Weather in Eureka, MT
Eureka, Tuesday, 20 October, 07:12
Overcast. Feels like 32°. High 60°, low 38°.
Monthly outlook for Eureka, MT: average high 54.5°, average low 37.6°. That is 4° above the climate normal for October. Precipitation is expected on 4 days (about 0.5 inches), against a normal of 6 days and 1.3 inches. The warmest day looks like 22 October (65.4°), the coolest 26 October (29.3°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 20 October – 29 October | 55.3° | 49.2° | +3.3° |
| 30 October – 8 November | 53.2° | 43.1° | +5.6° |
| 9 November – 18 November | at normal | 39.2° | — |
October records over 66 years
0
Eureka, Wednesday, 21 October
Mostly clear. High 62°, low 36°.
0Eureka, Thursday, 22 October
Overcast. High 65°, low 45°.
0.15
Eureka, Friday, 23 October
Light rain. High 51°, low 41°.
0Eureka, Saturday, 24 October
Overcast. High 57°, low 39°.
0Eureka, Sunday, 25 October
Mostly clear. High 49°, low 38°.
0
Eureka, Monday, 26 October
Clear. High 50°, low 29°.
0Eureka, Tuesday, 27 October
Mostly clear. High 51°, low 29°.
0Eureka, Wednesday, 28 October
Clear. High 53°, low 31°.
0Eureka, Thursday, 29 October
Overcast. High 54°, low 32°.
0Eureka, Friday, 30 October
Overcast. High 56°, low 35°.
0Eureka, Saturday, 31 October
Mostly clear. High 55°, low 35°.
0
Eureka, Sunday, 1 November
Partly cloudy. High 58°, low 37°.
0.16Eureka, Monday, 2 November
Light rain. High 55°, low 48°.
0.15Eureka, Tuesday, 3 November
Light rain. High 48°, low 45°.
0.05Eureka, Wednesday, 4 November
Light rain. High 47°, low 42°.
0.07
Eureka, Thursday, 5 November
Climate normal for this date — 60-year average.
0.1Eureka, Friday, 6 November
Climate normal for this date — 60-year average.
0.09Eureka, Saturday, 7 November
Climate normal for this date — 60-year average.
0.07Eureka, Sunday, 8 November
Climate normal for this date — 60-year average.
0.08Eureka, Monday, 9 November
Climate normal for this date — 60-year average.
0.07Eureka, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.07Eureka, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.09Eureka, Thursday, 12 November
Climate normal for this date — 60-year average.
0.07Eureka, Friday, 13 November
Climate normal for this date — 60-year average.
0.1Eureka, Saturday, 14 November
Climate normal for this date — 60-year average.
0.06Eureka, Sunday, 15 November
Climate normal for this date — 60-year average.
0.1Eureka, Monday, 16 November
Climate normal for this date — 60-year average.
0.11Eureka, Tuesday, 17 November
Climate normal for this date — 60-year average.
0.1Eureka, Wednesday, 18 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 Eureka, 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 Eureka, 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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