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As of 13:33 CDT

Weather in Diagonal, IA

79°Current weather

Diagonal, Saturday, 8 August, 13:33

Clear. Feels like 79°. High 81°, low 63°.

Pressure30.03 inHg
Wind6.8 mph SE
Humidity67%
Visibility6.2 mi
Dew point67°
Sun, 0995° / 71°0.02Light rain
95 °Light rain

Diagonal, Sunday, 9 August

Light rain. High 95°, low 71°.

Pressure29.77 inHg
Wind16 mph SW
Humidity52%
Visibility6.2 mi
Dew point70°
Mon, 1090° / 69°0.28Heavy rain
90 °Heavy rain

Diagonal, Monday, 10 August

Heavy rain. High 90°, low 69°.

Pressure29.83 inHg
Wind8.6 mph W
Humidity60%
Visibility6.2 mi
Dew point70°
Tue, 1193° / 71°0Light rain
93 °Light rain

Diagonal, Tuesday, 11 August

Light rain. High 93°, low 71°.

Pressure29.74 inHg
Wind11.8 mph SW
Humidity52%
Visibility6.2 mi
Dew point70°
Wed, 1289° / 72°0.07Light rain
89 °Light rain

Diagonal, Wednesday, 12 August

Light rain. High 89°, low 72°.

Pressure29.85 inHg
Wind11 mph E
Humidity69%
Visibility6.2 mi
Dew point74°
Thu, 1374° / 67°0.63Rain
74 °Rain

Diagonal, Thursday, 13 August

Rain. High 74°, low 67°.

Pressure29.91 inHg
Wind12.7 mph NE
Humidity95%
Visibility—
Dew point69°
Fri, 1476° / 59°0Overcast
76 °Overcast

Diagonal, Friday, 14 August

Overcast. High 76°, low 59°.

Pressure30.18 inHg
Wind9.1 mph E
Humidity59%
Visibility—
Dew point57°
Sat, 1577° / 58°0Overcast
77 °Overcast

Diagonal, Saturday, 15 August

Overcast. High 77°, low 58°.

Pressure30.21 inHg
Wind14.2 mph SE
Humidity61%
Visibility—
Dew point58°
Sun, 1675° / 65°0.1Light rain
75 °Light rain

Diagonal, Sunday, 16 August

Light rain. High 75°, low 65°.

Pressure29.97 inHg
Wind9.7 mph SE
Humidity95%
Visibility—
Dew point71°
Mon, 1784° / 66°0.16Rain
84 °Rain

Diagonal, Monday, 17 August

Rain. High 84°, low 66°.

Pressure30.00 inHg
Wind15.3 mph W
Humidity76%
Visibility—
Dew point70°
Tue, 1886° / 68°0Overcast
86 °Overcast

Diagonal, Tuesday, 18 August

Overcast. High 86°, low 68°.

Pressure29.91 inHg
Wind9.1 mph W
Humidity64%
Visibility—
Dew point68°
Wed, 1971° / 61°0.7Heavy rain
71 °Heavy rain

Diagonal, Wednesday, 19 August

Heavy rain. High 71°, low 61°.

Pressure30.09 inHg
Wind14.4 mph N
Humidity89%
Visibility—
Dew point62°
Thu, 2069° / 51°0Clear
69 °Clear

Diagonal, Thursday, 20 August

Clear. High 69°, low 51°.

Pressure30.30 inHg
Wind9.9 mph NE
Humidity54%
Visibility—
Dew point47°
Fri, 2172° / 48°0Clear
72 °Clear

Diagonal, Friday, 21 August

Clear. High 72°, low 48°.

Pressure30.24 inHg
Wind7.7 mph SE
Humidity50%
Visibility—
Dew point46°
Sat, 2278° / 53°0Overcast
78 °Overcast

Diagonal, Saturday, 22 August

Overcast. High 78°, low 53°.

Pressure30.09 inHg
Wind10.4 mph S
Humidity50%
Visibility—
Dew point51°
Sun, 2382° / 61°0Overcast
82 °Overcast

Diagonal, Sunday, 23 August

Overcast. High 82°, low 61°.

Pressure30.00 inHg
Wind13.1 mph S
Humidity54%
Visibility—
Dew point58°

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 Diagonal, 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 Diagonal, 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.