Weather in Round Butte, MT
Round Butte, Sunday, 18 October, 12:09
Clear. Feels like 55°. High 60°, low 35°.
Monthly outlook for Round Butte, MT: average high 47°, average low 32.4°. That is 1.8° below the climate normal for October. Precipitation is expected on 7 days (about 1.3 inches), against a normal of 7 days and 1.6 inches. The warmest day looks like 19 October (64.8°), the coolest 30 October (16.3°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 18 October – 27 October | 53.3° | 52.4° | +0.5° |
| 28 October – 6 November | 36.5° | 46° | -5.3° |
| 7 November – 16 November | at normal | 41.9° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Turtle Lake (13 mi).
0
Round Butte, Monday, 19 October
Overcast. High 65°, low 29°.
0
Round Butte, Tuesday, 20 October
Partly cloudy. High 64°, low 39°.
0Round Butte, Wednesday, 21 October
Partly cloudy. High 63°, low 42°.
0.06
Round Butte, Thursday, 22 October
Light rain. High 58°, low 45°.
0.09Round Butte, Friday, 23 October
Light rain. High 49°, low 41°.
0Round Butte, Saturday, 24 October
Overcast. High 46°, low 35°.
0.06Round Butte, Sunday, 25 October
Light rain. High 47°, low 37°.
0.22Round Butte, Monday, 26 October
Light rain. High 42°, low 37°.
0.46
Round Butte, Tuesday, 27 October
Snow. High 38°, low 34°.
0.03Round Butte, Wednesday, 28 October
Light snow. High 43°, low 30°.
0.12Round Butte, Thursday, 29 October
Snow. High 34°, low 24°.
0
Round Butte, Friday, 30 October
Mostly clear. High 31°, low 16°.
0Round Butte, Saturday, 31 October
Mostly clear. High 34°, low 20°.
0.04Round Butte, Sunday, 1 November
Light snow. High 36°, low 23°.
0.22Round Butte, Monday, 2 November
Snow. High 41°, low 32°.
0.07
Round Butte, Tuesday, 3 November
Climate normal for this date — 60-year average.
0.14Round Butte, Wednesday, 4 November
Climate normal for this date — 60-year average.
0.12Round Butte, Thursday, 5 November
Climate normal for this date — 60-year average.
0.14Round Butte, Friday, 6 November
Climate normal for this date — 60-year average.
0.15Round Butte, Saturday, 7 November
Climate normal for this date — 60-year average.
0.1Round Butte, Sunday, 8 November
Climate normal for this date — 60-year average.
0.12Round Butte, Monday, 9 November
Climate normal for this date — 60-year average.
0.1Round Butte, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.11Round Butte, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.11Round Butte, Thursday, 12 November
Climate normal for this date — 60-year average.
0.09Round Butte, Friday, 13 November
Climate normal for this date — 60-year average.
0.11Round Butte, Saturday, 14 November
Climate normal for this date — 60-year average.
0.06Round Butte, Sunday, 15 November
Climate normal for this date — 60-year average.
0.13Round Butte, 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 Round Butte, 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 Round Butte, 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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