Weather in Round Butte, MT
Round Butte, Wednesday, 21 October, 16:27
Overcast. Feels like 58°. High 60°, low 35°.
Monthly outlook for Round Butte, MT: average high 54.5°, average low 37.2°. That is 3.4° above the climate normal for October. Precipitation is expected on 1 day (about 0.5 inches), against a normal of 8 days and 1.7 inches. The warmest day looks like 22 October (64.5°), the coolest 26 October (31.9°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 21 October – 30 October | 53.9° | 50.1° | +2.1° |
| 31 October – 9 November | 55.6° | 44.6° | +6.1° |
| 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
Mostly clear. High 65°, low 38°.
0.55
Round Butte, Friday, 23 October
Rain. High 52°, low 42°.
0Round Butte, Saturday, 24 October
Overcast. High 53°, low 37°.
0
Round Butte, Sunday, 25 October
Clear. High 51°, low 37°.
0Round Butte, Monday, 26 October
Mostly clear. High 50°, low 32°.
0Round Butte, Tuesday, 27 October
Mostly clear. High 49°, low 34°.
0Round Butte, Wednesday, 28 October
Overcast. High 50°, low 33°.
0Round Butte, Thursday, 29 October
Overcast. High 51°, low 34°.
0Round Butte, Friday, 30 October
Overcast. High 59°, low 37°.
0Round Butte, Saturday, 31 October
Mostly clear. High 56°, low 40°.
0Round Butte, Sunday, 1 November
Clear. High 54°, low 37°.
0Round Butte, Monday, 2 November
Clear. High 55°, low 37°.
0Round Butte, Tuesday, 3 November
Mostly clear. High 54°, low 37°.
0Round Butte, Wednesday, 4 November
Overcast. High 58°, low 42°.
0Round Butte, Thursday, 5 November
Overcast. High 57°, low 41°.
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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