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As of 05:00 CDT

Weather in Williamstown, IA

66°Current weather

Williamstown, Sunday, 9 August, 05:00

Overcast. Feels like 67°. High 80°, low 65°.

Pressure29.91 inHg
Wind4.2 mph SE
Humidity99%
Visibility6.2 mi
Dew point65°

10-day forecast for Williamstown, IA: 55° to 84°, with precipitation expected on 3 days. The table below breaks each day into morning, afternoon, evening and overnight.

84°
Best day: Tuesday, August 18
80° · 0.27 in
Worst day: Sunday, August 9

Tap any day below to see morning, afternoon, evening and overnight.

Mon, 1082° / 69°0.03Light rain
MorningOvercast70°feels 71°
AfternoonOvercast81°feels 85°
EveningClear76°feels 77°
OvernightClear72°feels 73°
82 °Light rain

Williamstown, Monday, 10 August

Light rain. High 82°, low 69°.

Pressure29.88 inHg
Wind7.6 mph E
Humidity95%
Visibility6.2 mi
Dew point71°
Tue, 1184° / 69°0.13Rain
MorningOvercast72°feels 73°
AfternoonClear84°feels 90°
EveningClear76°feels 78°
OvernightOvercast71°feels 73°
84 °Rain

Williamstown, Tuesday, 11 August

Rain. High 84°, low 69°.

Pressure29.80 inHg
Wind4 mph NW
Humidity71%
Visibility6.2 mi
Dew point72°
Wed, 1280° / 66°0Partly cloudy
MorningOvercast69°feels 70°
AfternoonClear80°feels 81°
EveningClear71°feels 71°
OvernightOvercast71°feels 72°
80 °Partly cloudy

Williamstown, Wednesday, 12 August

Partly cloudy. High 80°, low 66°.

Pressure29.88 inHg
Wind8.7 mph NE
Humidity63%
Visibility6.2 mi
Dew point65°
Thu, 1370° / 59°0.11Light rain
MorningLight rain62°feels 61°
AfternoonLight rain68°feels 68°
EveningLight rain61°feels 62°
OvernightOvercast64°feels 64°
70 °Light rain

Williamstown, Thursday, 13 August

Light rain. High 70°, low 59°.

Pressure30.06 inHg
Wind9.4 mph E
Humidity66%
Visibility—
Dew point56°
Fri, 1472° / 55°0Overcast
MorningOvercast60°feels 60°
AfternoonOvercast71°feels 71°
EveningOvercast67°feels 67°
OvernightOvercast62°feels 62°
72 °Overcast

Williamstown, Friday, 14 August

Overcast. High 72°, low 55°.

Pressure30.15 inHg
Wind12 mph E
Humidity61%
Visibility—
Dew point56°
Sat, 1570° / 60°0.02Light rain
MorningLight rain64°feels 64°
AfternoonLight rain69°feels 69°
EveningLight rain65°feels 66°
OvernightLight rain64°feels 64°
70 °Light rain

Williamstown, Saturday, 15 August

Light rain. High 70°, low 60°.

Pressure30.18 inHg
Wind11.5 mph SE
Humidity68%
Visibility—
Dew point58°
Sun, 1677° / 64°0.01Light rain
MorningLight rain68°feels 69°
AfternoonLight rain76°feels 77°
EveningLight rain74°feels 74°
OvernightLight rain67°feels 67°
77 °Light rain

Williamstown, Sunday, 16 August

Light rain. High 77°, low 64°.

Pressure30.09 inHg
Wind8.7 mph NW
Humidity71%
Visibility—
Dew point64°
Mon, 1778° / 59°0Overcast
MorningOvercast64°feels 64°
AfternoonOvercast76°feels 77°
EveningOvercast72°feels 73°
OvernightOvercast64°feels 64°
78 °Overcast

Williamstown, Monday, 17 August

Overcast. High 78°, low 59°.

Pressure30.09 inHg
Wind7.8 mph SE
Humidity57%
Visibility—
Dew point58°
Tue, 1884° / 63°0Overcast
MorningOvercast69°feels 70°
AfternoonOvercast80°feels 84°
EveningOvercast79°feels 83°
OvernightOvercast71°feels 72°
84 °Overcast

Williamstown, Tuesday, 18 August

Overcast. High 84°, low 63°.

Pressure29.94 inHg
Wind14.8 mph S
Humidity69%
Visibility—
Dew point67°

About this forecast

How reliable is a 10-day forecast?

The first 3–5 days are the most reliable, typically within 2–4°. From day six to ten the models show the trend: the direction of change is right more often than the exact numbers.

What does the time-of-day table show?

Temperature in Williamstown, IA around 8am, 2pm, 8pm and 2am each day — handy for planning a walk, a drive or work outdoors.

How is the best day chosen?

We weigh the daytime high against precipitation: a warm, dry day scores highest.