Weather in Eureka, MT
Eureka, Tuesday, 13 October, 09:06
Partly cloudy. Feels like 35°. High 55°, low 33°.
Monthly outlook for Eureka, MT: average high 55.2°, average low 38.6°. That is 2.1° above the climate normal for October. Precipitation is expected on 2 days (about 0.1 inches), against a normal of 5 days and 1.0 inches. The warmest day looks like 16 October (67°), the coolest 13 October (32.8°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 13 October – 22 October | 56.4° | 53.2° | +1.8° |
| 23 October – 1 November | 53.4° | 47° | +3.6° |
| 2 November – 11 November | at normal | 41.7° | — |
October records over 66 years
0
Eureka, Wednesday, 14 October
Mostly clear. High 60°, low 37°.
0Eureka, Thursday, 15 October
Mostly clear. High 59°, low 39°.
0Eureka, Friday, 16 October
Mostly clear. High 67°, low 42°.
0Eureka, Saturday, 17 October
Partly cloudy. High 64°, low 47°.
0
Eureka, Sunday, 18 October
Clear. High 59°, low 42°.
0
Eureka, Monday, 19 October
Light rain. High 54°, low 40°.
0.02Eureka, Tuesday, 20 October
Light rain. High 49°, low 41°.
0Eureka, Wednesday, 21 October
Clear. High 53°, low 33°.
0.08Eureka, Thursday, 22 October
Light rain. High 43°, low 37°.
0.05
Eureka, Friday, 23 October
Light snow. High 46°, low 40°.
0
Eureka, Saturday, 24 October
Overcast. High 52°, low 36°.
0Eureka, Sunday, 25 October
Partly cloudy. High 55°, low 36°.
0Eureka, Monday, 26 October
Overcast. High 58°, low 38°.
0Eureka, Tuesday, 27 October
Overcast. High 55°, low 39°.
0Eureka, Wednesday, 28 October
Overcast. High 54°, low 38°.
0.08Eureka, Thursday, 29 October
Climate normal for this date — 60-year average.
0.06Eureka, Friday, 30 October
Climate normal for this date — 60-year average.
0.1
Eureka, Saturday, 31 October
Climate normal for this date — 60-year average.
0.09Eureka, Sunday, 1 November
Climate normal for this date — 60-year average.
0.1Eureka, Monday, 2 November
Climate normal for this date — 60-year average.
0.06Eureka, Tuesday, 3 November
Climate normal for this date — 60-year average.
0.11Eureka, Wednesday, 4 November
Climate normal for this date — 60-year average.
0.07Eureka, 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.
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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