Weather in Iron, MT
Iron, Thursday, 8 October, 15:13
Mostly clear. Feels like 72°. High 73°, low 40°.
Monthly outlook for Iron, MT: average high 52.7°, average low 32.3°. That is 1.7° below the climate normal for October. Precipitation is expected on 3 days (about 0.8 inches), against a normal of 4 days and 0.7 inches. The warmest day looks like 9 October (78.9°), the coolest 16 October (13.7°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 8 October – 17 October | 48.7° | 56.2° | -4.2° |
| 18 October – 27 October | 59.4° | 53.4° | +3.3° |
| 28 October – 6 November | at normal | 46.5° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Helena (7 mi).
0
Iron, Friday, 9 October
Overcast. High 79°, low 46°.
0.09
Iron, Saturday, 10 October
Snow. High 49°, low 32°.
0.39Iron, Sunday, 11 October
Snow. High 32°, low 30°.
0.03Iron, Monday, 12 October
Snow. High 35°, low 29°.
0Iron, Tuesday, 13 October
Mostly clear. High 48°, low 28°.
0.02Iron, Wednesday, 14 October
Light snow. High 49°, low 31°.
0.29Iron, Thursday, 15 October
Snow. High 34°, low 21°.
0
Iron, Friday, 16 October
Clear. High 38°, low 14°.
0Iron, Saturday, 17 October
Clear. High 49°, low 21°.
0Iron, Sunday, 18 October
Clear. High 56°, low 33°.
0Iron, Monday, 19 October
Overcast. High 54°, low 39°.
0Iron, Tuesday, 20 October
Clear. High 61°, low 35°.
0
Iron, Wednesday, 21 October
Partly cloudy. High 62°, low 38°.
0Iron, Thursday, 22 October
Clear. High 65°, low 39°.
0Iron, Friday, 23 October
Overcast. High 58°, low 40°.
0.04Iron, Saturday, 24 October
Climate normal for this date — 60-year average.
0.05Iron, Sunday, 25 October
Climate normal for this date — 60-year average.
0.07Iron, Monday, 26 October
Climate normal for this date — 60-year average.
0.03Iron, Tuesday, 27 October
Climate normal for this date — 60-year average.
0.06Iron, Wednesday, 28 October
Climate normal for this date — 60-year average.
0.05Iron, Thursday, 29 October
Climate normal for this date — 60-year average.
0.03Iron, Friday, 30 October
Climate normal for this date — 60-year average.
0.04Iron, Saturday, 31 October
Climate normal for this date — 60-year average.
0.05Iron, Sunday, 1 November
Climate normal for this date — 60-year average.
0.04Iron, Monday, 2 November
Climate normal for this date — 60-year average.
0.03Iron, Tuesday, 3 November
Climate normal for this date — 60-year average.
0.05Iron, Wednesday, 4 November
Climate normal for this date — 60-year average.
0.04Iron, Thursday, 5 November
Climate normal for this date — 60-year average.
0.05Iron, Friday, 6 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 Iron, 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 Iron, 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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