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As of 06:49 MDT

Weather in Keystone, SD

46°Current weather

Keystone, Thursday, 15 October, 06:49

Overcast. Feels like 39°. High 49°, low 32°.

Pressure30.27 inHg
Wind15.1 mph NW
Humidity67%
Visibility6.2 mi
Dew point35°

Two-week outlook for Keystone, SD: week one averages a high of 62.5° and week two 50.5°, so week two runs 12° cooler than week one. Around 1.3 inches of precipitation are expected over the 14 days, across 2 wet days. The nearest weekend, October 17: 76°, dry.

Week one vs week two

WeekHighLowPrecipitationVs normal
1st (October 15 – October 21)62.5°39.4°0.1 in / 1 d—
2nd (October 22 – October 28)50.5°35.4°1.2 in / 1 d—

Weekend weather

Sat, October 17
Clear
76°47°
no precip.
Sun, October 18
Clear
60°45°
no precip.
Sat, October 24
Light snow
37°31°
no precip.
Sun, October 25
Mostly clear
44°30°
no precip.
Fri, 1648° / 25°0Clear
48 °Clear

Keystone, Friday, 16 October

Clear. High 48°, low 25°.

Pressure30.62 inHg
Wind5.5 mph SE
Humidity46%
Visibility6.2 mi
Dew point18°
Sat, 1776° / 47°0Clear
76 °Clear

Keystone, Saturday, 17 October

Clear. High 76°, low 47°.

Pressure30.03 inHg
Wind1.7 mph SE
Humidity20%
Visibility6.2 mi
Dew point26°
Sun, 1860° / 45°0Clear
60 °Clear

Keystone, Sunday, 18 October

Clear. High 60°, low 45°.

Pressure30.15 inHg
Wind8.6 mph NE
Humidity35%
Visibility6.2 mi
Dew point32°
Mon, 1963° / 34°0Clear
63 °Clear

Keystone, Monday, 19 October

Clear. High 63°, low 34°.

Pressure30.03 inHg
Wind8.1 mph SE
Humidity43%
Visibility—
Dew point34°
Tue, 2068° / 46°0Mostly clear
68 °Mostly clear

Keystone, Tuesday, 20 October

Mostly clear. High 68°, low 46°.

Pressure29.91 inHg
Wind9.4 mph S
Humidity37%
Visibility—
Dew point37°
Wed, 2174° / 48°0.01Light rain
74 °Light rain

Keystone, Wednesday, 21 October

Light rain. High 74°, low 48°.

Pressure29.77 inHg
Wind7.4 mph S
Humidity46%
Visibility—
Dew point45°
Thu, 2273° / 52°0.03Light rain
73 °Light rain

Keystone, Thursday, 22 October

Light rain. High 73°, low 52°.

Pressure29.62 inHg
Wind8.3 mph E
Humidity34%
Visibility—
Dew point40°
Fri, 2352° / 36°1.12Snow
52 °Snow

Keystone, Friday, 23 October

Snow. High 52°, low 36°.

Pressure29.65 inHg
Wind26.6 mph NW
Humidity90%
Visibility—
Dew point36°
Sat, 2437° / 31°0.01Light snow
37 °Light snow

Keystone, Saturday, 24 October

Light snow. High 37°, low 31°.

Pressure30.24 inHg
Wind28.4 mph NW
Humidity58%
Visibility—
Dew point21°
Sun, 2544° / 30°0Mostly clear
44 °Mostly clear

Keystone, Sunday, 25 October

Mostly clear. High 44°, low 30°.

Pressure30.30 inHg
Wind16.2 mph NW
Humidity48%
Visibility—
Dew point22°
Mon, 2639° / 30°0Light snow
39 °Light snow

Keystone, Monday, 26 October

Light snow. High 39°, low 30°.

Pressure30.42 inHg
Wind8.4 mph N
Humidity73%
Visibility—
Dew point28°
Tue, 2752° / 32°0Overcast
52 °Overcast

Keystone, Tuesday, 27 October

Overcast. High 52°, low 32°.

Pressure30.12 inHg
Wind11.1 mph W
Humidity40%
Visibility—
Dew point24°
Wed, 2857° / 38°0Overcast
57 °Overcast

Keystone, Wednesday, 28 October

Overcast. High 57°, low 38°.

Pressure29.88 inHg
Wind11.6 mph NW
Humidity36%
Visibility—
Dew point27°

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.