Weather in Corvallis, MT
Corvallis, Saturday, 17 October, 01:03
Overcast. Feels like 51°. High 68°, low 37°.
Monthly outlook for Corvallis, MT: average high 58.7°, average low 39.1°. That is 2.9° above the climate normal for October. Precipitation is expected on 2 days (about 0.5 inches), against a normal of 5 days and 1.0 inches. The warmest day looks like 17 October (67.8°), the coolest 25 October (33°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 17 October – 26 October | 59.4° | 55.7° | +2° |
| 27 October – 5 November | 57.6° | 49° | +4.8° |
| 6 November – 15 November | at normal | 44.1° | — |
October records over 66 years
0
Corvallis, Sunday, 18 October
Clear. High 60°, low 37°.
0Corvallis, Monday, 19 October
Overcast. High 67°, low 40°.
0Corvallis, Tuesday, 20 October
Overcast. High 60°, low 44°.
0Corvallis, Wednesday, 21 October
Clear. High 62°, low 43°.
0.46
Corvallis, Thursday, 22 October
Rain. High 63°, low 42°.
0.09Corvallis, Friday, 23 October
Light rain. High 49°, low 41°.
0
Corvallis, Saturday, 24 October
Mostly clear. High 52°, low 34°.
0Corvallis, Sunday, 25 October
Mostly clear. High 55°, low 33°.
0Corvallis, Monday, 26 October
Mostly clear. High 59°, low 40°.
0
Corvallis, Tuesday, 27 October
Partly cloudy. High 63°, low 41°.
0Corvallis, Wednesday, 28 October
Partly cloudy. High 57°, low 40°.
0Corvallis, Thursday, 29 October
Overcast. High 48°, low 38°.
0Corvallis, Friday, 30 October
Mostly clear. High 59°, low 37°.
0Corvallis, Saturday, 31 October
Clear. High 62°, low 39°.
0Corvallis, Sunday, 1 November
Clear. High 56°, low 41°.
0.08
Corvallis, Monday, 2 November
Climate normal for this date — 60-year average.
0.05Corvallis, Tuesday, 3 November
Climate normal for this date — 60-year average.
0.07Corvallis, Wednesday, 4 November
Climate normal for this date — 60-year average.
0.08Corvallis, Thursday, 5 November
Climate normal for this date — 60-year average.
0.09Corvallis, Friday, 6 November
Climate normal for this date — 60-year average.
0.09Corvallis, Saturday, 7 November
Climate normal for this date — 60-year average.
0.08Corvallis, Sunday, 8 November
Climate normal for this date — 60-year average.
0.07Corvallis, Monday, 9 November
Climate normal for this date — 60-year average.
0.05Corvallis, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.06Corvallis, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.07Corvallis, Thursday, 12 November
Climate normal for this date — 60-year average.
0.08Corvallis, Friday, 13 November
Climate normal for this date — 60-year average.
0.07Corvallis, Saturday, 14 November
Climate normal for this date — 60-year average.
0.03Corvallis, Sunday, 15 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 Corvallis, 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 Corvallis, 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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