Weather in Round Butte, MT
Round Butte, Tuesday, 20 October, 02:51
Overcast. Feels like 40°. High 61°, low 38°.
Monthly outlook for Round Butte, MT: average high 52.8°, average low 35.1°. That is 2.1° above the climate normal for October. Precipitation is expected on 2 days (about 0.5 inches), against a normal of 7 days and 1.7 inches. The warmest day looks like 22 October (64.8°), the coolest 28 October (25.9°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 20 October – 29 October | 53.5° | 51° | +1.4° |
| 30 October – 8 November | 51.6° | 45° | +3.7° |
| 9 November – 18 November | at normal | 41.2° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Turtle Lake (13 mi).
0Round Butte, Wednesday, 21 October
Overcast. High 62°, low 37°.
0.08
Round Butte, Thursday, 22 October
Rain. High 65°, low 44°.
0.41Round Butte, Friday, 23 October
Light rain. High 52°, low 46°.
0
Round Butte, Saturday, 24 October
Mostly clear. High 54°, low 41°.
0
Round Butte, Sunday, 25 October
Partly cloudy. High 55°, low 37°.
0
Round Butte, Monday, 26 October
Clear. High 46°, low 28°.
0Round Butte, Tuesday, 27 October
Mostly clear. High 45°, low 27°.
0Round Butte, Wednesday, 28 October
Partly cloudy. High 47°, low 26°.
0Round Butte, Thursday, 29 October
Clear. High 48°, low 27°.
0Round Butte, Friday, 30 October
Overcast. High 49°, low 29°.
0Round Butte, Saturday, 31 October
Overcast. High 50°, low 33°.
0.04Round Butte, Sunday, 1 November
Light rain. High 52°, low 36°.
0Round Butte, Monday, 2 November
Overcast. High 53°, low 36°.
0Round Butte, Tuesday, 3 November
Overcast. High 53°, low 40°.
0Round Butte, Wednesday, 4 November
Overcast. High 51°, low 39°.
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.
0.11
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.
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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