10-day forecast for Saint Marys, TN: 70° to 99°, with precipitation expected on 5 days. The table below breaks each day into morning, afternoon, evening and overnight.
99°
Best day: Sunday, August 16
90° · 0.3 in
Worst day: Monday, August 10
Tap any day below to see morning, afternoon, evening and overnight.
Mon, 1090° / 71°0.3
Morning78°feels 79°
Afternoon89°feels 93°
Evening74°feels 75°
Overnight74°feels 75°
90 °
Saint Marys, Monday, 10 August
Rain. High 90°, low 71°.
Pressure30.12 inHg
Wind6.6 mph SW
Humidity62%
Visibility6.2 mi
Dew point72°
Tue, 1193° / 72°0.05
Morning75°feels 76°
Afternoon92°feels 98°
Evening78°feels 79°
Overnight74°feels 75°
93 °
Saint Marys, Tuesday, 11 August
Light rain. High 93°, low 72°.
Pressure30.06 inHg
Wind7.7 mph SW
Humidity58%
Visibility6.2 mi
Dew point73°
Wed, 1292° / 71°0.25
Morning77°feels 79°
Afternoon93°feels 99°
Evening71°feels 71°
Overnight74°feels 75°
92 °
Saint Marys, Wednesday, 12 August
Rain. High 92°, low 71°.
Pressure29.97 inHg
Wind11.5 mph W
Humidity54%
Visibility6.2 mi
Dew point71°
Thu, 1392° / 72°0.11
Morning75°feels 76°
Afternoon88°feels 96°
Evening82°feels 90°
Overnight71°feels 73°
92 °
Saint Marys, Thursday, 13 August
Light rain. High 92°, low 72°.
Pressure29.97 inHg
Wind8.1 mph SE
Humidity57%
Visibility—
Dew point70°
Fri, 1495° / 75°0.01
Morning80°feels 83°
Afternoon92°feels 98°
Evening86°feels 92°
Overnight81°feels 84°
95 °
Saint Marys, Friday, 14 August
Light rain. High 95°, low 75°.
Pressure30.06 inHg
Wind9.7 mph W
Humidity48%
Visibility—
Dew point68°
Sat, 1596° / 75°0
Morning80°feels 82°
Afternoon93°feels 97°
Evening85°feels 91°
Overnight80°feels 82°
96 °
Saint Marys, Saturday, 15 August
Partly cloudy. High 96°, low 75°.
Pressure30.15 inHg
Wind7.7 mph W
Humidity41%
Visibility—
Dew point64°
Sun, 1699° / 76°0
Morning82°feels 83°
Afternoon94°feels 100°
Evening87°feels 92°
Overnight82°feels 83°
99 °
Saint Marys, Sunday, 16 August
Partly cloudy. High 99°, low 76°.
Pressure30.09 inHg
Wind7 mph SE
Humidity40%
Visibility—
Dew point65°
Mon, 1798° / 75°0
Morning81°feels 83°
Afternoon94°feels 99°
Evening85°feels 93°
Overnight78°feels 78°
98 °
Saint Marys, Monday, 17 August
Clear. High 98°, low 75°.
Pressure29.97 inHg
Wind10.5 mph NE
Humidity38%
Visibility—
Dew point64°
Tue, 1890° / 73°0
Morning79°feels 82°
Afternoon89°feels 96°
Evening84°feels 91°
Overnight80°feels 83°
90 °
Saint Marys, Tuesday, 18 August
Overcast. High 90°, low 73°.
Pressure29.94 inHg
Wind8.7 mph S
Humidity54%
Visibility—
Dew point69°
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 Saint Marys, TN 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.