Weather in Helena Valley Southeast, MT
Helena Valley Southeast, Sunday, 9 August, 13:48
Overcast. Feels like 82°. High 87°, low 54°.
Monthly outlook for Helena Valley Southeast, MT: average high 87.9°, average low 57.2°. That is 4.3° above the climate normal for August. Precipitation is expected on 3 days (about 0.3 inches), against a normal of 5 days and 0.9 inches. The warmest day looks like 24 August (98.3°), the coolest 15 August (52.4°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 9 August – 18 August | 84.1° | 80.9° | +1.7° |
| 19 August – 28 August | 94.2° | 78.9° | +8.5° |
| 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 (5 mi).
0
Helena Valley Southeast, Monday, 10 August
Clear. High 91°, low 53°.
0Helena Valley Southeast, Tuesday, 11 August
Clear. High 94°, low 52°.
0.02
Helena Valley Southeast, Wednesday, 12 August
Light rain. High 85°, low 55°.
0.05Helena Valley Southeast, Thursday, 13 August
Light rain. High 71°, low 56°.
0.18Helena Valley Southeast, Friday, 14 August
Light rain. High 73°, low 55°.
0.03Helena Valley Southeast, Saturday, 15 August
Light rain. High 79°, low 52°.
0.06Helena Valley Southeast, Sunday, 16 August
Light rain. High 85°, low 56°.
0Helena Valley Southeast, Monday, 17 August
Overcast. High 85°, low 53°.
0Helena Valley Southeast, Tuesday, 18 August
Overcast. High 91°, low 57°.
0
Helena Valley Southeast, Wednesday, 19 August
Partly cloudy. High 91°, low 59°.
0Helena Valley Southeast, Thursday, 20 August
Overcast. High 93°, low 62°.
0Helena Valley Southeast, Friday, 21 August
Clear. High 95°, low 64°.
0Helena Valley Southeast, Saturday, 22 August
Clear. High 94°, low 62°.
0Helena Valley Southeast, Sunday, 23 August
Partly cloudy. High 95°, low 62°.
0Helena Valley Southeast, Monday, 24 August
Clear. High 98°, low 61°.
0.03Helena Valley Southeast, Tuesday, 25 August
Climate normal for this date — 60-year average.
0.03
Helena Valley Southeast, Wednesday, 26 August
Climate normal for this date — 60-year average.
0.04Helena Valley Southeast, Thursday, 27 August
Climate normal for this date — 60-year average.
0.07Helena Valley Southeast, Friday, 28 August
Climate normal for this date — 60-year average.
0.04Helena Valley Southeast, Saturday, 29 August
Climate normal for this date — 60-year average.
0.06Helena Valley Southeast, Sunday, 30 August
Climate normal for this date — 60-year average.
0.06Helena Valley Southeast, Monday, 31 August
Climate normal for this date — 60-year average.
0.06Helena Valley Southeast, Tuesday, 1 September
Climate normal for this date — 60-year average.
0.04Helena Valley Southeast, Wednesday, 2 September
Climate normal for this date — 60-year average.
0.02Helena Valley Southeast, Thursday, 3 September
Climate normal for this date — 60-year average.
0.05Helena Valley Southeast, Friday, 4 September
Climate normal for this date — 60-year average.
0.06Helena Valley Southeast, Saturday, 5 September
Climate normal for this date — 60-year average.
0.05Helena Valley Southeast, Sunday, 6 September
Climate normal for this date — 60-year average.
0.07Helena Valley Southeast, 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 Valley Southeast, 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 Valley Southeast, 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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