Weather in Indian Arrow, MT
Indian Arrow, Tuesday, 20 October, 07:42
Mostly clear. Feels like 39°. High 66°, low 42°.
Monthly outlook for Indian Arrow, MT: average high 55.2°, average low 36.5°. That is 0.4° below the climate normal for October. Precipitation is expected on 1 day (about 0.4 inches), against a normal of 3 days and 0.5 inches. The warmest day looks like 22 October (72.3°), the coolest 27 October (25°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 20 October – 29 October | 53.7° | 58° | -2.3° |
| 30 October – 8 November | 57.7° | 51.7° | +3.3° |
| 9 November – 18 November | at normal | 47.2° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Huntley (10 mi).
0
Indian Arrow, Wednesday, 21 October
Clear. High 69°, low 39°.
0Indian Arrow, Thursday, 22 October
Clear. High 72°, low 46°.
0.34
Indian Arrow, Friday, 23 October
Rain. High 58°, low 41°.
0.01Indian Arrow, Saturday, 24 October
Light rain. High 48°, low 33°.
0Indian Arrow, Sunday, 25 October
Clear. High 50°, low 32°.
0Indian Arrow, Monday, 26 October
Mostly clear. High 37°, low 28°.
0Indian Arrow, Tuesday, 27 October
Mostly clear. High 46°, low 25°.
0
Indian Arrow, Wednesday, 28 October
Overcast. High 44°, low 32°.
0Indian Arrow, Thursday, 29 October
Clear. High 47°, low 29°.
0Indian Arrow, Friday, 30 October
Mostly clear. High 58°, low 31°.
0Indian Arrow, Saturday, 31 October
Clear. High 50°, low 39°.
0Indian Arrow, Sunday, 1 November
Mostly clear. High 59°, low 36°.
0Indian Arrow, Monday, 2 November
Overcast. High 61°, low 46°.
0Indian Arrow, Tuesday, 3 November
Overcast. High 60°, low 44°.
0Indian Arrow, Wednesday, 4 November
Clear. High 57°, low 41°.
0.04
Indian Arrow, Thursday, 5 November
Climate normal for this date — 60-year average.
0.03Indian Arrow, Friday, 6 November
Climate normal for this date — 60-year average.
0.03Indian Arrow, Saturday, 7 November
Climate normal for this date — 60-year average.
0.04Indian Arrow, Sunday, 8 November
Climate normal for this date — 60-year average.
0.06Indian Arrow, Monday, 9 November
Climate normal for this date — 60-year average.
0.04Indian Arrow, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.02Indian Arrow, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.03Indian Arrow, Thursday, 12 November
Climate normal for this date — 60-year average.
0.03Indian Arrow, Friday, 13 November
Climate normal for this date — 60-year average.
0.03Indian Arrow, Saturday, 14 November
Climate normal for this date — 60-year average.
0.02Indian Arrow, Sunday, 15 November
Climate normal for this date — 60-year average.
0.02Indian Arrow, Monday, 16 November
Climate normal for this date — 60-year average.
0.02Indian Arrow, Tuesday, 17 November
Climate normal for this date — 60-year average.
0.04Indian Arrow, Wednesday, 18 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 Indian Arrow, 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 Indian Arrow, 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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