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As of 01:53 CDT

Weather in St. Johns, IL

72°Current weather

St. Johns, Sunday, 9 August, 01:53

Clear. Feels like 73°. High 93°, low 72°.

Pressure30.03 inHg
Wind6 mph S
Humidity91%
Visibility6.2 mi
Dew point69°

Two-week outlook for St. Johns, IL: week one averages a high of 93.2° and week two 100.5°, so week two runs 7.3° warmer than week one. Around 0.7 inches of precipitation are expected over the 14 days, across 5 wet days. The nearest weekend, August 9: 93°, dry.

Week one vs week two

WeekHighLowPrecipitationVs normal
1st (August 9 – August 15)93.2°71.8°0.6 in / 4 d—
2nd (August 16 – August 22)100.5°75.2°0.1 in / 1 d—

Weekend weather

Sun, August 9
Clear
93°72°
no precip.
Sat, August 15
Light rain
92°66°
0.04 in
Sun, August 16
Partly cloudy
93°70°
no precip.
Sat, August 22
Mostly clear
111°79°
no precip.
Mon, 1097° / 76°0Clear
97 °Clear

St. Johns, Monday, 10 August

Clear. High 97°, low 76°.

Pressure29.97 inHg
Wind14.8 mph SW
Humidity49%
Visibility6.2 mi
Dew point71°
Tue, 11100° / 75°0Light rain
100 °Light rain

St. Johns, Tuesday, 11 August

Light rain. High 100°, low 75°.

Pressure29.91 inHg
Wind12.8 mph SW
Humidity41%
Visibility6.2 mi
Dew point69°
Wed, 1299° / 73°0.13Rain
99 °Rain

St. Johns, Wednesday, 12 August

Rain. High 99°, low 73°.

Pressure29.83 inHg
Wind12.9 mph W
Humidity41%
Visibility6.2 mi
Dew point69°
Thu, 1393° / 72°0.24Light rain
93 °Light rain

St. Johns, Thursday, 13 August

Light rain. High 93°, low 72°.

Pressure29.91 inHg
Wind14.3 mph NE
Humidity65%
Visibility—
Dew point71°
Fri, 1479° / 69°0.18Rain
79 °Rain

St. Johns, Friday, 14 August

Rain. High 79°, low 69°.

Pressure30.03 inHg
Wind13.9 mph E
Humidity78%
Visibility—
Dew point67°
Sat, 1592° / 66°0.04Light rain
92 °Light rain

St. Johns, Saturday, 15 August

Light rain. High 92°, low 66°.

Pressure30.12 inHg
Wind14 mph E
Humidity62%
Visibility—
Dew point68°
Sun, 1693° / 70°0Partly cloudy
93 °Partly cloudy

St. Johns, Sunday, 16 August

Partly cloudy. High 93°, low 70°.

Pressure30.00 inHg
Wind12.8 mph NW
Humidity50%
Visibility—
Dew point69°
Mon, 1789° / 71°0.09Light rain
89 °Light rain

St. Johns, Monday, 17 August

Light rain. High 89°, low 71°.

Pressure30.06 inHg
Wind7 mph E
Humidity61%
Visibility—
Dew point69°
Tue, 1892° / 69°0.04Light rain
92 °Light rain

St. Johns, Tuesday, 18 August

Light rain. High 92°, low 69°.

Pressure29.97 inHg
Wind11.2 mph E
Humidity53%
Visibility—
Dew point67°
Wed, 1999° / 74°0Overcast
99 °Overcast

St. Johns, Wednesday, 19 August

Overcast. High 99°, low 74°.

Pressure29.91 inHg
Wind11.3 mph S
Humidity39%
Visibility—
Dew point67°
Thu, 20113° / 81°0Partly cloudy
113 °Partly cloudy

St. Johns, Thursday, 20 August

Partly cloudy. High 113°, low 81°.

Pressure29.83 inHg
Wind12 mph SW
Humidity19%
Visibility—
Dew point56°
Fri, 21107° / 82°0Clear
107 °Clear

St. Johns, Friday, 21 August

Clear. High 107°, low 82°.

Pressure29.85 inHg
Wind12.5 mph SW
Humidity23%
Visibility—
Dew point57°
Sat, 22111° / 79°0Mostly clear
111 °Mostly clear

St. Johns, Saturday, 22 August

Mostly clear. High 111°, low 79°.

Pressure29.85 inHg
Wind7 mph S
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 St. Johns, 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.