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As of 14:25 CDT

Weather in Keystone, IA

80°Current weather

Keystone, Saturday, 8 August, 14:25

Clear. Feels like 80°. High 80°, low 61°.

Pressure30.03 inHg
Wind2.7 mph N
Humidity61%
Visibility6.2 mi
Dew point65°
Sun, 0989° / 67°0Overcast
89 °Overcast

Keystone, Sunday, 9 August

Overcast. High 89°, low 67°.

Pressure29.80 inHg
Wind13 mph S
Humidity65%
Visibility6.2 mi
Dew point71°
Mon, 1085° / 72°0Light rain
85 °Light rain

Keystone, Monday, 10 August

Light rain. High 85°, low 72°.

Pressure29.85 inHg
Wind1.9 mph SW
Humidity64%
Visibility6.2 mi
Dew point69°
Tue, 1189° / 70°0Overcast
89 °Overcast

Keystone, Tuesday, 11 August

Overcast. High 89°, low 70°.

Pressure29.77 inHg
Wind6.3 mph SW
Humidity57%
Visibility6.2 mi
Dew point70°
Wed, 1284° / 71°0.04Light rain
84 °Light rain

Keystone, Wednesday, 12 August

Light rain. High 84°, low 71°.

Pressure29.88 inHg
Wind5.3 mph SE
Humidity79%
Visibility6.2 mi
Dew point68°
Thu, 1378° / 63°0.06Light rain
78 °Light rain

Keystone, Thursday, 13 August

Light rain. High 78°, low 63°.

Pressure29.97 inHg
Wind12.2 mph NE
Humidity71%
Visibility—
Dew point62°
Fri, 1477° / 56°0Clear
77 °Clear

Keystone, Friday, 14 August

Clear. High 77°, low 56°.

Pressure30.21 inHg
Wind7.5 mph SE
Humidity45%
Visibility—
Dew point50°
Sat, 1578° / 57°0Overcast
78 °Overcast

Keystone, Saturday, 15 August

Overcast. High 78°, low 57°.

Pressure30.24 inHg
Wind10.7 mph SE
Humidity53%
Visibility—
Dew point55°
Sun, 1679° / 63°0Overcast
79 °Overcast

Keystone, Sunday, 16 August

Overcast. High 79°, low 63°.

Pressure30.09 inHg
Wind11.3 mph S
Humidity66%
Visibility—
Dew point64°
Mon, 1786° / 68°0Overcast
86 °Overcast

Keystone, Monday, 17 August

Overcast. High 86°, low 68°.

Pressure29.94 inHg
Wind9.7 mph N
Humidity64%
Visibility—
Dew point69°
Tue, 1888° / 69°0Overcast
88 °Overcast

Keystone, Tuesday, 18 August

Overcast. High 88°, low 69°.

Pressure30.00 inHg
Wind9.1 mph SE
Humidity57%
Visibility—
Dew point66°
Wed, 1989° / 69°0.21Rain
89 °Rain

Keystone, Wednesday, 19 August

Rain. High 89°, low 69°.

Pressure29.85 inHg
Wind15.6 mph N
Humidity55%
Visibility—
Dew point68°
Thu, 2081° / 64°0.09Light rain
81 °Light rain

Keystone, Thursday, 20 August

Light rain. High 81°, low 64°.

Pressure29.94 inHg
Wind10.4 mph NE
Humidity59%
Visibility—
Dew point62°
Fri, 2185° / 63°0Clear
85 °Clear

Keystone, Friday, 21 August

Clear. High 85°, low 63°.

Pressure29.97 inHg
Wind7.8 mph S
Humidity47%
Visibility—
Dew point58°
Sat, 2271° / 59°0.13Light rain
71 °Light rain

Keystone, Saturday, 22 August

Light rain. High 71°, low 59°.

Pressure29.97 inHg
Wind15.8 mph NE
Humidity84%
Visibility—
Dew point65°
Sun, 2372° / 45°0Mostly clear
72 °Mostly clear

Keystone, Sunday, 23 August

Mostly clear. High 72°, low 45°.

Pressure30.21 inHg
Wind10.8 mph E
Humidity41%
Visibility—
Dew point41°

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.