Weather in Henderson, MT
Henderson, Thursday, 15 October, 02:29
Clear. Feels like 47°. High 55°, low 33°.
Monthly outlook for Henderson, MT: average high 53.2°, average low 33.8°. That is 1° below the climate normal for October. Precipitation is expected on 3 days (about 0.5 inches), against a normal of 6 days and 1.2 inches. The warmest day looks like 19 October (67.3°), the coolest 24 October (24.9°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 15 October – 24 October | 56.4° | 57.3° | -0.5° |
| 25 October – 3 November | 47.7° | 50.4° | -1.5° |
| 4 November – 13 November | at normal | 46° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — St. Regis (10 mi).
0
Henderson, Friday, 16 October
Overcast. High 61°, low 35°.
0
Henderson, Saturday, 17 October
Partly cloudy. High 64°, low 34°.
0
Henderson, Sunday, 18 October
Clear. High 61°, low 32°.
0Henderson, Monday, 19 October
Partly cloudy. High 67°, low 39°.
0Henderson, Tuesday, 20 October
Overcast. High 66°, low 44°.
0.01
Henderson, Wednesday, 21 October
Light rain. High 60°, low 41°.
0.06Henderson, Thursday, 22 October
Light rain. High 49°, low 39°.
0.12
Henderson, Friday, 23 October
Light snow. High 37°, low 28°.
0Henderson, Saturday, 24 October
Partly cloudy. High 45°, low 25°.
0.02Henderson, Sunday, 25 October
Snow. High 43°, low 31°.
0
Henderson, Monday, 26 October
Mostly clear. High 49°, low 28°.
0Henderson, Tuesday, 27 October
Overcast. High 53°, low 35°.
0Henderson, Wednesday, 28 October
Clear. High 53°, low 36°.
0Henderson, Thursday, 29 October
Overcast. High 53°, low 34°.
0.31Henderson, Friday, 30 October
Snow. High 36°, low 28°.
0.11
Henderson, Saturday, 31 October
Climate normal for this date — 60-year average.
0.11Henderson, Sunday, 1 November
Climate normal for this date — 60-year average.
0.12Henderson, Monday, 2 November
Climate normal for this date — 60-year average.
0.06Henderson, Tuesday, 3 November
Climate normal for this date — 60-year average.
0.13Henderson, Wednesday, 4 November
Climate normal for this date — 60-year average.
0.12Henderson, Thursday, 5 November
Climate normal for this date — 60-year average.
0.14Henderson, Friday, 6 November
Climate normal for this date — 60-year average.
0.15Henderson, Saturday, 7 November
Climate normal for this date — 60-year average.
0.1Henderson, Sunday, 8 November
Climate normal for this date — 60-year average.
0.09Henderson, Monday, 9 November
Climate normal for this date — 60-year average.
0.07Henderson, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.09Henderson, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.11Henderson, Thursday, 12 November
Climate normal for this date — 60-year average.
0.1Henderson, Friday, 13 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 Henderson, 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 Henderson, 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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