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As of 02:38 CDT

Weather in Keystone, IA

55°Current weather

Keystone, Thursday, 8 October, 02:38

Overcast. Feels like 53°. High 73°, low 51°.

Pressure30.03 inHg
Wind6.6 mph NW
Humidity65%
Visibility6.2 mi
Dew point43°
Fri, 0978° / 51°0.06Light rain
78 °Light rain

Keystone, Friday, 9 October

Light rain. High 78°, low 51°.

Pressure30.00 inHg
Wind9.4 mph SE
Humidity69%
Visibility6.2 mi
Dew point56°
Sat, 1081° / 62°0Clear
81 °Clear

Keystone, Saturday, 10 October

Clear. High 81°, low 62°.

Pressure30.00 inHg
Wind11.3 mph S
Humidity59%
Visibility6.2 mi
Dew point62°
Sun, 1177° / 59°0Clear
77 °Clear

Keystone, Sunday, 11 October

Clear. High 77°, low 59°.

Pressure29.94 inHg
Wind9.8 mph S
Humidity56%
Visibility6.2 mi
Dew point57°
Mon, 1281° / 61°0Clear
81 °Clear

Keystone, Monday, 12 October

Clear. High 81°, low 61°.

Pressure29.71 inHg
Wind14.8 mph NW
Humidity59%
Visibility—
Dew point61°
Tue, 1357° / 46°0Partly cloudy
57 °Partly cloudy

Keystone, Tuesday, 13 October

Partly cloudy. High 57°, low 46°.

Pressure30.15 inHg
Wind15.7 mph NW
Humidity52%
Visibility—
Dew point37°
Wed, 1461° / 43°0.14Light rain
61 °Light rain

Keystone, Wednesday, 14 October

Light rain. High 61°, low 43°.

Pressure29.97 inHg
Wind18 mph SE
Humidity89%
Visibility—
Dew point46°
Thu, 1581° / 65°1.13Heavy rain
81 °Heavy rain

Keystone, Thursday, 15 October

Heavy rain. High 81°, low 65°.

Pressure29.68 inHg
Wind21.9 mph S
Humidity73%
Visibility—
Dew point68°
Fri, 1672° / 46°0.04Light rain
72 °Light rain

Keystone, Friday, 16 October

Light rain. High 72°, low 46°.

Pressure29.88 inHg
Wind15.7 mph SW
Humidity82%
Visibility—
Dew point56°
Sat, 1746° / 43°0Light rain
46 °Light rain

Keystone, Saturday, 17 October

Light rain. High 46°, low 43°.

Pressure30.18 inHg
Wind15.5 mph W
Humidity80%
Visibility—
Dew point39°
Sun, 1855° / 42°0Mostly clear
55 °Mostly clear

Keystone, Sunday, 18 October

Mostly clear. High 55°, low 42°.

Pressure30.30 inHg
Wind9.3 mph W
Humidity52%
Visibility—
Dew point34°
Mon, 1963° / 42°0Clear
63 °Clear

Keystone, Monday, 19 October

Clear. High 63°, low 42°.

Pressure30.18 inHg
Wind13 mph S
Humidity50%
Visibility—
Dew point39°
Tue, 2056° / 43°0Partly cloudy
56 °Partly cloudy

Keystone, Tuesday, 20 October

Partly cloudy. High 56°, low 43°.

Pressure30.24 inHg
Wind13.7 mph N
Humidity49%
Visibility—
Dew point36°
Wed, 2154° / 36°0Clear
54 °Clear

Keystone, Wednesday, 21 October

Clear. High 54°, low 36°.

Pressure30.21 inHg
Wind11.1 mph S
Humidity51%
Visibility—
Dew point32°
Thu, 2264° / 45°0Overcast
64 °Overcast

Keystone, Thursday, 22 October

Overcast. High 64°, low 45°.

Pressure29.59 inHg
Wind19.8 mph S
Humidity52%
Visibility—
Dew point44°
Fri, 2354° / 46°0.21Rain
54 °Rain

Keystone, Friday, 23 October

Rain. High 54°, low 46°.

Pressure29.77 inHg
Wind12.3 mph NW
Humidity52%
Visibility—
Dew point36°

About the monthly outlook

How accurate is a 30-day forecast?

The first 16 days come from weather models — reliable for the first 3–5 days and progressively less so after that. Days 17 through 30 for Keystone, IA are built from the climate normal, the 60-year average, so they show typical weather for those dates rather than a specific forecast.

What does "above normal" mean?

We compare the forecast against the climate normal for those exact calendar days, computed from 60 years of observations. The deviation shows how much the coming month differs from a typical one.

Where do the 66-year records come from?

They are real temperature extremes recorded in Keystone, IA since 1960: the highest and lowest reading for each calendar date, with the year it happened.

How often is it updated?

The forecast portion refreshes every hour; the climate portion is based on long-term data and stays stable.