Weather in Helena West Side, MT
Helena West Side, Sunday, 9 August, 08:09
Mostly clear. Feels like 64°. High 89°, low 55°.
Monthly outlook for Helena West Side, MT: average high 87.3°, average low 58.5°. That is 4° above the climate normal for August. Precipitation is expected on 3 days (about 0.4 inches), against a normal of 5 days and 0.9 inches. The warmest day looks like 24 August (98°), the coolest 15 August (51.3°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 9 August – 18 August | 82.8° | 80.9° | +1° |
| 19 August – 28 August | 94.9° | 78.9° | +8.9° |
| 29 August – 7 September | at normal | 76.2° | — |
August records over 66 years
Climate normals and records are computed from the nearest reference point — Helena (4 mi).
0
Helena West Side, Monday, 10 August
Clear. High 88°, low 51°.
0Helena West Side, Tuesday, 11 August
Clear. High 90°, low 58°.
0.02
Helena West Side, Wednesday, 12 August
Light rain. High 83°, low 58°.
0.12Helena West Side, Thursday, 13 August
Light rain. High 62°, low 52°.
0.25Helena West Side, Friday, 14 August
Rain. High 74°, low 53°.
0.06Helena West Side, Saturday, 15 August
Light rain. High 83°, low 51°.
0Helena West Side, Sunday, 16 August
Mostly clear. High 88°, low 57°.
0
Helena West Side, Monday, 17 August
Overcast. High 86°, low 66°.
0Helena West Side, Tuesday, 18 August
Clear. High 87°, low 59°.
0Helena West Side, Wednesday, 19 August
Clear. High 90°, low 58°.
0Helena West Side, Thursday, 20 August
Overcast. High 95°, low 63°.
0Helena West Side, Friday, 21 August
Clear. High 93°, low 62°.
0Helena West Side, Saturday, 22 August
Clear. High 97°, low 60°.
0Helena West Side, Sunday, 23 August
Clear. High 96°, low 65°.
0Helena West Side, Monday, 24 August
Clear. High 98°, low 67°.
0.03
Helena West Side, Tuesday, 25 August
Climate normal for this date — 60-year average.
0.03Helena West Side, Wednesday, 26 August
Climate normal for this date — 60-year average.
0.04Helena West Side, Thursday, 27 August
Climate normal for this date — 60-year average.
0.07Helena West Side, Friday, 28 August
Climate normal for this date — 60-year average.
0.04Helena West Side, Saturday, 29 August
Climate normal for this date — 60-year average.
0.06Helena West Side, Sunday, 30 August
Climate normal for this date — 60-year average.
0.06Helena West Side, Monday, 31 August
Climate normal for this date — 60-year average.
0.06Helena West Side, Tuesday, 1 September
Climate normal for this date — 60-year average.
0.04Helena West Side, Wednesday, 2 September
Climate normal for this date — 60-year average.
0.02Helena West Side, Thursday, 3 September
Climate normal for this date — 60-year average.
0.05Helena West Side, Friday, 4 September
Climate normal for this date — 60-year average.
0.06Helena West Side, Saturday, 5 September
Climate normal for this date — 60-year average.
0.05Helena West Side, Sunday, 6 September
Climate normal for this date — 60-year average.
0.07Helena West Side, Monday, 7 September
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 West Side, MT 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 West Side, MT 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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