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As of 04:39 CDT

Weather in Gretna, SD

60°Current weather

Gretna, Sunday, 9 August, 04:39

Clear. Feels like 60°. High 84°, low 57°.

Pressure29.80 inHg
Wind8.5 mph NE
Humidity91%
Visibility6.2 mi
Dew point57°

Two-week outlook for Gretna, SD: week one averages a high of 83.8° and week two 91.7°, so week two runs 7.8° warmer than week one. Around 1.9 inches of precipitation are expected over the 14 days, across 7 wet days. The nearest weekend, August 9: 84°, with precipitation.

Week one vs week two

WeekHighLowPrecipitationVs normal
1st (August 9 – August 15)83.8°60°0.4 in / 4 d—
2nd (August 16 – August 22)91.7°67.6°1.5 in / 3 d—

Weekend weather

Sun, August 9
Light rain
84°57°
0.1 in
Sat, August 15
Light rain
79°62°
0.04 in
Sun, August 16
Overcast
88°62°
no precip.
Sat, August 22
Heavy rain
85°65°
0.64 in
Mon, 1092° / 54°0.25Rain
92 °Rain

Gretna, Monday, 10 August

Rain. High 92°, low 54°.

Pressure29.83 inHg
Wind7.3 mph S
Humidity40%
Visibility6.2 mi
Dew point59°
Tue, 1188° / 62°0.04Light rain
88 °Light rain

Gretna, Tuesday, 11 August

Light rain. High 88°, low 62°.

Pressure29.88 inHg
Wind11.9 mph NE
Humidity40%
Visibility6.2 mi
Dew point53°
Wed, 1289° / 63°0Clear
89 °Clear

Gretna, Wednesday, 12 August

Clear. High 89°, low 63°.

Pressure29.91 inHg
Wind10 mph E
Humidity27%
Visibility6.2 mi
Dew point46°
Thu, 1377° / 63°0Overcast
77 °Overcast

Gretna, Thursday, 13 August

Overcast. High 77°, low 63°.

Pressure30.00 inHg
Wind15.2 mph E
Humidity39%
Visibility—
Dew point48°
Fri, 1478° / 57°0Overcast
78 °Overcast

Gretna, Friday, 14 August

Overcast. High 78°, low 57°.

Pressure30.06 inHg
Wind16.7 mph S
Humidity43%
Visibility—
Dew point49°
Sat, 1579° / 62°0.04Light rain
79 °Light rain

Gretna, Saturday, 15 August

Light rain. High 79°, low 62°.

Pressure30.06 inHg
Wind10.8 mph S
Humidity70%
Visibility—
Dew point60°
Sun, 1688° / 62°0Overcast
88 °Overcast

Gretna, Sunday, 16 August

Overcast. High 88°, low 62°.

Pressure30.12 inHg
Wind9 mph E
Humidity29%
Visibility—
Dew point45°
Mon, 1791° / 67°0.12Light rain
91 °Light rain

Gretna, Monday, 17 August

Light rain. High 91°, low 67°.

Pressure29.88 inHg
Wind16.7 mph SE
Humidity56%
Visibility—
Dew point64°
Tue, 18101° / 70°0Overcast
101 °Overcast

Gretna, Tuesday, 18 August

Overcast. High 101°, low 70°.

Pressure29.71 inHg
Wind13.8 mph N
Humidity25%
Visibility—
Dew point52°
Wed, 19104° / 73°0Overcast
104 °Overcast

Gretna, Wednesday, 19 August

Overcast. High 104°, low 73°.

Pressure29.74 inHg
Wind18 mph N
Humidity34%
Visibility—
Dew point60°
Thu, 2086° / 69°0Overcast
86 °Overcast

Gretna, Thursday, 20 August

Overcast. High 86°, low 69°.

Pressure30.00 inHg
Wind11.4 mph N
Humidity43%
Visibility—
Dew point49°
Fri, 2186° / 67°0.74Heavy rain
86 °Heavy rain

Gretna, Friday, 21 August

Heavy rain. High 86°, low 67°.

Pressure29.88 inHg
Wind19.6 mph SE
Humidity37%
Visibility—
Dew point53°
Sat, 2285° / 65°0.64Heavy rain
85 °Heavy rain

Gretna, Saturday, 22 August

Heavy rain. High 85°, low 65°.

Pressure29.74 inHg
Wind15.8 mph NE
Humidity62%
Visibility—
Dew point64°

About this forecast

Can I plan a trip on a 2-week forecast?

Week one is solid for planning — accuracy is high. Week two shows the trend: go by the averages and the comparison with normal, and check the details closer to the date.

What does the "Vs normal" column mean?

It is the gap between the forecast and the climate normal for those same dates in Gretna, SD, computed over 60 years. A positive value means the week runs warmer than usual.

Why are weekends shown separately?

Saturday and Sunday plans are what people check most, so we give them their own cards with temperature and precipitation.