Weather in Henderson, MT
Henderson, Saturday, 10 October, 15:11
Partly cloudy. Feels like 44°. High 47°, low 33°.
Monthly outlook for Henderson, MT: average high 56.5°, average low 35°. That is 0.6° below the climate normal for October. Precipitation is expected on 5 days (about 0.9 inches), against a normal of 5 days and 1.2 inches. The warmest day looks like 25 October (72.1°), the coolest 13 October (23.9°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 10 October – 19 October | 54° | 58.6° | -2.6° |
| 20 October – 29 October | 60.7° | 53.9° | +3.8° |
| 30 October – 8 November | at normal | 48.1° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — St. Regis (10 mi).
0.3
Henderson, Sunday, 11 October
Snow. High 32°, low 28°.
0.07Henderson, Monday, 12 October
Light snow. High 46°, low 27°.
0
Henderson, Tuesday, 13 October
Clear. High 51°, low 24°.
0Henderson, Wednesday, 14 October
Partly cloudy. High 58°, low 30°.
0Henderson, Thursday, 15 October
Clear. High 61°, low 36°.
0
Henderson, Friday, 16 October
Overcast. High 52°, low 35°.
0Henderson, Saturday, 17 October
Overcast. High 64°, low 34°.
0Henderson, Sunday, 18 October
Partly cloudy. High 64°, low 41°.
0Henderson, Monday, 19 October
Overcast. High 65°, low 40°.
0.39
Henderson, Tuesday, 20 October
Rain. High 51°, low 36°.
0.07Henderson, Wednesday, 21 October
Light rain. High 44°, low 34°.
0Henderson, Thursday, 22 October
Overcast. High 55°, low 30°.
0Henderson, Friday, 23 October
Partly cloudy. High 72°, low 39°.
0Henderson, Saturday, 24 October
Overcast. High 70°, low 46°.
0Henderson, Sunday, 25 October
Overcast. High 72°, low 47°.
0.09
Henderson, Monday, 26 October
Climate normal for this date — 60-year average.
0.09Henderson, Tuesday, 27 October
Climate normal for this date — 60-year average.
0.09Henderson, Wednesday, 28 October
Climate normal for this date — 60-year average.
0.1Henderson, Thursday, 29 October
Climate normal for this date — 60-year average.
0.08Henderson, Friday, 30 October
Climate normal for this date — 60-year average.
0.11Henderson, 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.
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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