Climate Eureka - South Dakota
| JanJa | FebFe | MarMa | AprAp | MayMa | JunJu | |
|---|---|---|---|---|---|---|
| Average high in ºF Av. high Hi | 23 | 28 | 40 | 58 | 69 | 78 |
| Average low in ºF Av. low Lo | 4 | 9 | 20 | 32 | 44 | 54 |
| Av. precipitation in inch Av. precip. Pre. | 0.33 | 0.47 | 0.91 | 1.66 | 2.88 | 3.66 |
| Av. snowfall in inch Snowfall Sn | 7 | 7 | 9 | 4 | 0 | 0 |
| JulJu | AugAu | SepSe | OctOc | NovNo | DecDe | |
|---|---|---|---|---|---|---|
| Average high in ºF Av. high Hi | 85 | 83 | 73 | 58 | 39 | 26 |
| Average low in ºF Av. low Lo | 59 | 57 | 47 | 34 | 20 | 8 |
| Av. precipitation in inch Av. precip. Pre. | 2.98 | 2.37 | 1.70 | 1.72 | 0.62 | 0.44 |
| Av. snowfall in inch Snowfall Sn | 0 | 0 | 0 | 1 | 8 | 7 |
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 Climate Graph - South Dakota Climate Chart
Daily normals Eureka - South Dakota - January
Day | High ºF | Low ºF | Prec/mo inch | Prec/yr inch | Snow/mo inch | Snow/yr inch |
|---|---|---|---|---|---|---|
| 1 Jan | 21.0 | 3.5 | 0.02 | 0.02 | 0.30 | 0.30 |
| 2 Jan | 20.9 | 3.3 | 0.03 | 0.03 | 0.50 | 0.50 |
| 3 Jan | 20.8 | 3.1 | 0.05 | 0.05 | 0.80 | 0.80 |
| 4 Jan | 20.6 | 2.9 | 0.07 | 0.07 | 1.10 | 1.10 |
| 5 Jan | 20.5 | 2.7 | 0.08 | 0.08 | 1.40 | 1.40 |
| 6 Jan | 20.4 | 2.6 | 0.10 | 0.10 | 1.60 | 1.60 |
| 7 Jan | 20.4 | 2.4 | 0.12 | 0.12 | 1.90 | 1.90 |
| 8 Jan | 20.3 | 2.2 | 0.13 | 0.13 | 2.20 | 2.20 |
| 9 Jan | 20.2 | 2.1 | 0.15 | 0.15 | 2.40 | 2.40 |
| 10 Jan | 20.2 | 2.0 | 0.16 | 0.16 | 2.70 | 2.70 |
| 11 Jan | 20.1 | 1.8 | 0.17 | 0.17 | 2.90 | 2.90 |
| 12 Jan | 20.1 | 1.7 | 0.19 | 0.19 | 3.20 | 3.20 |
| 13 Jan | 20.1 | 1.6 | 0.20 | 0.20 | 3.40 | 3.40 |
| 14 Jan | 20.1 | 1.5 | 0.21 | 0.21 | 3.70 | 3.70 |
| 15 Jan | 20.1 | 1.4 | 0.22 | 0.22 | 3.90 | 3.90 |
| 16 Jan | 20.1 | 1.3 | 0.23 | 0.23 | 4.10 | 4.10 |
| 17 Jan | 20.1 | 1.3 | 0.24 | 0.24 | 4.30 | 4.30 |
| 18 Jan | 20.2 | 1.2 | 0.25 | 0.25 | 4.50 | 4.50 |
| 19 Jan | 20.2 | 1.2 | 0.26 | 0.26 | 4.60 | 4.60 |
| 20 Jan | 20.3 | 1.1 | 0.27 | 0.27 | 4.80 | 4.80 |
| 21 Jan | 20.3 | 1.1 | 0.27 | 0.27 | 5.00 | 5.00 |
| 22 Jan | 20.4 | 1.1 | 0.28 | 0.28 | 5.20 | 5.20 |
| 23 Jan | 20.5 | 1.1 | 0.29 | 0.29 | 5.40 | 5.40 |
| 24 Jan | 20.6 | 1.2 | 0.30 | 0.30 | 5.50 | 5.50 |
| 25 Jan | 20.6 | 1.2 | 0.31 | 0.31 | 5.70 | 5.70 |
| 26 Jan | 20.8 | 1.3 | 0.32 | 0.32 | 5.90 | 5.90 |
| 27 Jan | 20.9 | 1.3 | 0.33 | 0.33 | 6.10 | 6.10 |
| 28 Jan | 21.0 | 1.4 | 0.33 | 0.33 | 6.30 | 6.30 |
| 29 Jan | 21.1 | 1.5 | 0.34 | 0.34 | 6.50 | 6.50 |
| 30 Jan | 21.2 | 1.6 | 0.35 | 0.35 | 6.70 | 6.70 |
| 31 Jan | 21.4 | 1.7 | 0.36 | 0.36 | 6.90 | 6.90 |
Weather history Eureka - August 2026
| Day | High ºF | Low ºF | Precip. inch | Snow inch | Snow d. inch |
|---|---|---|---|---|---|
