Weather in Greenough, MT
Greenough, Saturday, 17 October, 10:56
Partly cloudy. Feels like 49°. High 63°, low 35°.
Monthly outlook for Greenough, MT: average high 51°, average low 32.7°. That is 0.2° below the climate normal for October. Precipitation is expected on 6 days (about 1.1 inches), against a normal of 5 days and 0.9 inches. The warmest day looks like 17 October (63.5°), the coolest 31 October (14°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 17 October – 26 October | 57.7° | 53.7° | +2.2° |
| 27 October – 5 November | 39.9° | 46.9° | -3.9° |
| 6 November – 15 November | at normal | 42.1° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Potomac (7 mi).
0
Greenough, Sunday, 18 October
Clear. High 58°, low 31°.
0Greenough, Monday, 19 October
Partly cloudy. High 63°, low 35°.
0
Greenough, Tuesday, 20 October
Overcast. High 62°, low 40°.
0Greenough, Wednesday, 21 October
Partly cloudy. High 63°, low 37°.
0.02
Greenough, Thursday, 22 October
Light rain. High 58°, low 41°.
0.11Greenough, Friday, 23 October
Light rain. High 57°, low 43°.
0.01Greenough, Saturday, 24 October
Light rain. High 52°, low 41°.
0.2
Greenough, Sunday, 25 October
Snow. High 57°, low 37°.
0.28Greenough, Monday, 26 October
Snow. High 44°, low 36°.
0.17Greenough, Tuesday, 27 October
Snow. High 43°, low 34°.
0.04Greenough, Wednesday, 28 October
Light snow. High 41°, low 29°.
0.12Greenough, Thursday, 29 October
Snow. High 40°, low 31°.
0.19Greenough, Friday, 30 October
Snow. High 37°, low 20°.
0Greenough, Saturday, 31 October
Overcast. High 38°, low 14°.
0Greenough, Sunday, 1 November
Overcast. High 41°, low 21°.
0.07
Greenough, Monday, 2 November
Climate normal for this date — 60-year average.
0.03Greenough, Tuesday, 3 November
Climate normal for this date — 60-year average.
0.07Greenough, 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.
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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