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As of 19:36 CDT

Weather in Eureka, SD

88°Current weather

Eureka, Saturday, 8 August, 19:36

Overcast. Feels like 88°. High 89°, low 54°.

Pressure29.68 inHg
Wind4.9 mph SE
Humidity42%
Visibility6.2 mi
Dew point62°
Sun, 0988° / 56°0.1Light rain
88 °Light rain

Eureka, Sunday, 9 August

Light rain. High 88°, low 56°.

Pressure29.85 inHg
Wind15.1 mph NE
Humidity30%
Visibility6.2 mi
Dew point48°
Mon, 1098° / 59°1.18Heavy rain
98 °Heavy rain

Eureka, Monday, 10 August

Heavy rain. High 98°, low 59°.

Pressure29.83 inHg
Wind9.1 mph SE
Humidity28%
Visibility6.2 mi
Dew point50°
Tue, 1187° / 61°0Clear
87 °Clear

Eureka, Tuesday, 11 August

Clear. High 87°, low 61°.

Pressure29.88 inHg
Wind8.8 mph NE
Humidity44%
Visibility6.2 mi
Dew point55°
Wed, 1282° / 61°0.02Light rain
82 °Light rain

Eureka, Wednesday, 12 August

Light rain. High 82°, low 61°.

Pressure29.88 inHg
Wind11 mph E
Humidity37%
Visibility6.2 mi
Dew point49°
Thu, 1379° / 58°0Clear
79 °Clear

Eureka, Thursday, 13 August

Clear. High 79°, low 58°.

Pressure30.09 inHg
Wind15.5 mph E
Humidity36%
Visibility—
Dew point44°
Fri, 1488° / 59°0Partly cloudy
88 °Partly cloudy

Eureka, Friday, 14 August

Partly cloudy. High 88°, low 59°.

Pressure30.09 inHg
Wind16.2 mph SE
Humidity29%
Visibility—
Dew point44°
Sat, 1594° / 70°0Partly cloudy
94 °Partly cloudy

Eureka, Saturday, 15 August

Partly cloudy. High 94°, low 70°.

Pressure29.94 inHg
Wind15.8 mph S
Humidity37%
Visibility—
Dew point56°
Sun, 1690° / 69°0.09Light rain
90 °Light rain

Eureka, Sunday, 16 August

Light rain. High 90°, low 69°.

Pressure29.91 inHg
Wind14 mph E
Humidity50%
Visibility—
Dew point64°
Mon, 1795° / 63°0.01Light rain
95 °Light rain

Eureka, Monday, 17 August

Light rain. High 95°, low 63°.

Pressure29.97 inHg
Wind12.2 mph NW
Humidity33%
Visibility—
Dew point53°
Tue, 1895° / 69°0.01Light rain
95 °Light rain

Eureka, Tuesday, 18 August

Light rain. High 95°, low 69°.

Pressure29.91 inHg
Wind12.5 mph N
Humidity22%
Visibility—
Dew point45°
Wed, 1977° / 63°0.1Light rain
77 °Light rain

Eureka, Wednesday, 19 August

Light rain. High 77°, low 63°.

Pressure30.00 inHg
Wind12.9 mph E
Humidity73%
Visibility—
Dew point60°
Thu, 2084° / 62°0Mostly clear
84 °Mostly clear

Eureka, Thursday, 20 August

Mostly clear. High 84°, low 62°.

Pressure30.00 inHg
Wind7.8 mph SE
Humidity36%
Visibility—
Dew point51°
Fri, 2195° / 64°0Clear
95 °Clear

Eureka, Friday, 21 August

Clear. High 95°, low 64°.

Pressure29.83 inHg
Wind19.7 mph NE
Humidity29%
Visibility—
Dew point50°
Sat, 2275° / 52°0Partly cloudy
75 °Partly cloudy

Eureka, Saturday, 22 August

Partly cloudy. High 75°, low 52°.

Pressure30.18 inHg
Wind18.3 mph NE
Humidity29%
Visibility—
Dew point35°
Sun, 2383° / 55°0Overcast
83 °Overcast

Eureka, Sunday, 23 August

Overcast. High 83°, low 55°.

Pressure30.12 inHg
Wind10 mph SE
Humidity25%
Visibility—
Dew point37°

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, SD 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, SD 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.