Weather in Greenough, MT
Greenough, Tuesday, 20 October, 16:38
Partly cloudy. Feels like 61°. High 63°, low 35°.
Monthly outlook for Greenough, MT: average high 51.1°, average low 29.8°. That is 0.9° above the climate normal for October. Precipitation is expected on 3 days (about 1.0 inches), against a normal of 5 days and 1.0 inches. The warmest day looks like 22 October (63.9°), the coolest 27 October (24.5°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 20 October – 29 October | 53.1° | 51.5° | +0.8° |
| 30 October – 8 November | 47.9° | 45.3° | +1.4° |
| 9 November – 18 November | at normal | 41° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Potomac (7 mi).
0Greenough, Wednesday, 21 October
Partly cloudy. High 63°, low 33°.
0.02
Greenough, Thursday, 22 October
Light rain. High 64°, low 36°.
0.8Greenough, Friday, 23 October
Rain. High 45°, low 37°.
0Greenough, Saturday, 24 October
Partly cloudy. High 47°, low 26°.
0
Greenough, Sunday, 25 October
Mostly clear. High 50°, low 30°.
0
Greenough, Monday, 26 October
Clear. High 46°, low 26°.
0Greenough, Tuesday, 27 October
Clear. High 52°, low 24°.
0
Greenough, Wednesday, 28 October
Overcast. High 47°, low 26°.
0Greenough, Thursday, 29 October
Overcast. High 55°, low 28°.
0Greenough, Friday, 30 October
Mostly clear. High 53°, low 31°.
0Greenough, Saturday, 31 October
Overcast. High 50°, low 30°.
0.15
Greenough, Sunday, 1 November
Snow. High 44°, low 28°.
0Greenough, Monday, 2 November
Overcast. High 48°, low 27°.
0Greenough, Tuesday, 3 November
Overcast. High 46°, low 30°.
0.07Greenough, Wednesday, 4 November
Light rain. High 46°, low 29°.
0.07
Greenough, 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.
0.02Greenough, Sunday, 15 November
Climate normal for this date — 60-year average.
0.07Greenough, Monday, 16 November
Climate normal for this date — 60-year average.
0.06Greenough, Tuesday, 17 November
Climate normal for this date — 60-year average.
0.07Greenough, 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 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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