Climate Eureka - Montana
| JanJa | FebFe | MarMa | AprAp | MayMa | JunJu | |
|---|---|---|---|---|---|---|
| Average high in ºF Av. high Hi | 32 | 39 | 49 | 60 | 69 | 76 |
| Average low in ºF Av. low Lo | 19 | 20 | 27 | 33 | 41 | 47 |
| Av. precipitation in inch Av. precip. Pre. | 0.98 | 0.66 | 0.88 | 0.95 | 1.91 | 2.45 |
| Av. snowfall in inch Snowfall Sn | 8 | 5 | 4 | 1 | 0 | 0 |
| JulJu | AugAu | SepSe | OctOc | NovNo | DecDe | |
|---|---|---|---|---|---|---|
| Average high in ºF Av. high Hi | 85 | 85 | 74 | 57 | 41 | 30 |
| Average low in ºF Av. low Lo | 51 | 50 | 42 | 33 | 27 | 18 |
| Av. precipitation in inch Av. precip. Pre. | 1.49 | 1.11 | 1.26 | 1.00 | 1.33 | 1.06 |
| Av. snowfall in inch Snowfall Sn | 0 | 0 | 0 | 0 | 6 | 10 |
Eureka experiences a humid continental climate, marked by very large seasonal temperature contrasts. Summers are warm and bring the most precipitation, while winters are cold and snowy. Despite the summer moisture, annual precipitation is low overall, with winter moisture often arriving as snow.
Eureka Climate Graph - Montana Climate Chart
Daily normals Eureka - Montana - January
Day | High ºF | Low ºF | Prec/mo inch | Prec/yr inch | Snow/mo inch | Snow/yr inch |
|---|---|---|---|---|---|---|
| 1 Jan | 29.0 | 17.0 | 0.04 | 0.04 | 0.31 | 0.80 |
| 2 Jan | 29.1 | 17.1 | 0.08 | 0.08 | 0.71 | 1.80 |
| 3 Jan | 29.2 | 17.2 | 0.12 | 0.12 | 0.98 | 2.50 |
| 4 Jan | 29.4 | 17.3 | 0.16 | 0.16 | 1.42 | 3.60 |
| 5 Jan | 29.5 | 17.4 | 0.20 | 0.20 | 1.69 | 4.30 |
| 6 Jan | 29.7 | 17.5 | 0.24 | 0.24 | 2.09 | 5.30 |
| 7 Jan | 29.9 | 17.7 | 0.28 | 0.28 | 2.40 | 6.10 |
| 8 Jan | 30.1 | 17.8 | 0.31 | 0.31 | 2.72 | 6.90 |
| 9 Jan | 30.3 | 17.9 | 0.31 | 0.31 | 3.11 | 7.90 |
| 10 Jan | 30.5 | 18.1 | 0.35 | 0.35 | 3.39 | 8.60 |
| 11 Jan | 30.7 | 18.2 | 0.39 | 0.39 | 3.70 | 9.40 |
| 12 Jan | 30.9 | 18.3 | 0.43 | 0.43 | 4.02 | 10.20 |
| 13 Jan | 31.1 | 18.4 | 0.47 | 0.47 | 4.29 | 10.90 |
| 14 Jan | 31.3 | 18.6 | 0.51 | 0.51 | 4.49 | 11.40 |
| 15 Jan | 31.5 | 18.7 | 0.55 | 0.55 | 4.80 | 12.20 |
| 16 Jan | 31.7 | 18.8 | 0.59 | 0.59 | 5.00 | 12.70 |
| 17 Jan | 32.0 | 18.9 | 0.59 | 0.59 | 5.20 | 13.20 |
| 18 Jan | 32.2 | 19.0 | 0.63 | 0.63 | 5.51 | 14.00 |
| 19 Jan | 32.4 | 19.1 | 0.67 | 0.67 | 5.71 | 14.50 |
| 20 Jan | 32.6 | 19.2 | 0.71 | 0.71 | 5.91 | 15.00 |
| 21 Jan | 32.8 | 19.3 | 0.75 | 0.75 | 6.10 | 15.50 |
| 22 Jan | 33.0 | 19.3 | 0.75 | 0.75 | 6.30 | 16.00 |
| 23 Jan | 33.3 | 19.4 | 0.79 | 0.79 | 6.50 | 16.50 |
| 24 Jan | 33.5 | 19.4 | 0.83 | 0.83 | 6.69 | 17.00 |
| 25 Jan | 33.7 | 19.5 | 0.83 | 0.83 | 6.89 | 17.50 |
| 26 Jan | 33.9 | 19.5 | 0.87 | 0.87 | 7.09 | 18.00 |
| 27 Jan | 34.1 | 19.6 | 0.87 | 0.87 | 7.28 | 18.50 |
| 28 Jan | 34.3 | 19.6 | 0.91 | 0.91 | 7.52 | 19.10 |
| 29 Jan | 34.5 | 19.6 | 0.94 | 0.94 | 7.60 | 19.30 |
| 30 Jan | 34.7 | 19.6 | 0.94 | 0.94 | 7.80 | 19.80 |
| 31 Jan | 35.0 | 19.7 | 0.98 | 0.98 | 7.99 | 20.30 |
Weather history Eureka - August 2025
| Day | High ºF | Low ºF | Precip. inch | Snow inch | Snow d. inch |
