EN
English Español

As of 05:15 CDT

Weather in Saint Thomas, IL

74°Current weather

Saint Thomas, Sunday, 9 August, 05:15

Partly cloudy. Feels like 75°. High 97°, low 73°.

Pressure30.00 inHg
Wind3 mph S
Humidity94%
Visibility6.2 mi
Dew point71°

Two-week outlook for Saint Thomas, IL: week one averages a high of 91.2° and week two 100.1°, so week two runs 8.9° warmer than week one. Around 1.0 inches of precipitation are expected over the 14 days, across 6 wet days. The nearest weekend, August 9: 97°, dry.

Week one vs week two

WeekHighLowPrecipitationVs normal
1st (August 9 – August 15)91.2°70.9°0.9 in / 6 d—
2nd (August 16 – August 22)100.1°76.9°0.0 in / 0 d—

Weekend weather

Sun, August 9
Mostly clear
97°73°
no precip.
Sat, August 15
Light rain
87°66°
0.09 in
Sun, August 16
Partly cloudy
89°71°
no precip.
Sat, August 22
Clear
110°81°
no precip.
Mon, 10100° / 70°0.33Heavy rain
100 °Heavy rain

Saint Thomas, Monday, 10 August

Heavy rain. High 100°, low 70°.

Pressure29.91 inHg
Wind11.3 mph SW
Humidity40%
Visibility6.2 mi
Dew point68°
Tue, 11101° / 72°0.07Rain
101 °Rain

Saint Thomas, Tuesday, 11 August

Rain. High 101°, low 72°.

Pressure29.88 inHg
Wind11.2 mph SW
Humidity42%
Visibility6.2 mi
Dew point69°
Wed, 1294° / 78°0.06Light rain
94 °Light rain

Saint Thomas, Wednesday, 12 August

Light rain. High 94°, low 78°.

Pressure29.83 inHg
Wind9.5 mph NW
Humidity50%
Visibility6.2 mi
Dew point70°
Thu, 1385° / 72°0.25Light rain
85 °Light rain

Saint Thomas, Thursday, 13 August

Light rain. High 85°, low 72°.

Pressure29.91 inHg
Wind13.4 mph E
Humidity68%
Visibility—
Dew point71°
Fri, 1472° / 66°0.14Light rain
72 °Light rain

Saint Thomas, Friday, 14 August

Light rain. High 72°, low 66°.

Pressure30.06 inHg
Wind13.5 mph E
Humidity81%
Visibility—
Dew point65°
Sat, 1587° / 66°0.09Light rain
87 °Light rain

Saint Thomas, Saturday, 15 August

Light rain. High 87°, low 66°.

Pressure30.12 inHg
Wind10.3 mph SE
Humidity78%
Visibility—
Dew point69°
Sun, 1689° / 71°0Partly cloudy
89 °Partly cloudy

Saint Thomas, Sunday, 16 August

Partly cloudy. High 89°, low 71°.

Pressure30.03 inHg
Wind9.3 mph SE
Humidity64%
Visibility—
Dew point72°
Mon, 1787° / 72°0.02Light rain
87 °Light rain

Saint Thomas, Monday, 17 August

Light rain. High 87°, low 72°.

Pressure30.06 inHg
Wind7.1 mph NE
Humidity59%
Visibility—
Dew point68°
Tue, 1893° / 69°0.02Light rain
93 °Light rain

Saint Thomas, Tuesday, 18 August

Light rain. High 93°, low 69°.

Pressure29.97 inHg
Wind10.2 mph E
Humidity56%
Visibility—
Dew point68°
Wed, 19107° / 78°0Partly cloudy
107 °Partly cloudy

Saint Thomas, Wednesday, 19 August

Partly cloudy. High 107°, low 78°.

Pressure29.88 inHg
Wind10.8 mph SE
Humidity31%
Visibility—
Dew point63°
Thu, 20114° / 83°0Clear
114 °Clear

Saint Thomas, Thursday, 20 August

Clear. High 114°, low 83°.

Pressure29.80 inHg
Wind12.6 mph W
Humidity20%
Visibility—
Dew point57°
Fri, 21100° / 84°0Clear
100 °Clear

Saint Thomas, Friday, 21 August

Clear. High 100°, low 84°.

Pressure29.85 inHg
Wind9.4 mph NW
Humidity30%
Visibility—
Dew point61°
Sat, 22110° / 81°0Clear
110 °Clear

Saint Thomas, Saturday, 22 August

Clear. High 110°, low 81°.

Pressure29.83 inHg
Wind8.8 mph SE
Humidity24%
Visibility—
Dew point59°

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 Saint Thomas, IL, 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.