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As of 03:56 CDT

Weather in Castalia, IA

63°Current weather

Castalia, Sunday, 9 August, 03:56

Overcast. Feels like 63°. High 76°, low 63°.

Pressure29.97 inHg
Wind0.6 mph NE
Humidity89%
Visibility6.2 mi
Dew point59°

Two-week outlook for Castalia, IA: week one averages a high of 76° and week two 82.1°, so week two runs 6.1° warmer than week one. Around 0.8 inches of precipitation are expected over the 14 days, across 3 wet days. The nearest weekend, August 9: 76°, with precipitation.

Week one vs week two

WeekHighLowPrecipitationVs normal
1st (August 9 – August 15)76°62.9°0.7 in / 2 d—
2nd (August 16 – August 22)82.1°65°0.1 in / 1 d—

Weekend weather

Sun, August 9
Rain
76°63°
0.43 in
Sat, August 15
Overcast
70°60°
no precip.
Sun, August 16
Light rain
75°64°
0.02 in
Sat, August 22
Light rain
86°66°
0.02 in
Mon, 1081° / 69°0Overcast
81 °Overcast

Castalia, Monday, 10 August

Overcast. High 81°, low 69°.

Pressure29.91 inHg
Wind2.7 mph E
Humidity89%
Visibility6.2 mi
Dew point70°
Tue, 1182° / 69°0.23Rain
82 °Rain

Castalia, Tuesday, 11 August

Rain. High 82°, low 69°.

Pressure29.80 inHg
Wind3.3 mph NE
Humidity80%
Visibility6.2 mi
Dew point71°
Wed, 1279° / 67°0Partly cloudy
79 °Partly cloudy

Castalia, Wednesday, 12 August

Partly cloudy. High 79°, low 67°.

Pressure29.88 inHg
Wind6.2 mph N
Humidity62%
Visibility6.2 mi
Dew point63°
Thu, 1371° / 58°0Overcast
71 °Overcast

Castalia, Thursday, 13 August

Overcast. High 71°, low 58°.

Pressure30.06 inHg
Wind7.5 mph NE
Humidity61%
Visibility—
Dew point55°
Fri, 1473° / 55°0Overcast
73 °Overcast

Castalia, Friday, 14 August

Overcast. High 73°, low 55°.

Pressure30.18 inHg
Wind8.8 mph E
Humidity61%
Visibility—
Dew point55°
Sat, 1570° / 60°0Overcast
70 °Overcast

Castalia, Saturday, 15 August

Overcast. High 70°, low 60°.

Pressure30.21 inHg
Wind10 mph SE
Humidity70%
Visibility—
Dew point55°
Sun, 1675° / 64°0.02Light rain
75 °Light rain

Castalia, Sunday, 16 August

Light rain. High 75°, low 64°.

Pressure30.09 inHg
Wind7.9 mph NW
Humidity75%
Visibility—
Dew point64°
Mon, 1776° / 59°0Overcast
76 °Overcast

Castalia, Monday, 17 August

Overcast. High 76°, low 59°.

Pressure30.12 inHg
Wind8.5 mph W
Humidity62%
Visibility—
Dew point58°
Tue, 1881° / 60°0.06Light rain
81 °Light rain

Castalia, Tuesday, 18 August

Light rain. High 81°, low 60°.

Pressure29.94 inHg
Wind14.1 mph S
Humidity79%
Visibility—
Dew point67°
Wed, 1985° / 68°0Overcast
85 °Overcast

Castalia, Wednesday, 19 August

Overcast. High 85°, low 68°.

Pressure29.83 inHg
Wind10.8 mph SE
Humidity74%
Visibility—
Dew point71°
Thu, 2092° / 73°0Partly cloudy
92 °Partly cloudy

Castalia, Thursday, 20 August

Partly cloudy. High 92°, low 73°.

Pressure29.80 inHg
Wind10.3 mph S
Humidity59%
Visibility—
Dew point71°
Fri, 2181° / 64°0Partly cloudy
81 °Partly cloudy

Castalia, Friday, 21 August

Partly cloudy. High 81°, low 64°.

Pressure29.97 inHg
Wind8.9 mph NE
Humidity57%
Visibility—
Dew point62°
Sat, 2286° / 66°0.02Light rain
86 °Light rain

Castalia, Saturday, 22 August

Light rain. High 86°, low 66°.

Pressure29.83 inHg
Wind15.2 mph E
Humidity71%
Visibility—
Dew point68°

About this forecast

Can I plan a trip on a 2-week forecast?

Week one is solid for planning — accuracy is high. Week two shows the trend: go by the averages and the comparison with normal, and check the details closer to the date.

What does the "Vs normal" column mean?

It is the gap between the forecast and the climate normal for those same dates in Castalia, IA, computed over 60 years. A positive value means the week runs warmer than usual.

Why are weekends shown separately?

Saturday and Sunday plans are what people check most, so we give them their own cards with temperature and precipitation.