Weather in Williams, MT
Williams, Friday, 9 October, 00:46
Overcast. Feels like 62°. High 74°, low 46°.
Monthly outlook for Williams, MT: average high 50.9°, average low 35.1°. That is 1.8° below the climate normal for October. Precipitation is expected on 3 days (about 0.8 inches), against a normal of 3 days and 0.5 inches. The warmest day looks like 9 October (73.8°), the coolest 13 October (22.1°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 9 October – 18 October | 46.7° | 54.8° | -4.5° |
| 19 October – 28 October | 57.9° | 51.7° | +3.5° |
| 29 October – 7 November | at normal | 45.1° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Valier (6 mi).
0.03
Williams, Saturday, 10 October
Light snow. High 44°, low 34°.
0.32Williams, Sunday, 11 October
Snow. High 33°, low 30°.
0.15Williams, Monday, 12 October
Light snow. High 32°, low 28°.
0
Williams, Tuesday, 13 October
Mostly clear. High 44°, low 22°.
0.02
Williams, Wednesday, 14 October
Light rain. High 50°, low 29°.
0.25Williams, Thursday, 15 October
Snow. High 37°, low 30°.
0
Williams, Friday, 16 October
Clear. High 49°, low 27°.
0Williams, Saturday, 17 October
Overcast. High 52°, low 40°.
0Williams, Sunday, 18 October
Clear. High 52°, low 37°.
0Williams, Monday, 19 October
Clear. High 63°, low 39°.
0Williams, Tuesday, 20 October
Overcast. High 57°, low 42°.
0
Williams, Wednesday, 21 October
Partly cloudy. High 50°, low 39°.
0Williams, Thursday, 22 October
Partly cloudy. High 62°, low 37°.
0Williams, Friday, 23 October
Overcast. High 64°, low 44°.
0Williams, Saturday, 24 October
Partly cloudy. High 51°, low 39°.
0.01Williams, Sunday, 25 October
Climate normal for this date — 60-year average.
0.05Williams, Monday, 26 October
Climate normal for this date — 60-year average.
0.04Williams, Tuesday, 27 October
Climate normal for this date — 60-year average.
0.03Williams, Wednesday, 28 October
Climate normal for this date — 60-year average.
0.04Williams, Thursday, 29 October
Climate normal for this date — 60-year average.
0.02Williams, Friday, 30 October
Climate normal for this date — 60-year average.
0.04Williams, Saturday, 31 October
Climate normal for this date — 60-year average.
0.04Williams, Sunday, 1 November
Climate normal for this date — 60-year average.
0.04Williams, Monday, 2 November
Climate normal for this date — 60-year average.
0.02Williams, Tuesday, 3 November
Climate normal for this date — 60-year average.
0.04Williams, Wednesday, 4 November
Climate normal for this date — 60-year average.
0.03Williams, Thursday, 5 November
Climate normal for this date — 60-year average.
0.04Williams, Friday, 6 November
Climate normal for this date — 60-year average.
0.03Williams, Saturday, 7 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 Williams, 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 Williams, 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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