10-day forecast for Saint Thomas, MN: 54° to 89°, with precipitation expected on 2 days. The table below breaks each day into morning, afternoon, evening and overnight.
89°
Best day: Monday, August 10
85° · 0.75 in
Worst day: Tuesday, August 11
Tap any day below to see morning, afternoon, evening and overnight.
Sun, 0980° / 64°0.31
Morning64°feels 65°
Afternoon73°feels 74°
Evening77°feels 77°
Overnight66°feels 66°
80 °
Saint Thomas, Sunday, 9 August
Rain. High 80°, low 64°.
Pressure29.83 inHg
Wind8.4 mph SE
Humidity77%
Visibility6.2 mi
Dew point70°
Mon, 1089° / 66°0
Morning69°feels 70°
Afternoon88°feels 90°
Evening78°feels 79°
Overnight70°feels 71°
89 °
Saint Thomas, Monday, 10 August
Overcast. High 89°, low 66°.
Pressure29.88 inHg
Wind6.9 mph SE
Humidity59%
Visibility6.2 mi
Dew point68°
Tue, 1185° / 63°0.75
Morning67°feels 67°
Afternoon82°feels 84°
Evening76°feels 77°
Overnight70°feels 71°
85 °
Saint Thomas, Tuesday, 11 August
Heavy rain. High 85°, low 63°.
Pressure29.83 inHg
Wind6.4 mph N
Humidity60%
Visibility6.2 mi
Dew point64°
Wed, 1283° / 62°0
Morning66°feels 65°
Afternoon83°feels 81°
Evening72°feels 71°
Overnight67°feels 66°
83 °
Saint Thomas, Wednesday, 12 August
Clear. High 83°, low 62°.
Pressure29.94 inHg
Wind8.7 mph N
Humidity38%
Visibility6.2 mi
Dew point51°
Thu, 1372° / 62°0
Morning65°feels 64°
Afternoon70°feels 69°
Evening71°feels 70°
Overnight62°feels 61°
72 °
Saint Thomas, Thursday, 13 August
Overcast. High 72°, low 62°.
Pressure30.03 inHg
Wind7.8 mph NE
Humidity52%
Visibility—
Dew point51°
Fri, 1482° / 56°0
Morning63°feels 62°
Afternoon78°feels 77°
Evening73°feels 73°
Overnight64°feels 63°
82 °
Saint Thomas, Friday, 14 August
Partly cloudy. High 82°, low 56°.
Pressure30.12 inHg
Wind7.1 mph S
Humidity32%
Visibility—
Dew point44°
Sat, 1579° / 60°0
Morning66°feels 66°
Afternoon78°feels 78°
Evening71°feels 70°
Overnight62°feels 62°
79 °
Saint Thomas, Saturday, 15 August
Overcast. High 79°, low 60°.
Pressure30.21 inHg
Wind11.4 mph SE
Humidity41%
Visibility—
Dew point51°
Sun, 1681° / 54°0
Morning63°feels 63°
Afternoon77°feels 78°
Evening76°feels 76°
Overnight65°feels 66°
81 °
Saint Thomas, Sunday, 16 August
Overcast. High 81°, low 54°.
Pressure30.09 inHg
Wind7.1 mph S
Humidity54%
Visibility—
Dew point57°
Mon, 1787° / 65°0
Morning71°feels 71°
Afternoon84°feels 83°
Evening82°feels 85°
Overnight71°feels 71°
87 °
Saint Thomas, Monday, 17 August
Overcast. High 87°, low 65°.
Pressure30.00 inHg
Wind8.9 mph S
Humidity36%
Visibility—
Dew point52°
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 Thomas, MN 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.