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As of 18:00 CDT

Weather in Winchester, IA

83°Current weather

Winchester, Saturday, 8 August, 18:00

Clear. Feels like 86°. High 84°, low 65°.

Pressure30.00 inHg
Wind4.8 mph SE
Humidity59%
Visibility6.2 mi
Dew point67°
Sun, 0994° / 71°0Overcast
94 °Overcast

Winchester, Sunday, 9 August

Overcast. High 94°, low 71°.

Pressure29.83 inHg
Wind17.5 mph S
Humidity58%
Visibility6.2 mi
Dew point69°
Mon, 1092° / 71°0.02Light rain
92 °Light rain

Winchester, Monday, 10 August

Light rain. High 92°, low 71°.

Pressure29.85 inHg
Wind9.8 mph SW
Humidity59%
Visibility6.2 mi
Dew point68°
Tue, 1197° / 76°0Overcast
97 °Overcast

Winchester, Tuesday, 11 August

Overcast. High 97°, low 76°.

Pressure29.74 inHg
Wind18.8 mph SW
Humidity43%
Visibility6.2 mi
Dew point67°
Wed, 1288° / 71°0.05Light rain
88 °Light rain

Winchester, Wednesday, 12 August

Light rain. High 88°, low 71°.

Pressure29.85 inHg
Wind13 mph E
Humidity61%
Visibility6.2 mi
Dew point70°
Thu, 1378° / 68°0.33Rain
78 °Rain

Winchester, Thursday, 13 August

Rain. High 78°, low 68°.

Pressure29.91 inHg
Wind11.3 mph NE
Humidity88%
Visibility—
Dew point68°
Fri, 1479° / 60°0Clear
79 °Clear

Winchester, Friday, 14 August

Clear. High 79°, low 60°.

Pressure30.18 inHg
Wind7.2 mph E
Humidity45%
Visibility—
Dew point52°
Sat, 1581° / 58°0Overcast
81 °Overcast

Winchester, Saturday, 15 August

Overcast. High 81°, low 58°.

Pressure30.24 inHg
Wind11.5 mph SE
Humidity45%
Visibility—
Dew point52°
Sun, 1681° / 64°0Light rain
81 °Light rain

Winchester, Sunday, 16 August

Light rain. High 81°, low 64°.

Pressure30.09 inHg
Wind12.9 mph S
Humidity69%
Visibility—
Dew point66°
Mon, 1791° / 67°0Overcast
91 °Overcast

Winchester, Monday, 17 August

Overcast. High 91°, low 67°.

Pressure29.94 inHg
Wind9.2 mph N
Humidity60%
Visibility—
Dew point69°
Tue, 1890° / 71°0Overcast
90 °Overcast

Winchester, Tuesday, 18 August

Overcast. High 90°, low 71°.

Pressure29.97 inHg
Wind7.6 mph E
Humidity55%
Visibility—
Dew point68°
Wed, 1997° / 71°0.05Light rain
97 °Light rain

Winchester, Wednesday, 19 August

Light rain. High 97°, low 71°.

Pressure29.88 inHg
Wind13.6 mph NE
Humidity40%
Visibility—
Dew point62°
Thu, 2085° / 67°0.2Light rain
85 °Light rain

Winchester, Thursday, 20 August

Light rain. High 85°, low 67°.

Pressure29.91 inHg
Wind11.7 mph NE
Humidity54%
Visibility—
Dew point63°
Fri, 2186° / 63°0Mostly clear
86 °Mostly clear

Winchester, Friday, 21 August

Mostly clear. High 86°, low 63°.

Pressure29.97 inHg
Wind8.4 mph E
Humidity44%
Visibility—
Dew point57°
Sat, 2288° / 62°0.11Light rain
88 °Light rain

Winchester, Saturday, 22 August

Light rain. High 88°, low 62°.

Pressure29.91 inHg
Wind17.3 mph NE
Humidity40%
Visibility—
Dew point58°
Sun, 2375° / 52°0Partly cloudy
75 °Partly cloudy

Winchester, Sunday, 23 August

Partly cloudy. High 75°, low 52°.

Pressure30.18 inHg
Wind13.7 mph E
Humidity37%
Visibility—
Dew point42°

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 Winchester, 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 Winchester, 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.