Weather in Iron, MT
Iron, Thursday, 8 October, 01:50
Clear. Feels like 49°. High 77°, low 43°.
Monthly outlook for Iron, MT: average high 52.2°, average low 32.6°. That is 2° below the climate normal for October. Precipitation is expected on 4 days (about 0.8 inches), against a normal of 4 days and 0.7 inches. The warmest day looks like 9 October (77.7°), the coolest 13 October (21.8°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 8 October – 17 October | 50.9° | 56.2° | -3° |
| 18 October – 27 October | 54.3° | 53.4° | +0.5° |
| 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 78°, low 46°.
0.46
Iron, Saturday, 10 October
Snow. High 52°, low 30°.
0.24Iron, Sunday, 11 October
Snow. High 30°, low 27°.
0.01Iron, Monday, 12 October
Light snow. High 33°, low 27°.
0
Iron, Tuesday, 13 October
Clear. High 50°, low 22°.
0.07Iron, Wednesday, 14 October
Light snow. High 49°, low 34°.
0.04Iron, Thursday, 15 October
Light snow. High 37°, low 27°.
0Iron, Friday, 16 October
Clear. High 48°, low 22°.
0Iron, Saturday, 17 October
Overcast. High 56°, low 27°.
0Iron, Sunday, 18 October
Overcast. High 62°, low 34°.
0Iron, Monday, 19 October
Overcast. High 52°, low 35°.
0
Iron, Tuesday, 20 October
Partly cloudy. High 63°, low 36°.
0.02
Iron, Wednesday, 21 October
Light rain. High 59°, low 43°.
0Iron, Thursday, 22 October
Overcast. High 46°, low 37°.
0Iron, Friday, 23 October
Partly cloudy. High 43°, low 32°.
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.
0.03
Iron, 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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