Weather in Tattnall, MT
Tattnall, Thursday, 12 November, 17:38
Overcast. Feels like 38°. High 54°, low 33°.
Monthly outlook for Tattnall, MT: average high 40.3°, average low 29.8°. That is 1.8° above the climate normal for November. Precipitation is expected on 4 days (about 0.5 inches), against a normal of 2 days and 0.3 inches. The warmest day looks like 13 November (56.6°), the coolest 25 November (15.2°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 12 November – 21 November | 47.3° | 39.2° | +4.5° |
| 22 November – 1 December | 28.8° | 33.1° | -2.4° |
| 2 December – 11 December | at normal | 29.5° | — |
November records over 66 years
Climate normals and records are computed from the nearest reference point — Valleytown (15 mi).
0Tattnall, Friday, 13 November
Overcast. High 57°, low 32°.
0Tattnall, Saturday, 14 November
Overcast. High 51°, low 35°.
0
Tattnall, Sunday, 15 November
Clear. High 55°, low 36°.
0
Tattnall, Monday, 16 November
Partly cloudy. High 52°, low 34°.
0.04
Tattnall, Tuesday, 17 November
Light rain. High 48°, low 39°.
0.22Tattnall, Wednesday, 18 November
Light rain. High 39°, low 37°.
0.01Tattnall, Thursday, 19 November
Light rain. High 41°, low 39°.
0.02Tattnall, Friday, 20 November
Light rain. High 38°, low 37°.
0Tattnall, Saturday, 21 November
Overcast. High 38°, low 31°.
0Tattnall, Sunday, 22 November
Overcast. High 38°, low 32°.
0.11
Tattnall, Monday, 23 November
Light snow. High 34°, low 26°.
0Tattnall, Tuesday, 24 November
Light snow. High 24°, low 18°.
0.08Tattnall, Wednesday, 25 November
Light snow. High 25°, low 15°.
0
Tattnall, Thursday, 26 November
Mostly clear. High 24°, low 15°.
0Tattnall, Friday, 27 November
Overcast. High 29°, low 17°.
0.02Tattnall, Saturday, 28 November
Climate normal for this date — 60-year average.
0.02Tattnall, Sunday, 29 November
Climate normal for this date — 60-year average.
0.02Tattnall, Monday, 30 November
Climate normal for this date — 60-year average.
0.03Tattnall, Tuesday, 1 December
Climate normal for this date — 60-year average.
0.03Tattnall, Wednesday, 2 December
Climate normal for this date — 60-year average.
0.02Tattnall, Thursday, 3 December
Climate normal for this date — 60-year average.
0.02Tattnall, Friday, 4 December
Climate normal for this date — 60-year average.
0.02Tattnall, Saturday, 5 December
Climate normal for this date — 60-year average.
0.02Tattnall, Sunday, 6 December
Climate normal for this date — 60-year average.
0.02Tattnall, Monday, 7 December
Climate normal for this date — 60-year average.
0.02Tattnall, Tuesday, 8 December
Climate normal for this date — 60-year average.
0.01Tattnall, Wednesday, 9 December
Climate normal for this date — 60-year average.
0.02Tattnall, Thursday, 10 December
Climate normal for this date — 60-year average.
0.03Tattnall, Friday, 11 December
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 Tattnall, 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 Tattnall, 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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