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St Thomas, Saint Thomas

83°F
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St Thomas

Saint Thomas

83°
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St Thomas, Saint Thomas Weather
Today WinterCast Local {stormName} Tracker Hourly 10-Day Radar MinuteCast® Monthly Air Quality Health & Activities

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Today Hourly 10-Day Radar MinuteCast®

Monthly

 Air Quality Health & Activities

September

January February March April May June July August September October November December

2026

2025 2026 2027

10-Day

S
M
T
W
T
F
S
30
Mostly sunny
91°
79°
31
Mostly sunny
91°
80°
1
Cloudy
87°
81°
2
Decreasing clouds
88°
82°
3
A t-storm around in the a.m.
88°
81°
4
A t-storm around in the a.m.
87°
82°
5
Sunshine and a few clouds
87°
82°
6
A shower in the morning
88°
81°
7
A stray morning thundershower
87°
81°
8
A brief t-storm in the p.m.
87°
80°
9
A shower in the afternoon
88°
82°
10
An afternoon thunderstorm
87°
81°
11
A shower and thunderstorm
87°
81°
12
A brief t-storm in the a.m.
88°
80°
13
A t-storm around in the a.m.
87°
81°
14
Mostly sunny
87°
82°
15
An afternoon thunderstorm
88°
82°
16
A t-storm in the afternoon
88°
81°
17
Mostly sunny and humid
87°
82°
18
A t-storm around in the a.m.
87°
81°
19
Mostly sunny
88°
80°
20
A stray morning thundershower
87°
81°
21
A t-storm in the afternoon
87°
81°
22
Sunshine and a few clouds
88°
82°
23
An afternoon thunderstorm
87°
81°
24
An a.m. t-storm; mostly sunny
86°
81°
25
An a.m. t-storm; partly sunny
87°
80°
26
Partly sunny
87°
81°
27
Humid; a stray p.m. t-shower
88°
81°
28
Mostly sunny
87°
80°
29
Increasing cloudiness
87°
81°
30
Cloudy
88°
81°
1
Increasing amounts of sun
87°
80°
2
Showers around in the morning
88°
79°
3
A few afternoon showers
88°
79°

Temperature Graph

°F
90° 86° 82° 78° 74° Sep
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo

September Weather in St Thomas

St Thomas's September 2026 forecast shows daily high temperatures ranging from 86° to 91°, with overnight lows between 79° and 82°. The average high for September is 88° with an average low of 81°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how September weather will actually feel in St Thomas. See also: October | November | December.

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World Central America US Virgin Islands Saint Thomas St Thomas

Weather Near St Thomas:

  • Red Hook, Saint Thomas
  • Road Town, British Virgin Islands
  • Tutu, Saint Thomas
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