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As of 20:18 CDT

Weather in Williamson, IL

50°Current weather

Williamson, Friday, 16 October, 20:18

Partly cloudy. Feels like 49°. High 59°, low 50°.

Pressure30.36 inHg
Wind14.6 mph N
Humidity88%
Visibility6.2 mi
Dew point47°

Two-week outlook for Williamson, IL: week one averages a high of 66.8° and week two 70.6°, so week two runs 3.8° warmer than week one. Around 1.0 inches of precipitation are expected over the 14 days, across 2 wet days. The nearest weekend, October 17: 60°, dry.

Week one vs week two

WeekHighLowPrecipitationVs normal
1st (October 16 – October 22)66.8°45.5°0.0 in / 0 d—
2nd (October 23 – October 29)70.6°54°1.0 in / 2 d—

Weekend weather

Sat, October 17
Clear
60°41°
no precip.
Sun, October 18
Clear
63°41°
no precip.
Sat, October 24
Overcast
78°55°
no precip.
Sun, October 25
Overcast
67°56°
no precip.
Sat, 1760° / 41°0Clear
60 °Clear

Williamson, Saturday, 17 October

Clear. High 60°, low 41°.

Pressure30.56 inHg
Wind1.3 mph NE
Humidity46%
Visibility6.2 mi
Dew point34°
Sun, 1863° / 41°0Clear
63 °Clear

Williamson, Sunday, 18 October

Clear. High 63°, low 41°.

Pressure30.47 inHg
Wind8.2 mph S
Humidity38%
Visibility6.2 mi
Dew point34°
Mon, 1968° / 42°0Partly cloudy
68 °Partly cloudy

Williamson, Monday, 19 October

Partly cloudy. High 68°, low 42°.

Pressure30.42 inHg
Wind3.9 mph S
Humidity42%
Visibility6.2 mi
Dew point41°
Tue, 2071° / 45°0Clear
71 °Clear

Williamson, Tuesday, 20 October

Clear. High 71°, low 45°.

Pressure30.36 inHg
Wind2.5 mph S
Humidity42%
Visibility6.2 mi
Dew point43°
Wed, 2172° / 47°0Overcast
72 °Overcast

Williamson, Wednesday, 21 October

Overcast. High 72°, low 47°.

Pressure30.27 inHg
Wind3.8 mph E
Humidity36%
Visibility—
Dew point40°
Thu, 2275° / 52°0Mostly clear
75 °Mostly clear

Williamson, Thursday, 22 October

Mostly clear. High 75°, low 52°.

Pressure30.18 inHg
Wind5 mph E
Humidity34%
Visibility—
Dew point40°
Fri, 2377° / 55°0Overcast
77 °Overcast

Williamson, Friday, 23 October

Overcast. High 77°, low 55°.

Pressure30.21 inHg
Wind8.4 mph SE
Humidity28%
Visibility—
Dew point37°
Sat, 2478° / 55°0Overcast
78 °Overcast

Williamson, Saturday, 24 October

Overcast. High 78°, low 55°.

Pressure30.21 inHg
Wind8.7 mph S
Humidity26%
Visibility—
Dew point35°
Sun, 2567° / 56°0Overcast
67 °Overcast

Williamson, Sunday, 25 October

Overcast. High 67°, low 56°.

Pressure30.27 inHg
Wind11.7 mph N
Humidity43%
Visibility—
Dew point42°
Mon, 2672° / 53°0Overcast
72 °Overcast

Williamson, Monday, 26 October

Overcast. High 72°, low 53°.

Pressure30.27 inHg
Wind10 mph NE
Humidity43%
Visibility—
Dew point43°
Tue, 2778° / 57°0.03Light rain
78 °Light rain

Williamson, Tuesday, 27 October

Light rain. High 78°, low 57°.

Pressure30.15 inHg
Wind9.9 mph SW
Humidity32%
Visibility—
Dew point42°
Wed, 2864° / 53°0.2Light rain
64 °Light rain

Williamson, Wednesday, 28 October

Light rain. High 64°, low 53°.

Pressure30.12 inHg
Wind10.4 mph N
Humidity76%
Visibility—
Dew point54°
Thu, 2960° / 48°0.78Rain
60 °Rain

Williamson, Thursday, 29 October

Rain. High 60°, low 48°.

Pressure29.88 inHg
Wind16.4 mph SE
Humidity92%
Visibility—
Dew point49°

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 Williamson, 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.