Dry-winter hot continental climate
Climate Eureka - South Dakota
Annual high55ºF
Annual low32ºF
Precipitation19.74 inch
| Month | HighºF | LowºF | Precipinch | Snowinch |
|---|---|---|---|---|
| Jan | 23 | 4 | 0.33 | 7 |
| Feb | 28 | 9 | 0.47 | 7 |
| Mar | 40 | 20 | 0.91 | 9 |
| Apr | 58 | 32 | 1.66 | 4 |
| May | 69 | 44 | 2.88 | 0 |
| Jun | 78 | 54 | 3.66 | 0 |
| Jul | 85 | 59 | 2.98 | 0 |
| Aug | 83 | 57 | 2.37 | 0 |
| Sep | 73 | 47 | 1.70 | 0 |
| Oct | 58 | 34 | 1.72 | 1 |
| Nov | 39 | 20 | 0.62 | 8 |
| Dec | 26 | 8 | 0.44 | 7 |
- JanHigh 23ºFLow 4ºFPrecip 0.33 inch
- FebHigh 28ºFLow 9ºFPrecip 0.47 inch
- MarHigh 40ºFLow 20ºFPrecip 0.91 inch
- AprHigh 58ºFLow 32ºFPrecip 1.66 inch
- MayHigh 69ºFLow 44ºFPrecip 2.88 inch
- JunHigh 78ºFLow 54ºFPrecip 3.66 inch
- JulHigh 85ºFLow 59ºFPrecip 2.98 inch
- AugHigh 83ºFLow 57ºFPrecip 2.37 inch
- SepHigh 73ºFLow 47ºFPrecip 1.70 inch
- OctHigh 58ºFLow 34ºFPrecip 1.72 inch
- NovHigh 39ºFLow 20ºFPrecip 0.62 inch
- DecHigh 26ºFLow 8ºFPrecip 0.44 inch
Climate summary
What is the average weather in Eureka, South Dakota?
Eureka experiences a humid continental climate, marked by very large seasonal temperature contrasts. Summers are warm, while winters are very cold and bring significant snowfall. The area is dry overall, with most precipitation arriving during the wetter summer months, often as snow in winter.
Eureka weather averages
Annual high55ºF
Annual low32ºF
Precipitation19.74 inch
Snowfall43 inch
Daily normals Eureka - South Dakota - January
| Day | HighºF | LowºF | Prec/ | Prec/ | Snow/ | Snow/ |
|---|---|---|---|---|---|---|
| Jan 1 | 21.0 | 3.5 | 0.02 | 0.02 | 0.30 | 0.30 |
| Jan 2 | 20.9 | 3.3 | 0.03 | 0.03 | 0.50 | 0.50 |
| Jan 3 | 20.8 | 3.1 | 0.05 | 0.05 | 0.80 | 0.80 |
| Jan 4 | 20.6 | 2.9 | 0.07 | 0.07 | 1.10 | 1.10 |
| Jan 5 | 20.5 | 2.7 | 0.08 | 0.08 | 1.40 | 1.40 |
| Jan 6 | 20.4 | 2.6 | 0.10 | 0.10 | 1.60 | 1.60 |
| Jan 7 | 20.4 | 2.4 | 0.12 | 0.12 | 1.90 | 1.90 |
| Jan 8 | 20.3 | 2.2 | 0.13 | 0.13 | 2.20 | 2.20 |
| Jan 9 | 20.2 | 2.1 | 0.15 | 0.15 | 2.40 | 2.40 |
| Jan 10 | 20.2 | 2.0 | 0.16 | 0.16 | 2.70 | 2.70 |
| Jan 11 | 20.1 | 1.8 | 0.17 | 0.17 | 2.90 | 2.90 |
| Jan 12 | 20.1 | 1.7 | 0.19 | 0.19 | 3.20 | 3.20 |
| Jan 13 | 20.1 | 1.6 | 0.20 | 0.20 | 3.40 | 3.40 |
| Jan 14 | 20.1 | 1.5 | 0.21 | 0.21 | 3.70 | 3.70 |
| Jan 15 | 20.1 | 1.4 | 0.22 | 0.22 | 3.90 | 3.90 |
| Jan 16 | 20.1 | 1.3 | 0.23 | 0.23 | 4.10 | 4.10 |
| Jan 17 | 20.1 | 1.3 | 0.24 | 0.24 | 4.30 | 4.30 |
| Jan 18 | 20.2 | 1.2 | 0.25 | 0.25 | 4.50 | 4.50 |
