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As of 03:03 MDT

Weather in Keystone, SD

46°Current weather

Keystone, Monday, 12 October, 03:03

Overcast. Feels like 43°. High 50°, low 38°.

Pressure29.74 inHg
Wind5.2 mph S
Humidity93%
Visibility6.2 mi
Dew point44°

Two-week outlook for Keystone, SD: week one averages a high of 56.4° and week two 61.5°, so week two runs 5.1° warmer than week one. Around 0.6 inches of precipitation are expected over the 14 days, across 4 wet days. The nearest weekend, October 17: 68°, dry.

Week one vs week two

WeekHighLowPrecipitationVs normal
1st (October 12 – October 18)56.4°38.6°0.3 in / 3 d—
2nd (October 19 – October 25)61.5°44°0.2 in / 1 d—

Weekend weather

Sat, October 17
Overcast
68°47°
no precip.
Sun, October 18
Clear
68°48°
no precip.
Sat, October 24
Light rain
56°46°
0.24 in
Sun, October 25
Clear
59°38°
no precip.
Tue, 1347° / 33°0.19Rain
47 °Rain

Keystone, Tuesday, 13 October

Rain. High 47°, low 33°.

Pressure30.03 inHg
Wind3.8 mph SE
Humidity80%
Visibility6.2 mi
Dew point40°
Wed, 1451° / 38°0.06Light rain
51 °Light rain

Keystone, Wednesday, 14 October

Light rain. High 51°, low 38°.

Pressure30.18 inHg
Wind5.7 mph SE
Humidity69%
Visibility6.2 mi
Dew point40°
Thu, 1553° / 38°0.02Light rain
53 °Light rain

Keystone, Thursday, 15 October

Light rain. High 53°, low 38°.

Pressure30.42 inHg
Wind16 mph N
Humidity39%
Visibility6.2 mi
Dew point18°
Fri, 1658° / 26°0Clear
58 °Clear

Keystone, Friday, 16 October

Clear. High 58°, low 26°.

Pressure30.56 inHg
Wind13 mph SW
Humidity35%
Visibility—
Dew point24°
Sat, 1768° / 47°0Overcast
68 °Overcast

Keystone, Saturday, 17 October

Overcast. High 68°, low 47°.

Pressure29.88 inHg
Wind15.4 mph SW
Humidity27%
Visibility—
Dew point31°
Sun, 1868° / 48°0Clear
68 °Clear

Keystone, Sunday, 18 October

Clear. High 68°, low 48°.

Pressure29.83 inHg
Wind8.3 mph E
Humidity19%
Visibility—
Dew point21°
Mon, 1965° / 48°0Clear
65 °Clear

Keystone, Monday, 19 October

Clear. High 65°, low 48°.

Pressure30.03 inHg
Wind9.6 mph SE
Humidity31%
Visibility—
Dew point30°
Tue, 2071° / 48°0Partly cloudy
71 °Partly cloudy

Keystone, Tuesday, 20 October

Partly cloudy. High 71°, low 48°.

Pressure29.77 inHg
Wind13.5 mph S
Humidity23%
Visibility—
Dew point28°
Wed, 2161° / 49°0Overcast
61 °Overcast

Keystone, Wednesday, 21 October

Overcast. High 61°, low 49°.

Pressure29.88 inHg
Wind9.8 mph NE
Humidity39%
Visibility—
Dew point35°
Thu, 2262° / 42°0Partly cloudy
62 °Partly cloudy

Keystone, Thursday, 22 October

Partly cloudy. High 62°, low 42°.

Pressure30.03 inHg
Wind8.5 mph E
Humidity40%
Visibility—
Dew point35°
Fri, 2357° / 38°0Clear
57 °Clear

Keystone, Friday, 23 October

Clear. High 57°, low 38°.

Pressure30.33 inHg
Wind13.6 mph S
Humidity30%
Visibility—
Dew point22°
Sat, 2456° / 46°0.24Light rain
56 °Light rain

Keystone, Saturday, 24 October

Light rain. High 56°, low 46°.

Pressure29.80 inHg
Wind26.2 mph NW
Humidity76%
Visibility—
Dew point47°
Sun, 2559° / 38°0Clear
59 °Clear

Keystone, Sunday, 25 October

Clear. High 59°, low 38°.

Pressure30.18 inHg
Wind22.2 mph NW
Humidity19%
Visibility—
Dew point13°

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.