Weather in Williams, MT
Williams, Saturday, 10 October, 06:29
Overcast. Feels like 37°. High 52°, low 29°.
Monthly outlook for Williams, MT: average high 49.1°, average low 34°. That is 2.6° below the climate normal for October. Precipitation is expected on 3 days (about 1.0 inches), against a normal of 3 days and 0.5 inches. The warmest day looks like 18 October (64.8°), the coolest 13 October (18.3°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 10 October – 19 October | 48° | 54.5° | -3.6° |
| 20 October – 29 October | 51° | 50.8° | +0.1° |
| 30 October – 8 November | at normal | 44.6° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Valier (6 mi).
0.57
Williams, Sunday, 11 October
Snow. High 32°, low 29°.
0.16Williams, Monday, 12 October
Snow. High 32°, low 24°.
0
Williams, Tuesday, 13 October
Mostly clear. High 40°, low 18°.
0
Williams, Wednesday, 14 October
Clear. High 43°, low 29°.
0Williams, Thursday, 15 October
Mostly clear. High 59°, low 32°.
0Williams, Friday, 16 October
Clear. High 41°, low 29°.
0Williams, Saturday, 17 October
Mostly clear. High 57°, low 29°.
0Williams, Sunday, 18 October
Overcast. High 65°, low 48°.
0Williams, Monday, 19 October
Overcast. High 58°, low 42°.
0Williams, Tuesday, 20 October
Overcast. High 60°, low 47°.
0Williams, Wednesday, 21 October
Overcast. High 52°, low 41°.
0Williams, Thursday, 22 October
Overcast. High 50°, low 38°.
0
Williams, Friday, 23 October
Light rain. High 49°, low 36°.
0Williams, Saturday, 24 October
Overcast. High 50°, low 33°.
0
Williams, Sunday, 25 October
Partly cloudy. High 45°, low 38°.
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.
0.04Williams, Sunday, 8 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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