Weather in Great Falls, MT
Great Falls, Friday, 30 October, 17:46
Fog. Feels like 30°. High 37°, low 33°.
Monthly outlook for Great Falls, MT: average high 52.3°, average low 35.9°. That is 3.1° above the climate normal for October. Precipitation is expected on 2 days (about 0.4 inches), against a normal of 3 days and 0.5 inches. The warmest day looks like 9 November (64.2°), the coolest 31 October (31.4°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 30 October – 8 November | 50.4° | 48.2° | +1.2° |
| 9 November – 18 November | 55.4° | 44.2° | +6.2° |
| 19 November – 28 November | at normal | 38.8° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Ulm (12 mi).
0.01
Great Falls, Saturday, 31 October
Light rain. High 49°, low 31°.
0.31Great Falls, Sunday, 1 November
Rain. High 43°, low 35°.
0.08Great Falls, Monday, 2 November
Light rain. High 52°, low 36°.
0
Great Falls, Tuesday, 3 November
Overcast. High 54°, low 35°.
0
Great Falls, Wednesday, 4 November
Clear. High 49°, low 32°.
0Great Falls, Thursday, 5 November
Overcast. High 55°, low 32°.
0Great Falls, Friday, 6 November
Clear. High 56°, low 38°.
0Great Falls, Saturday, 7 November
Clear. High 51°, low 35°.
0Great Falls, Sunday, 8 November
Overcast. High 58°, low 37°.
0Great Falls, Monday, 9 November
Overcast. High 64°, low 41°.
0Great Falls, Tuesday, 10 November
Overcast. High 54°, low 43°.
0Great Falls, Wednesday, 11 November
Overcast. High 58°, low 41°.
0Great Falls, Thursday, 12 November
Overcast. High 49°, low 38°.
0
Great Falls, Friday, 13 November
Partly cloudy. High 54°, low 33°.
0Great Falls, Saturday, 14 November
Overcast. High 53°, low 36°.
0.01
Great Falls, Sunday, 15 November
Climate normal for this date — 60-year average.
0.02Great Falls, Monday, 16 November
Climate normal for this date — 60-year average.
0.04Great Falls, Tuesday, 17 November
Climate normal for this date — 60-year average.
0.04Great Falls, Wednesday, 18 November
Climate normal for this date — 60-year average.
0.04Great Falls, Thursday, 19 November
Climate normal for this date — 60-year average.
0.02Great Falls, Friday, 20 November
Climate normal for this date — 60-year average.
0.02Great Falls, Saturday, 21 November
Climate normal for this date — 60-year average.
0.03Great Falls, Sunday, 22 November
Climate normal for this date — 60-year average.
0.01Great Falls, Monday, 23 November
Climate normal for this date — 60-year average.
0.03Great Falls, Tuesday, 24 November
Climate normal for this date — 60-year average.
0.06Great Falls, Wednesday, 25 November
Climate normal for this date — 60-year average.
0.05Great Falls, Thursday, 26 November
Climate normal for this date — 60-year average.
0.03Great Falls, Friday, 27 November
Climate normal for this date — 60-year average.
0.04Great Falls, Saturday, 28 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 Great Falls, 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 Great Falls, 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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