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As of 11:17 MDT

Weather in Keystone, SD

90°Current weather

Keystone, Saturday, 8 August, 11:17

Clear. Feels like 88°. High 92°, low 60°.

Pressure29.80 inHg
Wind5.3 mph SE
Humidity31%
Visibility6.2 mi
Dew point53°

Two-week outlook for Keystone, SD: week one averages a high of 85.5° and week two 79.4°, so week two runs 6.1° cooler than week one. Around 1.1 inches of precipitation are expected over the 14 days, across 6 wet days. The nearest weekend, August 8: 92°, dry.

Week one vs week two

WeekHighLowPrecipitationVs normal
1st (August 8 – August 14)85.5°59.8°0.2 in / 2 d—
2nd (August 15 – August 21)79.4°59.5°0.9 in / 4 d—

Weekend weather

Sat, August 8
Clear
92°60°
no precip.
Sun, August 9
Overcast
85°66°
no precip.
Sat, August 15
Light rain
74°62°
0.11 in
Sun, August 16
Light rain
86°59°
0.23 in
Sun, 0985° / 66°0Overcast
85 °Overcast

Keystone, Sunday, 9 August

Overcast. High 85°, low 66°.

Pressure29.83 inHg
Wind12.2 mph E
Humidity29%
Visibility6.2 mi
Dew point48°
Mon, 1097° / 63°0Clear
97 °Clear

Keystone, Monday, 10 August

Clear. High 97°, low 63°.

Pressure29.71 inHg
Wind10.2 mph SE
Humidity22%
Visibility6.2 mi
Dew point47°
Tue, 1182° / 63°0.04Light rain
82 °Light rain

Keystone, Tuesday, 11 August

Light rain. High 82°, low 63°.

Pressure29.88 inHg
Wind11.8 mph NE
Humidity40%
Visibility6.2 mi
Dew point54°
Wed, 1283° / 59°0.16Light rain
83 °Light rain

Keystone, Wednesday, 12 August

Light rain. High 83°, low 59°.

Pressure29.85 inHg
Wind15.2 mph NE
Humidity38%
Visibility—
Dew point52°
Thu, 1372° / 50°0Partly cloudy
72 °Partly cloudy

Keystone, Thursday, 13 August

Partly cloudy. High 72°, low 50°.

Pressure30.12 inHg
Wind12.6 mph SE
Humidity36%
Visibility—
Dew point37°
Fri, 1487° / 57°0.02Light rain
87 °Light rain

Keystone, Friday, 14 August

Light rain. High 87°, low 57°.

Pressure29.88 inHg
Wind15.8 mph S
Humidity39%
Visibility—
Dew point51°
Sat, 1574° / 62°0.11Light rain
74 °Light rain

Keystone, Saturday, 15 August

Light rain. High 74°, low 62°.

Pressure29.97 inHg
Wind10 mph N
Humidity61%
Visibility—
Dew point56°
Sun, 1686° / 59°0.23Light rain
86 °Light rain

Keystone, Sunday, 16 August

Light rain. High 86°, low 59°.

Pressure29.94 inHg
Wind6.5 mph NE
Humidity32%
Visibility—
Dew point47°
Mon, 1783° / 63°0.1Light rain
83 °Light rain

Keystone, Monday, 17 August

Light rain. High 83°, low 63°.

Pressure30.00 inHg
Wind13.7 mph SE
Humidity33%
Visibility—
Dew point47°
Tue, 1881° / 62°0.01Light rain
81 °Light rain

Keystone, Tuesday, 18 August

Light rain. High 81°, low 62°.

Pressure29.97 inHg
Wind15.5 mph NE
Humidity27%
Visibility—
Dew point42°
Wed, 1961° / 54°0.44Rain
61 °Rain

Keystone, Wednesday, 19 August

Rain. High 61°, low 54°.

Pressure30.24 inHg
Wind6.3 mph E
Humidity88%
Visibility—
Dew point55°
Thu, 2080° / 54°0Partly cloudy
80 °Partly cloudy

Keystone, Thursday, 20 August

Partly cloudy. High 80°, low 54°.

Pressure30.09 inHg
Wind13.6 mph S
Humidity52%
Visibility—
Dew point52°
Fri, 2189° / 63°0.01Light rain
89 °Light rain

Keystone, Friday, 21 August

Light rain. High 89°, low 63°.

Pressure29.85 inHg
Wind10.6 mph E
Humidity34%
Visibility—
Dew point52°

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 Keystone, 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.