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As of 16:07 MDT

Weather in Keystone, SD

50°Current weather

Keystone, Wednesday, 14 October, 16:07

Overcast. Feels like 48°. High 49°, low 38°.

Pressure30.09 inHg
Wind5.1 mph SE
Humidity74%
Visibility2.6 mi
Dew point42°

Two-week outlook for Keystone, SD: week one averages a high of 59.4° and week two 60.1°, so both weeks look similar in temperature. Around 0.4 inches of precipitation are expected over the 14 days, across 2 wet days. The nearest weekend, October 17: 74°, dry.

Week one vs week two

WeekHighLowPrecipitationVs normal
1st (October 14 – October 20)59.4°38°0.2 in / 1 d—
2nd (October 21 – October 27)60.1°38.2°0.2 in / 1 d—

Weekend weather

Sat, October 17
Clear
74°48°
no precip.
Sun, October 18
Clear
59°45°
no precip.
Sat, October 24
Overcast
45°30°
no precip.
Sun, October 25
Clear
51°27°
no precip.
Thu, 1544° / 31°0.04Light rain
44 °Light rain

Keystone, Thursday, 15 October

Light rain. High 44°, low 31°.

Pressure30.36 inHg
Wind16.8 mph NW
Humidity44%
Visibility6.2 mi
Dew point17°
Fri, 1653° / 25°0Clear
53 °Clear

Keystone, Friday, 16 October

Clear. High 53°, low 25°.

Pressure30.65 inHg
Wind4.8 mph SE
Humidity41%
Visibility6.2 mi
Dew point6°
Sat, 1774° / 48°0Clear
74 °Clear

Keystone, Saturday, 17 October

Clear. High 74°, low 48°.

Pressure30.03 inHg
Wind2.6 mph SE
Humidity21%
Visibility6.2 mi
Dew point28°
Sun, 1859° / 45°0Clear
59 °Clear

Keystone, Sunday, 18 October

Clear. High 59°, low 45°.

Pressure30.21 inHg
Wind7.7 mph NE
Humidity35%
Visibility6.2 mi
Dew point31°
Mon, 1965° / 35°0Clear
65 °Clear

Keystone, Monday, 19 October

Clear. High 65°, low 35°.

Pressure30.09 inHg
Wind7.2 mph SW
Humidity38%
Visibility—
Dew point32°
Tue, 2070° / 45°0Clear
70 °Clear

Keystone, Tuesday, 20 October

Clear. High 70°, low 45°.

Pressure29.80 inHg
Wind11.5 mph S
Humidity28%
Visibility—
Dew point32°
Wed, 2162° / 45°0Mostly clear
62 °Mostly clear

Keystone, Wednesday, 21 October

Mostly clear. High 62°, low 45°.

Pressure29.94 inHg
Wind9.4 mph E
Humidity34%
Visibility—
Dew point31°
Thu, 2271° / 44°0Clear
71 °Clear

Keystone, Thursday, 22 October

Clear. High 71°, low 44°.

Pressure29.85 inHg
Wind11.4 mph S
Humidity25%
Visibility—
Dew point29°
Fri, 2356° / 36°0.16Snow
56 °Snow

Keystone, Friday, 23 October

Snow. High 56°, low 36°.

Pressure29.77 inHg
Wind23.9 mph N
Humidity62%
Visibility—
Dew point36°
Sat, 2445° / 30°0Overcast
45 °Overcast

Keystone, Saturday, 24 October

Overcast. High 45°, low 30°.

Pressure30.27 inHg
Wind19.5 mph NW
Humidity23%
Visibility—
Dew point8°
Sun, 2551° / 27°0Clear
51 °Clear

Keystone, Sunday, 25 October

Clear. High 51°, low 27°.

Pressure30.39 inHg
Wind11.5 mph NW
Humidity26%
Visibility—
Dew point13°
Mon, 2668° / 39°0Clear
68 °Clear

Keystone, Monday, 26 October

Clear. High 68°, low 39°.

Pressure30.00 inHg
Wind8.8 mph W
Humidity16%
Visibility—
Dew point16°
Tue, 2768° / 47°0Clear
68 °Clear

Keystone, Tuesday, 27 October

Clear. High 68°, low 47°.

Pressure29.83 inHg
Wind8.1 mph E
Humidity17%
Visibility—
Dew point19°

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.