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As of 10:32 CDT

Weather in Petersburg, IL

83°Current weather

Petersburg, Sunday, 9 August, 10:32

Mostly clear. Feels like 83°. High 92°, low 70°.

Pressure29.97 inHg
Wind12 mph S
Humidity39%
Visibility6.2 mi
Dew point56°

10-day forecast for Petersburg, IL: 61° to 97°, with precipitation expected on 5 days. The table below breaks each day into morning, afternoon, evening and overnight.

96°
Best day: Monday, August 10
79° · 2.46 in
Worst day: Thursday, August 13

Tap any day below to see morning, afternoon, evening and overnight.

Mon, 1096° / 78°0Overcast
MorningPartly cloudy80°feels 80°
AfternoonOvercast94°feels 103°
EveningOvercast87°feels 94°
OvernightClear82°feels 85°
96 °Overcast

Petersburg, Monday, 10 August

Overcast. High 96°, low 78°.

Pressure29.91 inHg
Wind11 mph SW
Humidity46%
Visibility6.2 mi
Dew point68°
Tue, 1197° / 72°0.26Rain
MorningLight rain74°feels 75°
AfternoonOvercast96°feels 102°
EveningMostly clear85°feels 89°
OvernightRain76°feels 77°
97 °Rain

Petersburg, Tuesday, 11 August

Rain. High 97°, low 72°.

Pressure29.85 inHg
Wind15.9 mph SW
Humidity52%
Visibility6.2 mi
Dew point70°
Wed, 1292° / 71°0.18Rain
MorningOvercast75°feels 77°
AfternoonClear91°feels 97°
EveningLight rain81°feels 86°
OvernightLight rain75°feels 76°
92 °Rain

Petersburg, Wednesday, 12 August

Rain. High 92°, low 71°.

Pressure29.83 inHg
Wind3.9 mph NE
Humidity58%
Visibility6.2 mi
Dew point71°
Thu, 1379° / 69°2.46Heavy rain
MorningRain71°feels 73°
AfternoonHeavy rain78°feels 78°
EveningHeavy rain73°feels 74°
OvernightHeavy rain71°feels 72°
79 °Heavy rain

Petersburg, Thursday, 13 August

Heavy rain. High 79°, low 69°.

Pressure29.88 inHg
Wind15.7 mph E
Humidity80%
Visibility—
Dew point71°
Fri, 1476° / 67°0.51Rain
MorningRain69°feels 70°
AfternoonRain74°feels 75°
EveningRain74°feels 75°
OvernightRain69°feels 71°
76 °Rain

Petersburg, Friday, 14 August

Rain. High 76°, low 67°.

Pressure30.06 inHg
Wind13.4 mph E
Humidity86%
Visibility—
Dew point68°
Sat, 1585° / 67°0.08Light rain
MorningLight rain71°feels 71°
AfternoonLight rain80°feels 80°
EveningLight rain79°feels 79°
OvernightLight rain72°feels 74°
85 °Light rain

Petersburg, Saturday, 15 August

Light rain. High 85°, low 67°.

Pressure30.09 inHg
Wind14.3 mph SE
Humidity77%
Visibility—
Dew point70°
Sun, 1682° / 67°0Overcast
MorningOvercast75°feels 78°
AfternoonOvercast80°feels 84°
EveningOvercast74°feels 75°
OvernightOvercast68°feels 69°
82 °Overcast

Petersburg, Sunday, 16 August

Overcast. High 82°, low 67°.

Pressure30.03 inHg
Wind13.6 mph NW
Humidity78%
Visibility—
Dew point72°
Mon, 1778° / 61°0Partly cloudy
MorningPartly cloudy65°feels 66°
AfternoonPartly cloudy76°feels 76°
EveningPartly cloudy71°feels 72°
OvernightPartly cloudy65°feels 65°
78 °Partly cloudy

Petersburg, Monday, 17 August

Partly cloudy. High 78°, low 61°.

Pressure30.09 inHg
Wind7.8 mph NE
Humidity62%
Visibility—
Dew point60°
Tue, 1885° / 63°0Overcast
MorningOvercast68°feels 70°
AfternoonOvercast82°feels 85°
EveningOvercast79°feels 79°
OvernightOvercast71°feels 73°
85 °Overcast

Petersburg, Tuesday, 18 August

Overcast. High 85°, low 63°.

Pressure29.85 inHg
Wind13 mph S
Humidity66%
Visibility—
Dew point67°

About this forecast

How reliable is a 10-day forecast?

The first 3–5 days are the most reliable, typically within 2–4°. From day six to ten the models show the trend: the direction of change is right more often than the exact numbers.

What does the time-of-day table show?

Temperature in Petersburg, IL around 8am, 2pm, 8pm and 2am each day — handy for planning a walk, a drive or work outdoors.

How is the best day chosen?

We weigh the daytime high against precipitation: a warm, dry day scores highest.