As of 15:58 MDT

Weather in Eureka, MT

57°Current weather

Eureka, Wednesday, 14 October, 15:58

Clear. Feels like 54°. High 57°, low 38°.

Pressure30.15 inHg
Wind3 mph NE
Humidity51%
Visibility6.2 mi
Dew point39°

Monthly outlook for Eureka, MT: average high 57.2°, average low 38.9°. That is 3.5° above the climate normal for October. Precipitation is expected on 2 days (about 0.2 inches), against a normal of 5 days and 1.0 inches. The warmest day looks like 16 October (66.9°), the coolest 24 October (31.4°).

57.2°/38.9°
Average high / low
+3.5°
Above normal
2 / 5
Wet days / normal
0.2 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
14 October – 23 October58°52.9°+2.8°
24 October – 2 November56°46.3°+5.4°
3 November – 12 Novemberat normal41.4°—

October records over 66 years

84.2°2 October 1992All-time high
0.3°30 October 1991All-time low
Thu, 1557° / 33°0Clear
57 °Clear

Eureka, Thursday, 15 October

Clear. High 57°, low 33°.

Pressure30.68 inHg
Wind2.2 mph NW
Humidity68%
Visibility6.2 mi
Dew point39°
Fri, 1667° / 39°0Overcast
67 °Overcast

Eureka, Friday, 16 October

Overcast. High 67°, low 39°.

Pressure30.39 inHg
Wind3.6 mph SE
Humidity41%
Visibility6.2 mi
Dew point34°
Sat, 1765° / 46°0Partly cloudy
65 °Partly cloudy

Eureka, Saturday, 17 October

Partly cloudy. High 65°, low 46°.

Pressure29.94 inHg
Wind10.6 mph SE
Humidity31%
Visibility6.2 mi
Dew point33°
Sun, 1858° / 42°0Clear
58 °Clear

Eureka, Sunday, 18 October

Clear. High 58°, low 42°.

Pressure30.18 inHg
Wind1.6 mph N
Humidity53%
Visibility1.5 mi
Dew point36°
Mon, 1961° / 42°0Overcast
61 °Overcast

Eureka, Monday, 19 October

Overcast. High 61°, low 42°.

Pressure30.03 inHg
Wind2.3 mph N
Humidity67%
Visibility—
Dew point40°
Tue, 2057° / 42°0Partly cloudy
57 °Partly cloudy

Eureka, Tuesday, 20 October

Partly cloudy. High 57°, low 42°.

Pressure30.00 inHg
Wind4.1 mph N
Humidity49%
Visibility—
Dew point33°
Wed, 2158° / 36°0Mostly clear
58 °Mostly clear

Eureka, Wednesday, 21 October

Mostly clear. High 58°, low 36°.

Pressure30.03 inHg
Wind5.5 mph S
Humidity48%
Visibility—
Dew point31°
Thu, 2254° / 38°0.01Light rain
54 °Light rain

Eureka, Thursday, 22 October

Light rain. High 54°, low 38°.

Pressure29.91 inHg
Wind4.2 mph SW
Humidity45%
Visibility—
Dew point29°
Fri, 2345° / 37°0.11Snow
45 °Snow

Eureka, Friday, 23 October

Snow. High 45°, low 37°.

Pressure30.39 inHg
Wind4.1 mph NW
Humidity85%
Visibility—
Dew point36°
Sat, 2450° / 31°0Partly cloudy
50 °Partly cloudy

Eureka, Saturday, 24 October

Partly cloudy. High 50°, low 31°.

Pressure30.50 inHg
Wind2.1 mph E
Humidity64%
Visibility—
Dew point30°
Sun, 2555° / 34°0Overcast
55 °Overcast

Eureka, Sunday, 25 October

Overcast. High 55°, low 34°.

Pressure30.47 inHg
Wind2 mph SE
Humidity46%
Visibility—
Dew point26°
Mon, 2656° / 37°0Overcast
56 °Overcast

Eureka, Monday, 26 October

Overcast. High 56°, low 37°.

Pressure30.21 inHg
Wind4 mph S
Humidity44%
Visibility—
Dew point27°
Tue, 2758° / 39°0Overcast
58 °Overcast

Eureka, Tuesday, 27 October

Overcast. High 58°, low 39°.

Pressure30.00 inHg
Wind6.1 mph S
Humidity44%
Visibility—
Dew point29°
Wed, 2858° / 41°0Partly cloudy
58 °Partly cloudy

Eureka, Wednesday, 28 October

Partly cloudy. High 58°, low 41°.

