Petersburg, IN Weather Forecast & Alerts

Current conditions, 5-day forecast, and active NWS weather alerts for Petersburg, IN.

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Current Conditions — Petersburg, IN

LAWRENCEVILLE (KLWV)

Mostly Cloudy

68.0 F
Humidity:37%
Wind Speed: 16.1 mph
Barometer:30.02 in
Dewpoint:41.0 F
Visibility:10.00 mi
Precip:--
Heat Index:NA
Wind Chill:NA
Apr 22 2026, 04:00 AM EDT
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5-Day Forecast — Petersburg, IN

Wednesday

High 78 °F
Partly Sunny
Wednesday
Night
Low 57 °F
Partly Cloudy
Thursday

High 82 °F
Mostly Sunny
Thursday
Night
Low 64 °F
Slight Chance of Showers
Friday

High 77 °F
T-storms
Friday
Night
Low 59 °F
T-storms Likely
Saturday

High 77 °F
Chance of Showers
Saturday
Night
Low 53 °F
Partly Cloudy
Sunday

High 77 °F
Partly Sunny

Detailed Forecast — Petersburg, IN

Wednesday
Partly Sunny. High near 78°F. Wind 6 to 12 mph, with gusts as high as 18 mph.
Wednesday Night
Partly Cloudy. Low around 57°F. Wind 3 to 6 mph, with gusts as high as 8 mph.
Thursday
Mostly Sunny. High near 82°F. Wind 7 to 12 mph, with gusts as high as 18 mph.
Thursday Night
Slight Chance of Showers. Low around 64°F. Wind 7 to 9 mph, with gusts as high as 15 mph.
Friday
Thunderstorms. High near 77°F. Wind 5 to 13 mph, with gusts as high as 20 mph.
Friday Night
Thunderstorms Likely. Low around 59°F. Wind around 2 mph, with gusts as high as 5 mph.
Saturday
Chance of Showers. High near 77°F. Wind 5 to 7 mph, with gusts as high as 10 mph.
Saturday Night
Partly Cloudy. Low around 53°F. Wind around 5 mph, with gusts as high as 9 mph.
Sunday
Partly Sunny. High near 77°F. Wind 5 to 6 mph, with gusts as high as 10 mph.
Sunday Night
Chance of Showers. Low around 59°F. Wind around 8 mph, with gusts as high as 14 mph.
Monday
Thunderstorms Likely. High near 78°F. Wind 10 to 14 mph, with gusts as high as 22 mph.
Monday Night
Chance of Rain. Low around 57°F. Wind around 9 mph, with gusts as high as 15 mph.
Tuesday
Isolated T-storm. High near 73°F. Wind 6 to 12 mph, with gusts as high as 18 mph.
IN Radar
Current Radar • IN
Day 1 Outlook • April 22, 2026

Observation History — Petersburg, IN

Time Wind
(mph)		 Vis
(mi)		 Weather Precip (in) Temperature (F) Relative
Humidity		 Wind
Chill
(F)		 Heat
Index
(F)		 Pressure
Air Dwpt altimeter
(in)		 sea level
(mb)
04:00 AM EDT 16.1 10.00 Mostly Cloudy -- 68.0 41.0 37% NA NA 30.02 1016.6
03:50 AM EDT 16.1 10.00 Cloudy -- 68.0 41.0 37% NA NA 30.02 1016.6
03:35 AM EDT SW 15.0 10.00 Cloudy -- 68.0 41.0 37% NA NA 30.03 1016.9
03:30 AM EDT 15.0 10.00 Cloudy -- 68.0 41.0 37% NA NA 30.03 1016.9
03:20 AM EDT SW 16.1 10.00 Cloudy -- 68.0 41.0 37% NA NA 30.03 1016.9
03:10 AM EDT SW 17.3 10.00 Cloudy -- 68.0 41.0 37% NA NA 30.03 1016.9
03:00 AM EDT SW 17.3 10.00 Cloudy -- 68.0 41.0 37% NA NA 30.03 1016.9
02:45 AM EDT SW 15.0 10.00 Cloudy -- 68.0 41.0 37% NA NA 30.03 1016.9
02:40 AM EDT SW 15.0 10.00 Cloudy -- 68.0 41.0 37% NA NA 30.03 1016.9
02:35 AM EDT SW 17.3 10.00 Cloudy -- 68.0 41.0 37% NA NA 30.03 1016.9
02:30 AM EDT SW 17.3 10.00 Cloudy -- 68.0 41.0 37% NA NA 30.03 1016.9
02:15 AM EDT SW 16.1 10.00 Cloudy -- 68.0 41.0 37% NA NA 30.03 1016.9
02:10 AM EDT SW 17.3 10.00 Cloudy -- 68.0 41.0 37% NA NA 30.03 1016.9
02:05 AM EDT SW 15.0 10.00 Cloudy -- 68.0 41.0 37% NA NA 30.04 1017.3
02:00 AM EDT SW 17.3 10.00 Cloudy -- 68.0 39.2 35% NA NA 30.04 1017.3
01:50 AM EDT SW 15.0 10.00 Cloudy -- 68.0 41.0 37% NA NA 30.04 1017.3
01:40 AM EDT SW 15.0 10.00 Cloudy -- 68.0 39.2 35% NA NA 30.04 1017.3
01:35 AM EDT SW 16.1 10.00 Cloudy -- 68.0 39.2 35% NA NA 30.04 1017.3
01:25 AM EDT SW 15.0 10.00 Cloudy -- 68.0 39.2 35% NA NA 30.04 1017.3
01:20 AM EDT SW 16.1 10.00 Cloudy -- 68.0 39.2 35% NA NA 30.04 1017.3
01:15 AM EDT SW 16.1 10.00 Cloudy -- 68.0 39.2 35% NA NA 30.04 1017.3
01:10 AM EDT SW 15.0 G 20.7 10.00 Cloudy -- 68.0 39.2 35% NA NA 30.04 1017.3
01:05 AM EDT SW 17.3 10.00 Cloudy -- 68.0 39.2 35% NA NA 30.04 1017.3
01:00 AM EDT SW 16.1 10.00 Cloudy -- 66.2 39.2 37% NA NA 30.04 1017.3

Regional Weather Observation

LAWRENCEVILLE (KLWV)

Mostly Cloudy
68.0 F

MOUNT CARMEL (KAJG)

Cloudy
68.0 F

DAVIESS COUNTY (KDCY)

Cloudy
66.2 F

EVANSVILLE (KEVV)

Mostly Cloudy
59.0 F

ROBINSON MUNI (KRSV)

Cloudy
68.0 F

OLNEY-NOBLE (KOLY)

Cloudy
65.3 F
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