Weather in Spear, MT
Spear, Thursday, 8 October, 10:50
Clear. Feels like 67°. High 80°, low 45°.
Monthly outlook for Spear, MT: average high 54.5°, average low 38°. That is 2.7° below the climate normal for October. Precipitation is expected on 6 days (about 3.6 inches), against a normal of 4 days and 0.9 inches. The warmest day looks like 9 October (86.7°), the coolest 16 October (16.3°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 8 October – 17 October | 55.5° | 59.9° | -2.4° |
| 18 October – 27 October | 52.8° | 57.6° | -2.7° |
| 28 October – 6 November | at normal | 51° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Forty Mile Colony (6 mi).
0
Spear, Friday, 9 October
Overcast. High 87°, low 47°.
0.07
Spear, Saturday, 10 October
Rain. High 69°, low 49°.
0.39Spear, Sunday, 11 October
Light rain. High 49°, low 40°.
0.49Spear, Monday, 12 October
Rain. High 43°, low 38°.
0Spear, Tuesday, 13 October
Overcast. High 52°, low 38°.
0.24Spear, Wednesday, 14 October
Rain. High 59°, low 47°.
2.09
Spear, Thursday, 15 October
Snow. High 46°, low 32°.
0.01Spear, Friday, 16 October
Light snow. High 34°, low 16°.
0
Spear, Saturday, 17 October
Partly cloudy. High 37°, low 23°.
0Spear, Sunday, 18 October
Overcast. High 40°, low 35°.
0Spear, Monday, 19 October
Clear. High 56°, low 38°.
0
Spear, Tuesday, 20 October
Mostly clear. High 60°, low 44°.
0Spear, Wednesday, 21 October
Partly cloudy. High 58°, low 42°.
0Spear, Thursday, 22 October
Overcast. High 55°, low 38°.
0.27Spear, Friday, 23 October
Snow. High 48°, low 34°.
0.05Spear, Saturday, 24 October
Climate normal for this date — 60-year average.
0.03Spear, Sunday, 25 October
Climate normal for this date — 60-year average.
0.07Spear, Monday, 26 October
Climate normal for this date — 60-year average.
0.05Spear, Tuesday, 27 October
Climate normal for this date — 60-year average.
0.07Spear, Wednesday, 28 October
Climate normal for this date — 60-year average.
0.09Spear, Thursday, 29 October
Climate normal for this date — 60-year average.
0.04Spear, Friday, 30 October
Climate normal for this date — 60-year average.
0.05Spear, Saturday, 31 October
Climate normal for this date — 60-year average.
0.06Spear, Sunday, 1 November
Climate normal for this date — 60-year average.
0.04Spear, Monday, 2 November
Climate normal for this date — 60-year average.
0.03Spear, Tuesday, 3 November
Climate normal for this date — 60-year average.
0.03Spear, Wednesday, 4 November
Climate normal for this date — 60-year average.
0.04Spear, Thursday, 5 November
Climate normal for this date — 60-year average.
0.05Spear, Friday, 6 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 Spear, 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 Spear, 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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