Weather in Greenfield, MT
Greenfield, Thursday, 15 October, 11:00
Clear. Feels like 41°. High 46°, low 34°.
Monthly outlook for Greenfield, MT: average high 48.9°, average low 35.6°. That is 2.4° below the climate normal for October. Precipitation is expected on 4 days (about 1.0 inches), against a normal of 3 days and 0.5 inches. The warmest day looks like 17 October (68.8°), the coolest 30 October (22°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 15 October – 24 October | 57.6° | 55.1° | +1.4° |
| 25 October – 3 November | 34.4° | 48.8° | -8° |
| 4 November – 13 November | at normal | 43.2° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Fairfield (6 mi).
0
Greenfield, Friday, 16 October
Overcast. High 61°, low 38°.
0Greenfield, Saturday, 17 October
Overcast. High 69°, low 49°.
0Greenfield, Sunday, 18 October
Clear. High 59°, low 40°.
0Greenfield, Monday, 19 October
Overcast. High 67°, low 41°.
0Greenfield, Tuesday, 20 October
Overcast. High 65°, low 41°.
0
Greenfield, Wednesday, 21 October
Light rain. High 56°, low 41°.
0Greenfield, Thursday, 22 October
Overcast. High 59°, low 45°.
0
Greenfield, Friday, 23 October
Partly cloudy. High 52°, low 39°.
0
Greenfield, Saturday, 24 October
Mostly clear. High 42°, low 32°.
0.27
Greenfield, Sunday, 25 October
Snow. High 36°, low 31°.
0.19Greenfield, Monday, 26 October
Snow. High 32°, low 30°.
0.41Greenfield, Tuesday, 27 October
Snow. High 34°, low 32°.
0.16Greenfield, Wednesday, 28 October
Snow. High 34°, low 32°.
0Greenfield, Thursday, 29 October
Mostly clear. High 36°, low 23°.
0Greenfield, Friday, 30 October
Overcast. High 35°, low 22°.
0.03Greenfield, Saturday, 31 October
Climate normal for this date — 60-year average.
0.03Greenfield, Sunday, 1 November
Climate normal for this date — 60-year average.
0.03Greenfield, Monday, 2 November
Climate normal for this date — 60-year average.
0.02Greenfield, Tuesday, 3 November
Climate normal for this date — 60-year average.
0.03Greenfield, Wednesday, 4 November
Climate normal for this date — 60-year average.
0.03Greenfield, Thursday, 5 November
Climate normal for this date — 60-year average.
0.03Greenfield, Friday, 6 November
Climate normal for this date — 60-year average.
0.03Greenfield, Saturday, 7 November
Climate normal for this date — 60-year average.
0.04Greenfield, Sunday, 8 November
Climate normal for this date — 60-year average.
0.05Greenfield, Monday, 9 November
Climate normal for this date — 60-year average.
0.02Greenfield, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.02Greenfield, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.02Greenfield, Thursday, 12 November
Climate normal for this date — 60-year average.
0.02Greenfield, Friday, 13 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 Greenfield, 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 Greenfield, 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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