Warm-summer humid continental climate
Climate Eureka - Montana
Annual high58ºF
Annual low34ºF
Precipitation15.08 inch
| Month | HighºF | LowºF | Precipinch | Snowinch |
|---|---|---|---|---|
| Jan | 32 | 19 | 0.98 | 8 |
| Feb | 39 | 20 | 0.66 | 5 |
| Mar | 49 | 27 | 0.88 | 4 |
| Apr | 60 | 33 | 0.95 | 1 |
| May | 69 | 41 | 1.91 | 0 |
| Jun | 76 | 47 | 2.45 | 0 |
| Jul | 85 | 51 | 1.49 | 0 |
| Aug | 85 | 50 | 1.11 | 0 |
| Sep | 74 | 42 | 1.26 | 0 |
| Oct | 57 | 33 | 1.00 | 0 |
| Nov | 41 | 27 | 1.33 | 6 |
| Dec | 30 | 18 | 1.06 | 10 |
- JanHigh 32ºFLow 19ºFPrecip 0.98 inch
- FebHigh 39ºFLow 20ºFPrecip 0.66 inch
- MarHigh 49ºFLow 27ºFPrecip 0.88 inch
- AprHigh 60ºFLow 33ºFPrecip 0.95 inch
- MayHigh 69ºFLow 41ºFPrecip 1.91 inch
- JunHigh 76ºFLow 47ºFPrecip 2.45 inch
- JulHigh 85ºFLow 51ºFPrecip 1.49 inch
- AugHigh 85ºFLow 50ºFPrecip 1.11 inch
- SepHigh 74ºFLow 42ºFPrecip 1.26 inch
- OctHigh 57ºFLow 33ºFPrecip 1.00 inch
- NovHigh 41ºFLow 27ºFPrecip 1.33 inch
- DecHigh 30ºFLow 18ºFPrecip 1.06 inch
Climate summary
What is the average weather in Eureka, Montana?
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 weather averages
Annual high58ºF
Annual low34ºF
Precipitation15.08 inch
Snowfall34 inch
Daily normals Eureka - Montana - January
| Day | HighºF | LowºF | Prec/ | Prec/ | Snow/ | Snow/ |
|---|---|---|---|---|---|---|
| Jan 1 | 29.9 | 18.8 | 0.04 | 0.04 | 0.40 | 0.40 |
| Jan 2 | 30.0 | 18.7 | 0.08 | 0.08 | 0.70 | 0.70 |
| Jan 3 | 30.1 | 18.7 | 0.11 | 0.11 | 1.10 | 1.10 |
| Jan 4 | 30.2 | 18.7 | 0.15 | 0.15 | 1.40 | 1.40 |
| Jan 5 | 30.3 | 18.8 | 0.19 | 0.19 | 1.80 | 1.80 |
| Jan 6 | 30.5 | 18.8 | 0.22 | 0.22 | 2.20 | 2.20 |
| Jan 7 | 30.6 | 18.8 | 0.26 | 0.26 | 2.50 | 2.50 |
| Jan 8 | 30.8 | 18.8 | 0.29 | 0.29 | 2.90 | 2.90 |
| Jan 9 | 30.9 | 18.9 | 0.33 | 0.33 | 3.20 | 3.20 |
| Jan 10 | 31.1 | 18.9 | 0.37 | 0.37 | 3.50 | 3.50 |
| Jan 11 | 31.3 | 19.0 | 0.40 | 0.40 | 3.90 | 3.90 |
| Jan 12 | 31.4 | 19.0 | 0.43 | 0.43 | 4.20 | 4.20 |
| Jan 13 | 31.6 | 19.1 | 0.46 | 0.46 | 4.40 | 4.40 |
| Jan 14 | 31.8 | 19.1 | 0.49 | 0.49 | 4.70 | 4.70 |
| Jan 15 | 32.0 | 19.2 | 0.52 | 0.52 | 5.00 | 5.00 |
| Jan 16 | 32.2 | 19.3 | 0.55 | 0.55 | 5.20 | 5.20 |
| Jan 17 | 32.4 | 19.3 | 0.58 | 0.58 | 5.50 | 5.50 |
| Jan 18 | 32.6 | 19.4 | 0.60 | 0.60 | 5.70 | 5.70 |
