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As of 13:03 CDT

Weather in Grenville, SD

78°Current weather

Grenville, Saturday, 8 August, 13:03

Clear. Feels like 78°. High 85°, low 53°.

Pressure29.91 inHg
Wind10.3 mph SW
Humidity47%
Visibility6.2 mi
Dew point55°
Sun, 0982° / 61°0.46Rain
82 °Rain

Grenville, Sunday, 9 August

Rain. High 82°, low 61°.

Pressure29.88 inHg
Wind9.7 mph NE
Humidity76%
Visibility6.2 mi
Dew point64°
Mon, 1094° / 58°0.24Rain
94 °Rain

Grenville, Monday, 10 August

Rain. High 94°, low 58°.

Pressure29.85 inHg
Wind13.5 mph SE
Humidity43%
Visibility6.2 mi
Dew point57°
Tue, 1183° / 62°0.1Rain
83 °Rain

Grenville, Tuesday, 11 August

Rain. High 83°, low 62°.

Pressure29.88 inHg
Wind7.9 mph N
Humidity52%
Visibility6.2 mi
Dew point59°
Wed, 1281° / 65°0.01Light rain
81 °Light rain

Grenville, Wednesday, 12 August

Light rain. High 81°, low 65°.

Pressure29.91 inHg
Wind9 mph N
Humidity35%
Visibility6.2 mi
Dew point50°
Thu, 1373° / 51°0Clear
73 °Clear

Grenville, Thursday, 13 August

Clear. High 73°, low 51°.

Pressure30.12 inHg
Wind14.1 mph NE
Humidity37%
Visibility—
Dew point39°
Fri, 1484° / 55°0Clear
84 °Clear

Grenville, Friday, 14 August

Clear. High 84°, low 55°.

Pressure30.06 inHg
Wind11.5 mph E
Humidity23%
Visibility—
Dew point35°
Sat, 1579° / 65°0.02Light rain
79 °Light rain

Grenville, Saturday, 15 August

Light rain. High 79°, low 65°.

Pressure30.03 inHg
Wind13.6 mph SE
Humidity39%
Visibility—
Dew point49°
Sun, 1672° / 65°0.29Light rain
72 °Light rain

Grenville, Sunday, 16 August

Light rain. High 72°, low 65°.

Pressure29.97 inHg
Wind14.3 mph SE
Humidity76%
Visibility—
Dew point64°
Mon, 1773° / 61°0.06Light rain
73 °Light rain

Grenville, Monday, 17 August

Light rain. High 73°, low 61°.

Pressure30.03 inHg
Wind10 mph NW
Humidity86%
Visibility—
Dew point61°
Tue, 1883° / 59°0.11Light rain
83 °Light rain

Grenville, Tuesday, 18 August

Light rain. High 83°, low 59°.

Pressure29.88 inHg
Wind17.2 mph N
Humidity46%
Visibility—
Dew point56°
Wed, 1973° / 54°0Partly cloudy
73 °Partly cloudy

Grenville, Wednesday, 19 August

Partly cloudy. High 73°, low 54°.

Pressure30.24 inHg
Wind12.2 mph NE
Humidity42%
Visibility—
Dew point44°
Thu, 2078° / 50°0Partly cloudy
78 °Partly cloudy

Grenville, Thursday, 20 August

Partly cloudy. High 78°, low 50°.

Pressure30.27 inHg
Wind9.1 mph E
Humidity22%
Visibility—
Dew point29°
Fri, 2187° / 56°0Partly cloudy
87 °Partly cloudy

Grenville, Friday, 21 August

Partly cloudy. High 87°, low 56°.

Pressure30.03 inHg
Wind13.9 mph SW
Humidity31%
Visibility—
Dew point45°
Sat, 2290° / 61°0Overcast
90 °Overcast

Grenville, Saturday, 22 August

Overcast. High 90°, low 61°.

Pressure29.91 inHg
Wind10.3 mph E
Humidity29%
Visibility—
Dew point49°
Sun, 2391° / 64°0.05Light rain
91 °Light rain

Grenville, Sunday, 23 August

Light rain. High 91°, low 64°.

Pressure29.85 inHg
Wind13.6 mph S
Humidity30%
Visibility—
Dew point50°

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 Grenville, 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 Grenville, 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.