| 01 Aug | 82.9 | 55.9 | 0.00 | 0.00 | - |
| 02 Aug | 88.0 | 61.0 | 0.00 | 0.00 | - |
| 03 Aug | 98.1 | 66.9 | 0.08 | - | - |
| 04 Aug | 81.0 | 44.1 | 0.00 | 0.00 | - |
| 05 Aug | 73.9 | 48.9 | 0.00 | 0.00 | - |
| 06 Aug | 84.9 | 55.9 | 0.00 | 0.00 | - |
| 07 Aug | 91.9 | 53.1 | 0.00 | 0.00 | - |
| 08 Aug | 79.0 | 52.0 | 0.00 | 0.00 | - |
| 09 Aug | 87.1 | 57.0 | 1.26 | - | - |
| 10 Aug | 77.0 | 54.0 | 0.00 | 0.00 | - |
| 11 Aug | 81.0 | 59.0 | 0.00 | 0.00 | - |
| 12 Aug | 84.9 | 64.9 | 0.02 | - | - |
| 13 Aug | - | - | - | - | - |
| 14 Aug | - | - | - | - | - |
| 15 Aug | - | - | - | - | - |
| 16 Aug | - | - | - | - | - |
| 17 Aug | - | - | - | - | - |
| 18 Aug | - | - | - | - | - |
| 19 Aug | - | - | - | - | - |
| 20 Aug | - | - | - | - | - |
| 21 Aug | - | - | - | - | - |
| 22 Aug | - | - | - | - | - |
| 23 Aug | - | - | - | - | - |
| 24 Aug | - | - | - | - | - |
| 25 Aug | - | - | - | - | - |
| 26 Aug | - | - | - | - | - |
| 27 Aug | - | - | - | - | - |
| 28 Aug | - | - | - | - | - |
| 29 Aug | - | - | - | - | - |
| 30 Aug | - | - | - | - | - |
| 31 Aug | - | - | - | - | - |
Past weather Eureka
| Aug 26 | Normal | ||
|---|---|---|---|
| Average high temperature Av. high temp. | 84.1 ºF | 23 ºF | |
| Average low temperature Av. low temp. | 56.1 ºF | 4 ºF | |
| Total precipitation Total precip. | 1.36 inch | 0.33 inch | |
| Total snowfall Total snowfall | 0.00 inch | 7 inch | |
| Highest max temperature Highest max temp. | 98.1 ºF | - | |
| Lowest max temperature Lowest max temp. | 73.9 ºF | - | |
| Highest min temperature Highest min temp. | 66.9 ºF | - | |
| Lowest min temperature Lowest min temp. | 44.1 ºF | - | |
Past weather August 2026 incomplete - Missing data
Geo Eureka - South Dakota
| Country | United States | |
|---|---|---|
| State | South Dakota | |
| County | McPherson | |
| City | Eureka | |
| Zip Code | 57437 | |
| Longitude | -99.64 dec. degr. | |
| Latitude | 45.8 dec. degr. | |
| Altitude - Elevation | 1926ft | |
| ICAO | - | |
| IATA | - |
Date and Time Eureka - South Dakota
| Local Time | 03:02 AM | |
|---|---|---|
| Sunrise | 06:37 AM | |
| Sunset | 08:48 PM | |
| Day/Night | Night | |
| Timezone | Central Daylight Time | |
| Timezone DB | America - Chicago |
Map of Eureka - South Dakota
USGS National Map — Open interactive map
Eureka weather averages
| Annual high temperature | 55ºF |
| Annual low temperature | 32ºF |
| Average annual precip. | 19.74 inch |
| Av. annual snowfall | 43 inch |
Station Data
Monthly averages Eureka
Longitude: -99.6421, Latitude: 45.8
Average weather Eureka, SD - 57437
Monthly: 1991-2020 normals
History: 2007-2026
Abbreviations
Average precipitation in : Av. precipitation in
Jan: January, Feb: February, ...Jan: January, Feb: February, ...Ja: January, Fe: February, ...