| Jan 19 | 32.8 | 19.4 | 0.63 | 0.63 | 5.90 | 5.90 |
| Jan 20 | 33.0 | 19.5 | 0.65 | 0.65 | 6.20 | 6.20 |
| Jan 21 | 33.2 | 19.6 | 0.68 | 0.68 | 6.40 | 6.40 |
| Jan 22 | 33.4 | 19.6 | 0.70 | 0.70 | 6.60 | 6.60 |
| Jan 23 | 33.6 | 19.7 | 0.73 | 0.73 | 6.80 | 6.80 |
| Jan 24 | 33.8 | 19.7 | 0.75 | 0.75 | 7.00 | 7.00 |
| Jan 25 | 34.0 | 19.8 | 0.77 | 0.77 | 7.20 | 7.20 |
| Jan 26 | 34.2 | 19.8 | 0.80 | 0.80 | 7.40 | 7.40 |
| Jan 27 | 34.4 | 19.9 | 0.82 | 0.82 | 7.70 | 7.70 |
| Jan 28 | 34.5 | 19.9 | 0.85 | 0.85 | 7.90 | 7.90 |
| Jan 29 | 34.7 | 20.0 | 0.87 | 0.87 | 8.10 | 8.10 |
| Jan 30 | 34.9 | 20.0 | 0.90 | 0.90 | 8.30 | 8.30 |
| Jan 31 | 35.1 | 20.0 | 0.92 | 0.92 | 8.50 | 8.50 |
Precipitation and snow add up through the month (/mo) and the year (/yr)
Weather history Eureka - August 2025
| Day | HighºF | LowºF | Precip.inch |
|---|---|---|---|
| Aug 1 | 93.0 | 62.1 | 0.00 |
| Aug 2 | 82.9 | 63.0 | 0.28 |
| Aug 3 | 82.0 | 57.9 | 0.24 |
| Aug 4 | 84.9 | 53.1 | 0.24 |
| Aug 5 | 84.9 | 57.9 | 0.00 |
| Aug 6 | 84.9 | 52.0 | 0.00 |
| Aug 7 | 78.1 | 55.9 | 0.04 |
| Aug 8 | 77.0 | 53.1 | 0.00 |
| Aug 9 | 82.0 | 51.1 | 0.00 |
| Aug 10 | 88.0 | 54.0 | 0.00 |
| Aug 11 | 91.0 | 66.0 | 0.00 |
| Aug 12 | 93.0 | 55.9 | 0.00 |
| Aug 13 | 93.9 | 60.1 | 0.00 |
| Aug 14 | 88.0 | 54.0 | 0.00 |
| Aug 15 | 82.9 | 54.0 | 0.00 |
| Aug 16 | 73.0 | 61.0 | 0.00 |
| Aug 17 | 82.0 | 53.1 | 0.00 |
| Aug 18 | 82.0 | 50.0 | 0.00 |
| Aug 19 | 89.1 | 53.1 | 0.00 |
| Aug 20 | 90.0 | 55.9 | 0.00 |
| Aug 21 | 82.9 | 46.0 | 0.00 |
| Aug 22 | 82.0 | 46.0 | 0.00 |
| Aug 23 | 87.1 | 48.0 | 0.00 |
| Aug 24 | 90.0 | 48.9 | 0.00 |
| Aug 25 | 93.0 | 48.0 | 0.00 |
| Aug 26 | – | – | – |
| Aug 27 | – | – | – |
| Aug 28 | – | – | – |
| Aug 29 | – | – | – |
| Aug 30 | – | – | – |
| Aug 31 | – | – | – |
The data for August 2025 is incomplete: some days or values are missing.
- –No data
- –Not yet observed or received
- TTrace, too small to measure
Observed extremes
- Highest max temperature93.9ºF · Aug 13
- Lowest max temperature73.0ºF · Aug 16
- Highest min temperature66.0ºF · Aug 11
- Lowest min temperature46.0ºF · Aug 21
Geo Eureka - Montana
Location
- Country
- United States
- State
- Montana
- County
- Lincoln
- City
- Eureka
- Zip Code
- 59917
- Elevation
- 2677 ft
- Longitude
- -115.08
- Latitude
- 48.97
- ICAO
- –
- IATA
- –