Weather in East Helena, MT
East Helena, Sunday, 9 August, 09:03
Clear. Feels like 72°. High 90°, low 56°.
Monthly outlook for East Helena, MT: average high 90.2°, average low 59.9°. That is 5.6° 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 (102.1°), the coolest 15 August (53.2°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 9 August – 18 August | 85.4° | 80.9° | +2.5° |
| 19 August – 28 August | 98.3° | 78.9° | +10.8° |
| 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).
0East Helena, Monday, 10 August
Clear. High 91°, low 53°.
0East Helena, Tuesday, 11 August
Clear. High 93°, low 58°.
0.01
East Helena, Wednesday, 12 August
Light rain. High 87°, low 58°.
0.07East Helena, Thursday, 13 August
Light rain. High 67°, low 54°.
0.18East Helena, Friday, 14 August
Light rain. High 76°, low 56°.
0.06East Helena, Saturday, 15 August
Light rain. High 81°, low 53°.
0
East Helena, Sunday, 16 August
Mostly clear. High 91°, low 59°.
0
East Helena, Monday, 17 August
Overcast. High 88°, low 68°.
0East Helena, Tuesday, 18 August
Clear. High 90°, low 61°.
0East Helena, Wednesday, 19 August
Clear. High 94°, low 60°.
0East Helena, Thursday, 20 August
Overcast. High 98°, low 64°.
0East Helena, Friday, 21 August
Clear. High 96°, low 64°.
0East Helena, Saturday, 22 August
Clear. High 101°, low 61°.
0East Helena, Sunday, 23 August
Clear. High 100°, low 66°.
0East Helena, Monday, 24 August
Clear. High 102°, low 67°.
0.03
East Helena, Tuesday, 25 August
Climate normal for this date — 60-year average.
0.03East Helena, Wednesday, 26 August
Climate normal for this date — 60-year average.
0.04East Helena, Thursday, 27 August
Climate normal for this date — 60-year average.
0.07East Helena, Friday, 28 August
Climate normal for this date — 60-year average.
0.04East Helena, Saturday, 29 August
Climate normal for this date — 60-year average.
0.06East Helena, Sunday, 30 August
Climate normal for this date — 60-year average.
0.06East Helena, Monday, 31 August
Climate normal for this date — 60-year average.
0.06East Helena, Tuesday, 1 September
Climate normal for this date — 60-year average.
0.04East Helena, Wednesday, 2 September
Climate normal for this date — 60-year average.
0.02East Helena, Thursday, 3 September
Climate normal for this date — 60-year average.
0.05East Helena, Friday, 4 September
Climate normal for this date — 60-year average.
0.06East Helena, Saturday, 5 September
Climate normal for this date — 60-year average.
0.05East Helena, Sunday, 6 September
Climate normal for this date — 60-year average.
0.07East Helena, 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 East Helena, 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 East Helena, 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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