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As of 23:23 CDT

Weather in Derby, IL

73°Current weather

Derby, Saturday, 8 August, 23:23

Clear. Feels like 74°. High 89°, low 73°.

Pressure30.03 inHg
Wind5.1 mph S
Humidity94%
Visibility6.2 mi
Dew point71°

Two-week outlook for Derby, IL: week one averages a high of 89.2° and week two 85.4°, so week two runs 3.8° cooler than week one. Around 2.5 inches of precipitation are expected over the 14 days, across 8 wet days. The nearest weekend, August 8: 89°, dry.

Week one vs week two

WeekHighLowPrecipitationVs normal
1st (August 8 – August 14)89.2°72.7°1.7 in / 3 d—
2nd (August 15 – August 21)85.4°67.2°0.8 in / 5 d—

Weekend weather

Sat, August 8
Light rain
89°73°
0.03 in
Sun, August 9
Clear
92°73°
no precip.
Sat, August 15
Light rain
79°67°
0.16 in
Sun, August 16
Light rain
93°67°
0.13 in
Sun, 0992° / 73°0Clear
92 °Clear

Derby, Sunday, 9 August

Clear. High 92°, low 73°.

Pressure30.03 inHg
Wind10.2 mph SW
Humidity50%
Visibility6.2 mi
Dew point69°
Mon, 1096° / 74°0Overcast
96 °Overcast

Derby, Monday, 10 August

Overcast. High 96°, low 74°.

Pressure30.03 inHg
Wind11.1 mph SW
Humidity51%
Visibility6.2 mi
Dew point69°
Tue, 1199° / 77°0Clear
99 °Clear

Derby, Tuesday, 11 August

Clear. High 99°, low 77°.

Pressure29.94 inHg
Wind13.1 mph SW
Humidity41%
Visibility6.2 mi
Dew point68°
Wed, 1290° / 73°0.31Rain
90 °Rain

Derby, Wednesday, 12 August

Rain. High 90°, low 73°.

Pressure29.85 inHg
Wind3.7 mph NW
Humidity61%
Visibility6.2 mi
Dew point70°
Thu, 1377° / 70°0.47Rain
77 °Rain

Derby, Thursday, 13 August

Rain. High 77°, low 70°.

Pressure29.94 inHg
Wind7.1 mph N
Humidity93%
Visibility—
Dew point72°
Fri, 1482° / 70°0.93Heavy rain
82 °Heavy rain

Derby, Friday, 14 August

Heavy rain. High 82°, low 70°.

Pressure30.00 inHg
Wind10 mph NE
Humidity73%
Visibility—
Dew point71°
Sat, 1579° / 67°0.16Light rain
79 °Light rain

Derby, Saturday, 15 August

Light rain. High 79°, low 67°.

Pressure30.21 inHg
Wind10.4 mph E
Humidity78%
Visibility—
Dew point67°
Sun, 1693° / 67°0.13Light rain
93 °Light rain

Derby, Sunday, 16 August

Light rain. High 93°, low 67°.

Pressure30.03 inHg
Wind7.9 mph E
Humidity52%
Visibility—
Dew point68°
Mon, 1789° / 71°0.1Light rain
89 °Light rain

Derby, Monday, 17 August

Light rain. High 89°, low 71°.

Pressure30.03 inHg
Wind6 mph NE
Humidity75%
Visibility—
Dew point73°
Tue, 1891° / 70°0.33Rain
91 °Rain

Derby, Tuesday, 18 August

Rain. High 91°, low 70°.

Pressure29.97 inHg
Wind9.8 mph NW
Humidity58%
Visibility—
Dew point71°
Wed, 1991° / 71°0Overcast
91 °Overcast

Derby, Wednesday, 19 August

Overcast. High 91°, low 71°.

Pressure29.91 inHg
Wind5.9 mph N
Humidity49%
Visibility—
Dew point66°
Thu, 2079° / 63°0Clear
79 °Clear

Derby, Thursday, 20 August

Clear. High 79°, low 63°.

Pressure30.00 inHg
Wind10.2 mph NE
Humidity51%
Visibility—
Dew point56°
Fri, 2177° / 61°0.06Light rain
77 °Light rain

Derby, Friday, 21 August

Light rain. High 77°, low 61°.

Pressure30.03 inHg
Wind6.9 mph NE
Humidity58%
Visibility—
Dew point55°

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 Derby, 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.