Weather in Indian Arrow, MT
Indian Arrow, Tuesday, 20 October, 05:30
Partly cloudy. Feels like 39°. High 68°, low 42°.
Monthly outlook for Indian Arrow, MT: average high 54.8°, average low 35.4°. That is 0.6° below the climate normal for October. Precipitation is expected on 2 days (about 1.0 inches), against a normal of 3 days and 0.5 inches. The warmest day looks like 22 October (71.2°), the coolest 27 October (26°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 20 October – 29 October | 54° | 58° | -2.2° |
| 30 October – 8 November | 56.1° | 51.7° | +2.4° |
| 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 68°, low 39°.
0Indian Arrow, Thursday, 22 October
Clear. High 71°, low 46°.
0.65
Indian Arrow, Friday, 23 October
Rain. High 63°, low 38°.
0.37Indian Arrow, Saturday, 24 October
Rain. High 46°, low 34°.
0Indian Arrow, Sunday, 25 October
Clear. High 51°, low 31°.
0Indian Arrow, Monday, 26 October
Clear. High 40°, low 28°.
0Indian Arrow, Tuesday, 27 October
Clear. High 40°, low 26°.
0Indian Arrow, Wednesday, 28 October
Clear. High 47°, low 28°.
0Indian Arrow, Thursday, 29 October
Clear. High 46°, low 29°.
0
Indian Arrow, Friday, 30 October
Partly cloudy. High 48°, low 30°.
0
Indian Arrow, Saturday, 31 October
Overcast. High 49°, low 34°.
0.02Indian Arrow, Sunday, 1 November
Light rain. High 59°, low 36°.
0Indian Arrow, Monday, 2 November
Overcast. High 61°, low 41°.
0Indian Arrow, Tuesday, 3 November
Partly cloudy. High 61°, low 40°.
0Indian Arrow, Wednesday, 4 November
Overcast. High 58°, low 42°.
0.04Indian Arrow, Thursday, 5 November
Climate normal for this date — 60-year average.
0.03
Indian 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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