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As of 05:32 MDT

Weather in Keystone, SD

31°Current weather

Keystone, Friday, 16 October, 05:32

Clear. Feels like 24°. High 55°, low 30°.

Pressure30.77 inHg
Wind6.8 mph W
Humidity81%
Visibility6.2 mi
Dew point26°

Two-week outlook for Keystone, SD: week one averages a high of 64.4° and week two 51.1°, so week two runs 13.3° cooler than week one. Around 0.3 inches of precipitation are expected over the 14 days, across 2 wet days. The nearest weekend, October 17: 68°, dry.

Week one vs week two

WeekHighLowPrecipitationVs normal
1st (October 16 – October 22)64.4°41.1°0.0 in / 0 d—
2nd (October 23 – October 29)51.1°34.8°0.3 in / 2 d—

Weekend weather

Sat, October 17
Clear
68°41°
no precip.
Sun, October 18
Clear
62°42°
no precip.
Sat, October 24
Snow
52°32°
0.15 in
Sun, October 25
Light snow
41°30°
0.02 in
Sat, 1768° / 41°0Clear
68 °Clear

Keystone, Saturday, 17 October

Clear. High 68°, low 41°.

Pressure30.00 inHg
Wind1.5 mph S
Humidity20%
Visibility6.2 mi
Dew point28°
Sun, 1862° / 42°0Clear
62 °Clear

Keystone, Sunday, 18 October

Clear. High 62°, low 42°.

Pressure30.06 inHg
Wind8.8 mph N
Humidity33%
Visibility6.2 mi
Dew point32°
Mon, 1960° / 35°0Clear
60 °Clear

Keystone, Monday, 19 October

Clear. High 60°, low 35°.

Pressure30.03 inHg
Wind5.8 mph SE
Humidity49%
Visibility6.2 mi
Dew point39°
Tue, 2070° / 45°0Clear
70 °Clear

Keystone, Tuesday, 20 October

Clear. High 70°, low 45°.

Pressure29.85 inHg
Wind8.6 mph SW
Humidity38%
Visibility—
Dew point38°
Wed, 2163° / 48°0Clear
63 °Clear

Keystone, Wednesday, 21 October

Clear. High 63°, low 48°.

Pressure30.09 inHg
Wind8.5 mph W
Humidity45%
Visibility—
Dew point40°
Thu, 2273° / 46°0Partly cloudy
73 °Partly cloudy

Keystone, Thursday, 22 October

Partly cloudy. High 73°, low 46°.

Pressure29.94 inHg
Wind14.7 mph SW
Humidity26%
Visibility—
Dew point31°
Fri, 2368° / 52°0.09Light rain
68 °Light rain

Keystone, Friday, 23 October

Light rain. High 68°, low 52°.

Pressure29.62 inHg
Wind17.9 mph W
Humidity40%
Visibility—
Dew point40°
Sat, 2452° / 32°0.15Snow
52 °Snow

Keystone, Saturday, 24 October

Snow. High 52°, low 32°.

Pressure30.03 inHg
Wind16.1 mph NW
Humidity56%
Visibility—
Dew point28°
Sun, 2541° / 30°0.02Light snow
41 °Light snow

Keystone, Sunday, 25 October

Light snow. High 41°, low 30°.

Pressure30.39 inHg
Wind6.7 mph N
Humidity58%
Visibility—
Dew point24°
Mon, 2648° / 27°0Partly cloudy
48 °Partly cloudy

Keystone, Monday, 26 October

Partly cloudy. High 48°, low 27°.

Pressure29.91 inHg
Wind6.2 mph NE
Humidity36%
Visibility—
Dew point19°
Tue, 2752° / 35°0Overcast
52 °Overcast

Keystone, Tuesday, 27 October

Overcast. High 52°, low 35°.

Pressure29.80 inHg
Wind8.6 mph W
Humidity36%
Visibility—
Dew point23°
Wed, 2855° / 36°0Light rain
55 °Light rain

Keystone, Wednesday, 28 October

Light rain. High 55°, low 36°.

Pressure29.53 inHg
Wind8.1 mph S
Humidity51%
Visibility—
Dew point33°
Thu, 2943° / 31°0Overcast
43 °Overcast

Keystone, Thursday, 29 October

Overcast. High 43°, low 31°.

Pressure29.80 inHg
Wind13.8 mph NW
Humidity47%
Visibility—
Dew point23°

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.