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As of 19:03 CDT

Weather in St. Marys, IA

89°Current weather

St. Marys, Sunday, 9 August, 19:03

Clear. Feels like 101°. High 89°, low 71°.

Pressure29.80 inHg
Wind5.7 mph N
Humidity79%
Visibility6.2 mi
Dew point80°

Two-week outlook for St. Marys, IA: week one averages a high of 93.4° and week two 93.8°, so both weeks look similar in temperature. Around 0.8 inches of precipitation are expected over the 14 days, across 5 wet days. The nearest weekend, August 9: 89°, dry.

Week one vs week two

WeekHighLowPrecipitationVs normal
1st (August 9 – August 15)93.4°71.6°0.4 in / 2 d—
2nd (August 16 – August 22)93.8°66.4°0.4 in / 3 d—

Weekend weather

Sun, August 9
Clear
89°71°
no precip.
Sat, August 15
Light rain
102°73°
no precip.
Sun, August 16
Overcast
90°66°
no precip.
Sat, August 22
Partly cloudy
91°61°
no precip.
Mon, 1092° / 72°0Light rain
92 °Light rain

St. Marys, Monday, 10 August

Light rain. High 92°, low 72°.

Pressure29.85 inHg
Wind7.5 mph E
Humidity47%
Visibility6.2 mi
Dew point65°
Tue, 11102° / 77°0.02Light rain
102 °Light rain

St. Marys, Tuesday, 11 August

Light rain. High 102°, low 77°.

Pressure29.71 inHg
Wind13.8 mph W
Humidity30%
Visibility6.2 mi
Dew point61°
Wed, 1291° / 70°0.03Light rain
91 °Light rain

St. Marys, Wednesday, 12 August

Light rain. High 91°, low 70°.

Pressure29.88 inHg
Wind12.1 mph E
Humidity68%
Visibility6.2 mi
Dew point67°
Thu, 1379° / 69°0.26Rain
79 °Rain

St. Marys, Thursday, 13 August

Rain. High 79°, low 69°.

Pressure29.94 inHg
Wind3.7 mph N
Humidity95%
Visibility6.2 mi
Dew point71°
Fri, 1499° / 70°0.09Light rain
99 °Light rain

St. Marys, Friday, 14 August

Light rain. High 99°, low 70°.

Pressure29.85 inHg
Wind14.6 mph E
Humidity49%
Visibility—
Dew point66°
Sat, 15102° / 73°0.01Light rain
102 °Light rain

St. Marys, Saturday, 15 August

Light rain. High 102°, low 73°.

Pressure29.85 inHg
Wind18 mph NW
Humidity36%
Visibility—
Dew point63°
Sun, 1690° / 66°0Overcast
90 °Overcast

St. Marys, Sunday, 16 August

Overcast. High 90°, low 66°.

Pressure30.03 inHg
Wind13.1 mph NE
Humidity48%
Visibility—
Dew point61°
Mon, 1793° / 66°0.13Light rain
93 °Light rain

St. Marys, Monday, 17 August

Light rain. High 93°, low 66°.

Pressure29.85 inHg
Wind9.8 mph SE
Humidity70%
Visibility—
Dew point67°
Tue, 1899° / 71°0Overcast
99 °Overcast

St. Marys, Tuesday, 18 August

Overcast. High 99°, low 71°.

Pressure29.88 inHg
Wind13.9 mph NW
Humidity21%
Visibility—
Dew point47°
Wed, 1989° / 69°0.14Light rain
89 °Light rain

St. Marys, Wednesday, 19 August

Light rain. High 89°, low 69°.

Pressure30.00 inHg
Wind7.8 mph E
Humidity44%
Visibility—
Dew point58°
Thu, 20106° / 68°0.16Light rain
106 °Light rain

St. Marys, Thursday, 20 August

Light rain. High 106°, low 68°.

Pressure29.77 inHg
Wind14.2 mph W
Humidity27%
Visibility—
Dew point57°
Fri, 2188° / 64°0Partly cloudy
88 °Partly cloudy

St. Marys, Friday, 21 August

Partly cloudy. High 88°, low 64°.

Pressure29.94 inHg
Wind13.9 mph NE
Humidity34%
Visibility—
Dew point53°
Sat, 2291° / 61°0Partly cloudy
91 °Partly cloudy

St. Marys, Saturday, 22 August

Partly cloudy. High 91°, low 61°.

Pressure30.00 inHg
Wind9.8 mph SE
Humidity32%
Visibility—
Dew point50°

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 St. Marys, 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.