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As of 16:15 CDT

Weather in Letts, IA

83°Current weather

Letts, Saturday, 8 August, 16:15

Clear. Feels like 85°. High 83°, low 66°.

Pressure30.03 inHg
Wind2 mph N
Humidity57%
Visibility6.2 mi
Dew point65°
Sun, 0991° / 66°0Overcast
91 °Overcast

Letts, Sunday, 9 August

Overcast. High 91°, low 66°.

Pressure29.83 inHg
Wind11.2 mph S
Humidity60%
Visibility6.2 mi
Dew point72°
Mon, 1089° / 72°0.01Light rain
89 °Light rain

Letts, Monday, 10 August

Light rain. High 89°, low 72°.

Pressure29.83 inHg
Wind7.4 mph SW
Humidity68%
Visibility6.2 mi
Dew point71°
Tue, 1194° / 73°0Overcast
94 °Overcast

Letts, Tuesday, 11 August

Overcast. High 94°, low 73°.

Pressure29.77 inHg
Wind12.3 mph SW
Humidity57%
Visibility6.2 mi
Dew point71°
Wed, 1280° / 71°0.1Light rain
80 °Light rain

Letts, Wednesday, 12 August

Light rain. High 80°, low 71°.

Pressure29.88 inHg
Wind3.2 mph N
Humidity82%
Visibility4.8 mi
Dew point71°
Thu, 1375° / 64°0.34Rain
75 °Rain

Letts, Thursday, 13 August

Rain. High 75°, low 64°.

Pressure29.91 inHg
Wind13.3 mph NE
Humidity69%
Visibility—
Dew point63°
Fri, 1478° / 59°0Clear
78 °Clear

Letts, Friday, 14 August

Clear. High 78°, low 59°.

Pressure30.18 inHg
Wind7.4 mph SE
Humidity53%
Visibility—
Dew point56°
Sat, 1577° / 57°0Overcast
77 °Overcast

Letts, Saturday, 15 August

Overcast. High 77°, low 57°.

Pressure30.27 inHg
Wind9.7 mph SE
Humidity55%
Visibility—
Dew point56°
Sun, 1678° / 60°0Overcast
78 °Overcast

Letts, Sunday, 16 August

Overcast. High 78°, low 60°.

Pressure30.09 inHg
Wind13.3 mph S
Humidity66%
Visibility—
Dew point62°
Mon, 1788° / 67°0Overcast
88 °Overcast

Letts, Monday, 17 August

Overcast. High 88°, low 67°.

Pressure29.94 inHg
Wind6.9 mph SE
Humidity69%
Visibility—
Dew point70°
Tue, 1888° / 71°0Overcast
88 °Overcast

Letts, Tuesday, 18 August

Overcast. High 88°, low 71°.

Pressure30.00 inHg
Wind7.9 mph SE
Humidity61%
Visibility—
Dew point68°
Wed, 1991° / 69°0.16Light rain
91 °Light rain

Letts, Wednesday, 19 August

Light rain. High 91°, low 69°.

Pressure29.88 inHg
Wind9.1 mph NE
Humidity56%
Visibility—
Dew point68°
Thu, 2080° / 66°0.3Rain
80 °Rain

Letts, Thursday, 20 August

Rain. High 80°, low 66°.

Pressure29.91 inHg
Wind10 mph NE
Humidity62%
Visibility—
Dew point64°
Fri, 2184° / 63°0Clear
84 °Clear

Letts, Friday, 21 August

Clear. High 84°, low 63°.

Pressure29.97 inHg
Wind7.3 mph S
Humidity53%
Visibility—
Dew point60°
Sat, 2281° / 62°0.02Light rain
81 °Light rain

Letts, Saturday, 22 August

Light rain. High 81°, low 62°.

Pressure29.94 inHg
Wind16.9 mph NE
Humidity58%
Visibility—
Dew point62°
Sun, 2371° / 47°0Mostly clear
71 °Mostly clear

Letts, Sunday, 23 August

Mostly clear. High 71°, low 47°.

Pressure30.21 inHg
Wind11.8 mph E
Humidity44%
Visibility—
Dew point43°

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 Letts, 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 Letts, 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.