|---|---|---|---|---|---|
| 01 Aug | 93.0 | 62.1 | 0.00 | 0.00 | 0.0 |
| 02 Aug | 82.9 | 63.0 | 0.28 | 0.00 | 0.0 |
| 03 Aug | 82.0 | 57.9 | 0.24 | 0.00 | 0.0 |
| 04 Aug | 84.9 | 53.1 | 0.24 | 0.00 | 0.0 |
| 05 Aug | 84.9 | 57.9 | 0.00 | 0.00 | 0.0 |
| 06 Aug | 84.9 | 52.0 | 0.00 | 0.00 | 0.0 |
| 07 Aug | 78.1 | 55.9 | 0.04 | 0.00 | 0.0 |
| 08 Aug | 77.0 | 53.1 | 0.00 | 0.00 | 0.0 |
| 09 Aug | 82.0 | 51.1 | 0.00 | 0.00 | 0.0 |
| 10 Aug | 88.0 | 54.0 | 0.00 | 0.00 | 0.0 |
| 11 Aug | 91.0 | 66.0 | 0.00 | 0.00 | 0.0 |
| 12 Aug | 93.0 | 55.9 | 0.00 | 0.00 | 0.0 |
| 13 Aug | 93.9 | 60.1 | 0.00 | 0.00 | 0.0 |
| 14 Aug | 88.0 | 54.0 | 0.00 | 0.00 | 0.0 |
| 15 Aug | 82.9 | 54.0 | 0.00 | 0.00 | 0.0 |
| 16 Aug | 73.0 | 61.0 | 0.00 | 0.00 | 0.0 |
| 17 Aug | 82.0 | 53.1 | 0.00 | 0.00 | 0.0 |
| 18 Aug | 82.0 | 50.0 | 0.00 | 0.00 | 0.0 |
| 19 Aug | 89.1 | 53.1 | 0.00 | 0.00 | 0.0 |
| 20 Aug | 90.0 | 55.9 | 0.00 | 0.00 | 0.0 |
| 21 Aug | 82.9 | 46.0 | 0.00 | 0.00 | 0.0 |
| 22 Aug | 82.0 | 46.0 | 0.00 | 0.00 | 0.0 |
| 23 Aug | 87.1 | 48.0 | 0.00 | 0.00 | 0.0 |
| 24 Aug | 90.0 | 48.9 | 0.00 | 0.00 | 0.0 |
| 25 Aug | 93.0 | 48.0 | 0.00 | 0.00 | 0.0 |
| 26 Aug | - | - | - | - | - |
| 27 Aug | - | - | - | - | - |
| 28 Aug | - | - | - | - | - |
| 29 Aug | - | - | - | - | - |
| 30 Aug | - | - | - | - | - |
| 31 Aug | - | - | - | - | - |
Past weather Eureka
| Aug 25 | Normal | ||
|---|---|---|---|
| Average high temperature Av. high temp. | 85.5 ºF | 32 ºF | |
| Average low temperature Av. low temp. | 54.4 ºF | 19 ºF | |
| Total precipitation Total precip. | 0.80 inch | 0.98 inch | |
| Total snowfall Total snowfall | 0.00 inch | 8 inch | |
| Highest max temperature Highest max temp. | 93.9 ºF | - | |
| Lowest max temperature Lowest max temp. | 73.0 ºF | - | |
| Highest min temperature Highest min temp. | 66.0 ºF | - | |
| Lowest min temperature Lowest min temp. | 46.0 ºF | - | |
Past weather August 2025 incomplete - Missing data
Geo Eureka - Montana
| Country | United States | |
|---|---|---|
| State | Montana | |
| County | Lincoln | |
| City | Eureka | |
| Zip Code | 59917 | |
| Longitude | -115.08 dec. degr. | |
| Latitude | 48.97 dec. degr. | |
| Altitude - Elevation | 2677ft | |
| ICAO | - | |
| IATA | - |
Date and Time Eureka - Montana
| Local Time | 10:10 PM | |
|---|---|---|
| Sunrise | 05:33 AM | |
| Sunset | 09:49 PM | |
| Day/Night | Night | |
| Timezone | Denver -7:00 | |
| Timezone DB | America - Denver |
Map of Eureka - Montana
USGS National Map — Open interactive map
Eureka weather averages
| Annual high temperature | 58ºF |
| Annual low temperature | 34ºF |
| Average annual precip. | 15.08 inch |
| Av. annual snowfall | 34 inch |
Station Data
Monthly averages Eureka
Longitude: -115.076, Latitude: 48.9738
Average weather Eureka, MT - 59917
Monthly: 1991-2020 normals
History: 2007-2025
Abbreviations
Average precipitation in : Av. precipitation in
Jan: January, Feb: February, ...Jan: January, Feb: February, ...Ja: January, Fe: February, ...