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As of 00:00 MDT

Weather in Keystone, SD

65°Current weather

Keystone, Saturday, 10 October, 00:00

Clear. Feels like 62°. High 79°, low 53°.

Pressure29.56 inHg
Wind11.6 mph W
Humidity31%
Visibility6.2 mi
Dew point33°

Two-week outlook for Keystone, SD: week one averages a high of 55.9° and week two 56.3°, so both weeks look similar in temperature. Around 0.7 inches of precipitation are expected over the 14 days, across 5 wet days. The nearest weekend, October 10: 79°, dry.

Week one vs week two

WeekHighLowPrecipitationVs normal
1st (October 10 – October 16)55.9°39.7°0.5 in / 3 d—
2nd (October 17 – October 23)56.3°36.7°0.2 in / 2 d—

Weekend weather

Sat, October 10
Light rain
79°53°
0.02 in
Sun, October 11
Light rain
57°41°
0.01 in
Sat, October 17
Clear
55°23°
no precip.
Sun, October 18
Overcast
60°43°
no precip.
Sun, 1157° / 41°0.01Light rain
57 °Light rain

Keystone, Sunday, 11 October

Light rain. High 57°, low 41°.

Pressure29.80 inHg
Wind6.9 mph NE
Humidity64%
Visibility6.2 mi
Dew point44°
Mon, 1259° / 41°0.04Light rain
59 °Light rain

Keystone, Monday, 12 October

Light rain. High 59°, low 41°.

Pressure29.77 inHg
Wind5.2 mph SE
Humidity71%
Visibility6.2 mi
Dew point47°
Tue, 1351° / 38°0.26Rain
51 °Rain

Keystone, Tuesday, 13 October

Rain. High 51°, low 38°.

Pressure30.06 inHg
Wind5.8 mph SE
Humidity79%
Visibility6.2 mi
Dew point40°
Wed, 1453° / 40°0Overcast
53 °Overcast

Keystone, Wednesday, 14 October

Overcast. High 53°, low 40°.

Pressure30.24 inHg
Wind5.5 mph E
Humidity67%
Visibility—
Dew point39°
Thu, 1556° / 38°0.12Light rain
56 °Light rain

Keystone, Thursday, 15 October

Light rain. High 56°, low 38°.

Pressure30.18 inHg
Wind21.1 mph NW
Humidity58%
Visibility—
Dew point40°
Fri, 1636° / 27°0Clear
36 °Clear

Keystone, Friday, 16 October

Clear. High 36°, low 27°.

Pressure30.45 inHg
Wind27.3 mph NW
Humidity44%
Visibility—
Dew point15°
Sat, 1755° / 23°0Clear
55 °Clear

Keystone, Saturday, 17 October

Clear. High 55°, low 23°.

Pressure30.18 inHg
Wind14.5 mph S
Humidity20%
Visibility—
Dew point10°
Sun, 1860° / 43°0Overcast
60 °Overcast

Keystone, Sunday, 18 October

Overcast. High 60°, low 43°.

Pressure29.97 inHg
Wind7.7 mph W
Humidity26%
Visibility—
Dew point23°
Mon, 1962° / 41°0Overcast
62 °Overcast

Keystone, Monday, 19 October

Overcast. High 62°, low 41°.

Pressure29.88 inHg
Wind15.3 mph S
Humidity40%
Visibility—
Dew point30°
Tue, 2060° / 43°0Mostly clear
60 °Mostly clear

Keystone, Tuesday, 20 October

Mostly clear. High 60°, low 43°.

Pressure29.71 inHg
Wind11 mph S
Humidity39%
Visibility—
Dew point31°
Wed, 2151° / 37°0.05Snow
51 °Snow

Keystone, Wednesday, 21 October

Snow. High 51°, low 37°.

Pressure30.03 inHg
Wind15.9 mph NW
Humidity48%
Visibility—
Dew point28°
Thu, 2261° / 35°0Mostly clear
61 °Mostly clear

Keystone, Thursday, 22 October

Mostly clear. High 61°, low 35°.

Pressure29.74 inHg
Wind6.5 mph SW
Humidity21%
Visibility—
Dew point18°
Fri, 2345° / 36°0.2Snow
45 °Snow

Keystone, Friday, 23 October

Snow. High 45°, low 36°.

Pressure30.12 inHg
Wind18.3 mph NW
Humidity55%
Visibility—
Dew point28°

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.