EN
English Español

As of 09:34 MDT

Weather in Keystone, SD

47°Current weather

Keystone, Thursday, 15 October, 09:34

Partly cloudy. Feels like 41°. High 47°, low 32°.

Pressure30.36 inHg
Wind15.7 mph NW
Humidity48%
Visibility6.2 mi
Dew point29°

Two-week outlook for Keystone, SD: week one averages a high of 62.5° and week two 55.3°, so week two runs 7.2° cooler than week one. Around 0.7 inches of precipitation are expected over the 14 days, across 4 wet days. The nearest weekend, October 17: 75°, dry.

Week one vs week two

WeekHighLowPrecipitationVs normal
1st (October 15 – October 21)62.5°39.2°0.1 in / 1 d—
2nd (October 22 – October 28)55.3°41.1°0.6 in / 3 d—

Weekend weather

Sat, October 17
Clear
75°41°
no precip.
Sun, October 18
Clear
62°45°
no precip.
Sat, October 24
Partly cloudy
50°37°
no precip.
Sun, October 25
Overcast
56°33°
no precip.
Fri, 1649° / 25°0Clear
49 °Clear

Keystone, Friday, 16 October

Clear. High 49°, low 25°.

Pressure30.62 inHg
Wind5.5 mph SE
Humidity48%
Visibility6.2 mi
Dew point22°
Sat, 1775° / 41°0Clear
75 °Clear

Keystone, Saturday, 17 October

Clear. High 75°, low 41°.

Pressure30.00 inHg
Wind1.5 mph S
Humidity19%
Visibility6.2 mi
Dew point26°
Sun, 1862° / 45°0Clear
62 °Clear

Keystone, Sunday, 18 October

Clear. High 62°, low 45°.

Pressure30.06 inHg
Wind8.2 mph N
Humidity34%
Visibility6.2 mi
Dew point32°
Mon, 1960° / 35°0Clear
60 °Clear

Keystone, Monday, 19 October

Clear. High 60°, low 35°.

Pressure30.03 inHg
Wind7.9 mph SE
Humidity41%
Visibility—
Dew point33°
Tue, 2070° / 45°0Clear
70 °Clear

Keystone, Tuesday, 20 October

Clear. High 70°, low 45°.

Pressure29.94 inHg
Wind9.2 mph SW
Humidity31%
Visibility—
Dew point35°
Wed, 2175° / 52°0Partly cloudy
75 °Partly cloudy

Keystone, Wednesday, 21 October

Partly cloudy. High 75°, low 52°.

Pressure29.77 inHg
Wind10.7 mph W
Humidity28%
Visibility—
Dew point36°
Thu, 2273° / 54°0.05Light rain
73 °Light rain

Keystone, Thursday, 22 October

Light rain. High 73°, low 54°.

Pressure29.68 inHg
Wind7.2 mph W
Humidity30%
Visibility—
Dew point38°
Fri, 2353° / 42°0.36Rain
53 °Rain

Keystone, Friday, 23 October

Rain. High 53°, low 42°.

Pressure29.91 inHg
Wind16.9 mph N
Humidity85%
Visibility—
Dew point39°
Sat, 2450° / 37°0Partly cloudy
50 °Partly cloudy

Keystone, Saturday, 24 October

Partly cloudy. High 50°, low 37°.

Pressure30.21 inHg
Wind12 mph NW
Humidity30%
Visibility—
Dew point17°
Sun, 2556° / 33°0Overcast
56 °Overcast

Keystone, Sunday, 25 October

Overcast. High 56°, low 33°.

Pressure30.12 inHg
Wind16.6 mph S
Humidity58%
Visibility—
Dew point33°
Mon, 2655° / 44°0Overcast
55 °Overcast

Keystone, Monday, 26 October

Overcast. High 55°, low 44°.

Pressure29.91 inHg
Wind8.1 mph SW
Humidity60%
Visibility—
Dew point40°
Tue, 2747° / 39°0.19Snow
47 °Snow

Keystone, Tuesday, 27 October

Snow. High 47°, low 39°.

Pressure29.80 inHg
Wind11.8 mph W
Humidity74%
Visibility—
Dew point36°
Wed, 2851° / 38°0.03Light snow
51 °Light snow

Keystone, Wednesday, 28 October

Light snow. High 51°, low 38°.

Pressure29.56 inHg
Wind25.1 mph W
Humidity34%
Visibility—
Dew point20°

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.