Weather in Round Butte, MT
Round Butte, Wednesday, 21 October, 03:46
Mostly clear. Feels like 38°. High 64°, low 37°.
Monthly outlook for Round Butte, MT: average high 42.8°, average low 30.6°. That is 3.1° below the climate normal for October. Precipitation is expected on 4 days (about 1.3 inches), against a normal of 8 days and 1.7 inches. The warmest day looks like 22 October (65°), the coolest 28 October (11.7°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 21 October – 30 October | 46° | 50.1° | -2.3° |
| 31 October – 9 November | 37.5° | 44.6° | -4° |
| 10 November – 19 November | at normal | 40.7° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Turtle Lake (13 mi).
0
Round Butte, Thursday, 22 October
Partly cloudy. High 65°, low 39°.
0.42
Round Butte, Friday, 23 October
Rain. High 53°, low 46°.
0Round Butte, Saturday, 24 October
Partly cloudy. High 54°, low 41°.
0
Round Butte, Sunday, 25 October
Overcast. High 54°, low 39°.
0.03Round Butte, Monday, 26 October
Light rain. High 50°, low 35°.
0.07
Round Butte, Tuesday, 27 October
Light snow. High 31°, low 17°.
0Round Butte, Wednesday, 28 October
Overcast. High 26°, low 12°.
0Round Butte, Thursday, 29 October
Overcast. High 31°, low 20°.
0Round Butte, Friday, 30 October
Overcast. High 32°, low 25°.
0Round Butte, Saturday, 31 October
Overcast. High 35°, low 30°.
0Round Butte, Sunday, 1 November
Overcast. High 37°, low 33°.
0.26Round Butte, Monday, 2 November
Rain. High 40°, low 36°.
0.54Round Butte, Tuesday, 3 November
Snow. High 41°, low 29°.
0Round Butte, Wednesday, 4 November
Overcast. High 36°, low 27°.
0
Round Butte, Thursday, 5 November
Clear. High 36°, low 24°.
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.
0.11
Round 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.
0.11Round Butte, Tuesday, 17 November
Climate normal for this date — 60-year average.
0.12Round Butte, Wednesday, 18 November
Climate normal for this date — 60-year average.
0.11Round Butte, Thursday, 19 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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