| Jan 19 | 20.2 | 1.2 | 0.26 | 0.26 | 4.60 | 4.60 |
| Jan 20 | 20.3 | 1.1 | 0.27 | 0.27 | 4.80 | 4.80 |
| Jan 21 | 20.3 | 1.1 | 0.27 | 0.27 | 5.00 | 5.00 |
| Jan 22 | 20.4 | 1.1 | 0.28 | 0.28 | 5.20 | 5.20 |
| Jan 23 | 20.5 | 1.1 | 0.29 | 0.29 | 5.40 | 5.40 |
| Jan 24 | 20.6 | 1.2 | 0.30 | 0.30 | 5.50 | 5.50 |
| Jan 25 | 20.6 | 1.2 | 0.31 | 0.31 | 5.70 | 5.70 |
| Jan 26 | 20.8 | 1.3 | 0.32 | 0.32 | 5.90 | 5.90 |
| Jan 27 | 20.9 | 1.3 | 0.33 | 0.33 | 6.10 | 6.10 |
| Jan 28 | 21.0 | 1.4 | 0.33 | 0.33 | 6.30 | 6.30 |
| Jan 29 | 21.1 | 1.5 | 0.34 | 0.34 | 6.50 | 6.50 |
| Jan 30 | 21.2 | 1.6 | 0.35 | 0.35 | 6.70 | 6.70 |
| Jan 31 | 21.4 | 1.7 | 0.36 | 0.36 | 6.90 | 6.90 |
Precipitation and snow add up through the month (/mo) and the year (/yr)
Weather history Eureka - October 2026
| Day | HighºF | LowºF | Precip.inch | Snowinch |
|---|---|---|---|---|
| Oct 1 | 78.1 | 43.0 | 0.00 | 0.00 |
| Oct 2 | 63.0 | 35.1 | 0.00 | 0.00 |
| Oct 3 | 59.0 | 43.0 | 0.00 | 0.00 |
| Oct 4 | – | – | – | – |
| Oct 5 | – | – | – | 0.00 |
| Oct 6 | – | – | – | 0.00 |
| Oct 7 | 79.0 | 37.9 | 0.00 | 0.00 |
| Oct 8 | 73.0 | 37.9 | 0.00 | 0.00 |
| Oct 9 | 70.0 | 37.9 | 0.00 | 0.00 |
| Oct 10 | 75.9 | 46.0 | 0.00 | 0.00 |
| Oct 11 | 86.0 | 46.0 | 0.00 | 0.00 |
| Oct 12 | 53.1 | 43.0 | 0.00 | 0.00 |
| Oct 13 | 46.0 | 39.9 | 0.13 | – |
| Oct 14 | 46.9 | 32.0 | 0.00 | 0.00 |
| Oct 15 | 46.0 | 37.9 | 0.00 | 0.00 |
| Oct 16 | 46.9 | 33.1 | 0.01 | – |
| Oct 17 | 50.0 | 30.0 | – | – |
| Oct 18 | 70.0 | 28.9 | – | 0.00 |
| Oct 19 | 66.0 | 34.0 | – | 0.00 |
| Oct 20 | 64.9 | 37.0 | – | 0.00 |
| Oct 21 | 72.0 | 41.0 | – | 0.00 |
| Oct 22 | 72.0 | 41.0 | 0.00 | 0.00 |
| Oct 23 | 75.9 | 46.0 | 0.00 | 0.00 |
| Oct 24 | 77.0 | 42.1 | 0.00 | 0.00 |
| Oct 25 | 75.0 | 25.0 | 0.00 | 0.00 |
| Oct 26 | 51.1 | 35.1 | 0.11 | – |
| Oct 27 | 37.9 | 30.9 | 0.19 | 0.59 |
| Oct 28 | 41.0 | 32.0 | 0.00 | 0.00 |
| Oct 29 | 57.9 | 25.0 | 0.00 | 0.00 |
| Oct 30 | 45.0 | 25.0 | 0.05 | – |
| Oct 31 | – | – | – | – |
The data for October 2026 is incomplete: some days or values are missing.
- –No data
- –Not yet observed or received
- TTrace, too small to measure
Observed extremes
- Highest max temperature86.0ºF · Oct 11
- Lowest max temperature37.9ºF · Oct 27
- Highest min temperature46.0ºF · Oct 10
- Lowest min temperature25.0ºF · Oct 25
Geo Eureka - South Dakota
Location
- Country
- United States
- State
- South Dakota
- County
- McPherson
- City
- Eureka
- Zip Code
- 57437
- Elevation
- 1926 ft
- Longitude
- -99.64
- Latitude
- 45.80
- ICAO
- –
- IATA
- –