Weather in Greenough, MT
Greenough, Sunday, 18 October, 08:30
Partly cloudy. Feels like 37°. High 63°, low 36°.
Monthly outlook for Greenough, MT: average high 48.6°, average low 28.6°. That is 1.2° below the climate normal for October. Precipitation is expected on 6 days (about 0.9 inches), against a normal of 5 days and 0.9 inches. The warmest day looks like 19 October (64.6°), the coolest 30 October (9.5°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 18 October – 27 October | 54.9° | 53° | +1° |
| 28 October – 6 November | 38.2° | 46.3° | -4.5° |
| 7 November – 16 November | at normal | 41.8° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Potomac (7 mi).
0Greenough, Monday, 19 October
Partly cloudy. High 65°, low 32°.
0
Greenough, Tuesday, 20 October
Overcast. High 63°, low 39°.
0Greenough, Wednesday, 21 October
Partly cloudy. High 63°, low 36°.
0.04
Greenough, Thursday, 22 October
Light rain. High 64°, low 41°.
0.07Greenough, Friday, 23 October
Light rain. High 44°, low 36°.
0Greenough, Saturday, 24 October
Overcast. High 48°, low 30°.
0Greenough, Sunday, 25 October
Overcast. High 54°, low 33°.
0Greenough, Monday, 26 October
Overcast. High 48°, low 35°.
0.5
Greenough, Tuesday, 27 October
Snow. High 37°, low 32°.
0.04Greenough, Wednesday, 28 October
Light snow. High 42°, low 22°.
0.15Greenough, Thursday, 29 October
Light snow. High 35°, low 20°.
0Greenough, Friday, 30 October
Overcast. High 32°, low 10°.
0Greenough, Saturday, 31 October
Overcast. High 37°, low 10°.
0Greenough, Sunday, 1 November
Light snow. High 39°, low 14°.
0.11Greenough, Monday, 2 November
Light snow. High 44°, low 32°.
0.03Greenough, Tuesday, 3 November
Climate normal for this date — 60-year average.
0.07
Greenough, Wednesday, 4 November
Climate normal for this date — 60-year average.
0.07Greenough, Thursday, 5 November
Climate normal for this date — 60-year average.
0.07Greenough, Friday, 6 November
Climate normal for this date — 60-year average.
0.09Greenough, Saturday, 7 November
Climate normal for this date — 60-year average.
0.06Greenough, Sunday, 8 November
Climate normal for this date — 60-year average.
0.06Greenough, Monday, 9 November
Climate normal for this date — 60-year average.
0.04Greenough, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.06Greenough, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.06Greenough, Thursday, 12 November
Climate normal for this date — 60-year average.
0.07Greenough, Friday, 13 November
Climate normal for this date — 60-year average.
0.06Greenough, Saturday, 14 November
Climate normal for this date — 60-year average.
0.02
Greenough, Sunday, 15 November
Climate normal for this date — 60-year average.
0.07Greenough, Monday, 16 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 Greenough, 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 Greenough, 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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