Pressure29.85 inHg
Wind4.5 mph S
Humidity58%
Visibility—
Dew point39°
Thu, 2958° / 47°0.12Light rain
58 °Light rain

Eureka, Thursday, 29 October

Light rain. High 58°, low 47°.

Pressure29.83 inHg
Wind5.3 mph SE
Humidity85%
Visibility—
Dew point49°
From day 17 onward the outlook is built from 60-year climate statistics
Fri, 3044° / 31°0.06Climate normal
44 °Climate normal

Eureka, Friday, 30 October

Climate normal for this date — 60-year average.

Average high44°
Average low31°
Average precipitation0.06 in
Chance of precipitation32%
Record high64° (1983)
Record low0° (1991)
Sat, 3144° / 32°0.1Climate normal
44 °Climate normal

Eureka, Saturday, 31 October

Climate normal for this date — 60-year average.

Average high44°
Average low32°
Average precipitation0.1 in
Chance of precipitation38%
Record high63° (2008)
Record low2° (1984)
Sun, 0144° / 32°0.09Climate normal
44 °Climate normal

Eureka, Sunday, 1 November

Climate normal for this date — 60-year average.

Average high44°
Average low32°
Average precipitation0.09 in
Chance of precipitation38%
Record high61° (2008)
Record low0° (1991)
Mon, 0244° / 31°0.1Climate normal
44 °Climate normal

Eureka, Monday, 2 November

Climate normal for this date — 60-year average.

Average high44°
Average low31°
Average precipitation0.1 in
Chance of precipitation37%
Record high60° (2020)
Record low-1° (1991)
Tue, 0344° / 32°0.06Climate normal
44 °Climate normal

Eureka, Tuesday, 3 November

Climate normal for this date — 60-year average.

Average high44°
Average low32°
Average precipitation0.06 in
Chance of precipitation32%
Record high60° (1981)
Record low11° (1991)
Wed, 0443° / 33°0.11Climate normal
43 °Climate normal

Eureka, Wednesday, 4 November

Climate normal for this date — 60-year average.

Average high43°
Average low33°
Average precipitation0.11 in
Chance of precipitation47%
Record high62° (1975)
Record low9° (2017)
Thu, 0543° / 31°0.07Climate normal
43 °Climate normal

Eureka, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high43°
Average low31°
Average precipitation0.07 in
Chance of precipitation43%
Record high62° (1975)
Record low8° (1967)
Fri, 0642° / 30°0.1Climate normal
42 °Climate normal

Eureka, Friday, 6 November

Climate normal for this date — 60-year average.

Average high42°
Average low30°
Average precipitation0.1 in
Chance of precipitation47%
Record high56° (2010)
Record low7° (1971)
Sat, 0741° / 29°0.09Climate normal
41 °Climate normal

Eureka, Saturday, 7 November

Climate normal for this date — 60-year average.

Average high41°
Average low29°
Average precipitation0.09 in
Chance of precipitation48%
Record high55° (1999)
Record low6° (2017)
Sun, 0841° / 29°0.07Climate normal
41 °Climate normal

Eureka, Sunday, 8 November

Climate normal for this date — 60-year average.

Average high41°
Average low29°
Average precipitation0.07 in
Chance of precipitation40%
Record high56° (2016)
Record low0° (2022)
Mon, 0941° / 29°0.08Climate normal
41 °Climate normal

Eureka, Monday, 9 November

Climate normal for this date — 60-year average.

Average high41°
Average low29°
Average precipitation0.08 in
Chance of precipitation42%
Record high59° (2016)
Record low1° (1986)
Tue, 1039° / 28°0.07Climate normal
39 °Climate normal

Eureka, Tuesday, 10 November

Climate normal for this date — 60-year average.

Average high39°
Average low28°
Average precipitation0.07 in
Chance of precipitation40%
Record high57° (2016)
Record low-4° (1986)
Wed, 1140° / 27°0.07Climate normal
40 °Climate normal

Eureka, Wednesday, 11 November

Climate normal for this date — 60-year average.

Average high40°
Average low27°
Average precipitation0.07 in
Chance of precipitation42%
Record high55° (2016)
Record low-7° (1985)
Thu, 1240° / 29°0.09Climate normal
40 °Climate normal

Eureka, Thursday, 12 November

Climate normal for this date — 60-year average.

Average high40°
Average low29°
Average precipitation0.09 in
Chance of precipitation40%
Record high56° (2016)
Record low-5° (1986)

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.