Weather in East Portal, MT
East Portal, Sunday, 9 August, 09:16
Clear. Feels like 50°. High 80°, low 47°.
Monthly outlook for East Portal, MT: average high 83.9°, average low 53.7°. That is 3.1° above the climate normal for August. Precipitation is expected on 0 days (about 0.0 inches), against a normal of 3 days and 0.8 inches. The warmest day looks like 24 August (95°), the coolest 10 August (46°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 9 August – 18 August | 80.8° | 79.4° | +0.8° |
| 19 August – 28 August | 89° | 76.4° | +7° |
| 29 August – 7 September | at normal | 74° | — |
August records over 66 years
Climate normals and records are computed from the nearest reference point — Mullan (9 mi).
0East Portal, Monday, 10 August
Clear. High 77°, low 46°.
0East Portal, Tuesday, 11 August
Clear. High 82°, low 52°.
0
East Portal, Wednesday, 12 August
Overcast. High 81°, low 52°.
0.02
East Portal, Thursday, 13 August
Light rain. High 76°, low 48°.
0East Portal, Friday, 14 August
Clear. High 80°, low 47°.
0
East Portal, Saturday, 15 August
Mostly clear. High 86°, low 52°.
0
East Portal, Sunday, 16 August
Partly cloudy. High 89°, low 58°.
0East Portal, Monday, 17 August
Overcast. High 79°, low 59°.
0East Portal, Tuesday, 18 August
Clear. High 78°, low 51°.
0East Portal, Wednesday, 19 August
Clear. High 84°, low 54°.
0East Portal, Thursday, 20 August
Clear. High 87°, low 58°.
0East Portal, Friday, 21 August
Partly cloudy. High 86°, low 58°.
0East Portal, Saturday, 22 August
Mostly clear. High 90°, low 56°.
0East Portal, Sunday, 23 August
Clear. High 92°, low 60°.
0East Portal, Monday, 24 August
Overcast. High 95°, low 61°.
0.05East Portal, Tuesday, 25 August
Climate normal for this date — 60-year average.
0.05East Portal, Wednesday, 26 August
Climate normal for this date — 60-year average.
0.05East Portal, Thursday, 27 August
Climate normal for this date — 60-year average.
0.03East Portal, Friday, 28 August
Climate normal for this date — 60-year average.
0.03East Portal, Saturday, 29 August
Climate normal for this date — 60-year average.
0.06East Portal, Sunday, 30 August
Climate normal for this date — 60-year average.
0.06East Portal, Monday, 31 August
Climate normal for this date — 60-year average.
0.05East Portal, Tuesday, 1 September
Climate normal for this date — 60-year average.
0.06East Portal, Wednesday, 2 September
Climate normal for this date — 60-year average.
0.04East Portal, Thursday, 3 September
Climate normal for this date — 60-year average.
0.04East Portal, Friday, 4 September
Climate normal for this date — 60-year average.
0.04East Portal, Saturday, 5 September
Climate normal for this date — 60-year average.
0.06East Portal, Sunday, 6 September
Climate normal for this date — 60-year average.
0.04East Portal, 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 Portal, 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 Portal, 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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