this date — 60-year average.
0.15Helena, Tuesday, 17 November
Climate normal for this date — 60-year average.
0.16Helena, Wednesday, 18 November
Climate normal for this date — 60-year average.
0.12Helena, Thursday, 19 November
Climate normal for this date — 60-year average.
0.11Helena, Friday, 20 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, ID 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, ID 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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