Weather in Portage, MT
Portage, Wednesday, 21 October, 01:27
Partly cloudy. Feels like 39°. High 67°, low 37°.
Monthly outlook for Portage, MT: average high 55.1°, average low 37.8°. That is 1.4° above the climate normal for October. Precipitation is expected on 1 day (about 0.3 inches), against a normal of 3 days and 0.5 inches. The warmest day looks like 4 November (69.4°), the coolest 25 October (27.3°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 21 October – 30 October | 52.3° | 54.2° | -1.1° |
| 31 October – 9 November | 59.8° | 48.2° | +6.5° |
| 10 November – 19 November | at normal | 44.4° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Carter (12 mi).
0
Portage, Thursday, 22 October
Clear. High 69°, low 45°.
0.31
Portage, Friday, 23 October
Rain. High 52°, low 36°.
0
Portage, Saturday, 24 October
Mostly clear. High 46°, low 28°.
0Portage, Sunday, 25 October
Clear. High 44°, low 27°.
0Portage, Monday, 26 October
Mostly clear. High 41°, low 28°.
0Portage, Tuesday, 27 October
Mostly clear. High 48°, low 33°.
0Portage, Wednesday, 28 October
Clear. High 48°, low 33°.
0Portage, Thursday, 29 October
Clear. High 54°, low 35°.
0
Portage, Friday, 30 October
Overcast. High 54°, low 38°.
0
Portage, Saturday, 31 October
Partly cloudy. High 55°, low 36°.
0Portage, Sunday, 1 November
Clear. High 52°, low 39°.
0Portage, Monday, 2 November
Overcast. High 64°, low 41°.
0Portage, Tuesday, 3 November
Mostly clear. High 69°, low 54°.
0Portage, Wednesday, 4 November
Overcast. High 69°, low 49°.
0Portage, Thursday, 5 November
Overcast. High 50°, low 45°.
0.03Portage, Friday, 6 November
Climate normal for this date — 60-year average.
0.02Portage, Saturday, 7 November
Climate normal for this date — 60-year average.
0.05Portage, Sunday, 8 November
Climate normal for this date — 60-year average.
0.04Portage, Monday, 9 November
Climate normal for this date — 60-year average.
0.03Portage, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.03Portage, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.02Portage, Thursday, 12 November
Climate normal for this date — 60-year average.
0.02Portage, Friday, 13 November
Climate normal for this date — 60-year average.
0.03Portage, Saturday, 14 November
Climate normal for this date — 60-year average.
0.01Portage, Sunday, 15 November
Climate normal for this date — 60-year average.
0.03Portage, Monday, 16 November
Climate normal for this date — 60-year average.
0.04Portage, Tuesday, 17 November
Climate normal for this date — 60-year average.
0.03Portage, Wednesday, 18 November
Climate normal for this date — 60-year average.
0.03Portage, Thursday, 19 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 Portage, 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 Portage, 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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