Weather

Daily Weather Brief for 30 June 2026

High/low temperatures and weather conditions from official National Weather Service forecast data for CGN coverage areas.

By Jessica Storm · June 30, 2026
Email Reporter
Daily Weather Brief for 30 June 2026
CGN News / Cook Global News Network / CGN Weather Brief / All Rights Reserved

INDIANAPOLIS | CGN News is publishing the Daily Weather Brief from official National Weather Service forecast data for Indianapolis, northwest Indiana, Chicago, St. Louis and Ozark County coverage areas.

Today and tonight

Indianapolis: Sunny; high/low 94/75°F. Today — Sunny; near 94°F; wind 5 to 9 mph SW; Sunny, with a high near 94. Heat index values as high as 103. Southwest wind 5 to 9 mph. Tonight — Clear; near 75°F; wind 3 to 9 mph SW; Clear, with a low around 75. Heat index values as high as 103. Southwest wind 3 to 9 mph.

Crown Point: Mostly Clear; high/low 93/76°F. Overnight — Mostly Clear; near 76°F; wind 10 mph SSW; Mostly clear, with a low around 76. South southwest wind around 10 mph, with gusts as high as 20 mph. Tuesday — Mostly Sunny; near 93°F; wind 10 to 15 mph SW; Mostly sunny. High near 93, with temperatures falling to around 91 in the afternoon. Heat index values as high as 107. Southwest wind 10 to 15 mph, with gusts as high as 30 mph.

Valparaiso: Mostly Clear; high/low 93/76°F. Overnight — Mostly Clear; near 76°F; wind 10 mph SSW; Mostly clear, with a low around 76. South southwest wind around 10 mph, with gusts as high as 20 mph. Tuesday — Mostly Sunny; near 93°F; wind 10 to 15 mph SW; Mostly sunny. High near 93, with temperatures falling to around 91 in the afternoon. Heat index values as high as 106. Southwest wind 10 to 15 mph, with gusts as high as 30 mph.

Rensselaer: Mostly Clear; high/low 93/76°F. Overnight — Mostly Clear; near 76°F; wind 5 mph SSW; Mostly clear, with a low around 76. South southwest wind around 5 mph, with gusts as high as 20 mph. Tuesday — Mostly Sunny; near 93°F; wind 10 to 15 mph SW; Mostly sunny, with a high near 93. Heat index values as high as 105. Southwest wind 10 to 15 mph, with gusts as high as 30 mph.

Kentland: Mostly Clear; high/low 93/76°F. Overnight — Mostly Clear; near 76°F; wind 10 mph SSW; Mostly clear, with a low around 76. South southwest wind around 10 mph, with gusts as high as 20 mph. Tuesday — Sunny; near 93°F; wind 10 to 15 mph SW; Sunny. High near 93, with temperatures falling to around 91 in the afternoon. Heat index values as high as 106. Southwest wind 10 to 15 mph, with gusts as high as 30 mph.

Chicago: Mostly Clear; high/low 95/77°F. Overnight — Mostly Clear; near 77°F; wind 10 mph SSW; Mostly clear, with a low around 77. South southwest wind around 10 mph, with gusts as high as 25 mph. Tuesday — Sunny; near 95°F; wind 10 to 15 mph SW; Sunny, with a high near 95. Heat index values as high as 105. Southwest wind 10 to 15 mph, with gusts as high as 30 mph.

St. Louis: Partly Cloudy; high/low 98/78°F. Overnight — Partly Cloudy; near 78°F; wind 5 mph S; Partly cloudy, with a low around 78. South wind around 5 mph. Tuesday — Sunny; near 98°F; wind 5 to 9 mph SW; Sunny, with a high near 98. Heat index values as high as 109. Southwest wind 5 to 9 mph.

Gainesville: Clear; high/low 95/74°F. Overnight — Clear; near 74°F; wind 3 mph S; Clear. Low around 74, with temperatures rising to around 76 overnight. South wind around 3 mph. Tuesday — Sunny; near 95°F; wind 3 to 7 mph S; Sunny. High near 95, with temperatures falling to around 93 in the afternoon. Heat index values as high as 104. South wind 3 to 7 mph.

Tecumseh: Clear; high/low 94/74°F. Overnight — Clear; near 74°F; wind 5 mph S; Clear. Low around 74, with temperatures rising to around 76 overnight. South wind around 5 mph. Tuesday — Sunny; near 94°F; wind 3 to 7 mph S; Sunny. High near 94, with temperatures falling to around 92 in the afternoon. Heat index values as high as 101. South wind 3 to 7 mph.

Forecasts can change quickly. Readers should check current National Weather Service forecasts, warnings and local emergency information before travel, outdoor work, school activities or public events.

Additional Reporting By: National Weather Service; NOAA

What This Means

Readers should use this brief as a planning overview for high and low temperatures, weather conditions, travel timing and outdoor activity decisions. Immediate safety decisions should be based on current National Weather Service alerts and local emergency information.

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