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The System › I-45
45
Interstate 45 · odd · north–south

I-45 weather

Galveston, TX to Dallas, TX: 282 miles, 1 state, 151 numbered exits.

Drive I-45 with the clock runningThe whole system
282Miles
281Drivable in one run
1States
151Exits on the line
3Rest areas
4Miles under an alert now

The states, in order

south to north

The weather on I-45 now

NDFD · Friday, October 2

At 10 p.m. CDT, temperatures on I-45 run from 71°F near Ennis to 82°F near Texas City, under mostly cloudy skies on average. Wind is light, gusting no higher than 14 mph anywhere on the road. Over the next 24 hours, rain is forecast on about 284 miles of it, the most, 1.1″, near Texas City, TX.

Under an NWS alert now: Flood Warning · 4 mi

Read from the National Weather Service’s NDFD forecast grid at 2.5 km, sampled every eight miles along the pavement (run 10/03 01Z). The page is rebuilt every hour.

GalvestonDallas

Along I-45, mile by mile

northbound from Galveston · now and the next 24 hours
WhereStateNowSkyWindNext 24 hours
Mile 0 · Texas City, TXExit 4 · Village of Tiki IslandTX82°Mostly clear9 mph, gusts 14rain 1.1″
Mile 20 · League City, TXExit 19 · DickinsonTX79°Partly cloudy5 mph, gusts 10rain 0.91″
Mile 40 · Houston, TXExit 39 · Park Place Boulevard / Broadway Boulevard / TX81°Partly cloudy5 mphrain 0.31″
Mile 60 · Houston, TXExit 60A · Bush Intercontinental Airport / Sam Houston TX79°Mostly cloudy3 mph, gusts 8rain 0.22″
Mile 80 · The Woodlands, TXExit 81 · Magnolia / HempsteadTX75°Mostly cloudy2 mph, gusts 7rain 0.12″
Mile 100 · Conroe, TXExit 98 · Old Danville Road / Shepard Hill RoadTX74°Partly cloudy3 mph, gusts 9rain 0.15″
Mile 120 · Huntsville, TXExit 118 · Sam Houston State UniversityTX76°Mostly cloudy5 mphrain 0.10″
Mile 140 · Madisonville, TXExit 142 · Bryan / CrockettTX75°Mostly cloudy3 mph, gusts 9rain 0.07″
Mile 160 · Centerville, TXExit 164 · CentervilleTX74°Overcast2 mph, gusts 9rain 0.09″
Mile 180 · Buffalo, TXExit 178 · Buffalo / JewettTX72°Overcast2 mph, gusts 9rain 0.15″
Mile 200 · Fairfield, TXExit 198 · Fairfield / WorthamTX72°Overcast2 mph, gusts 7rain 0.29″
Mile 220 · Corsicana, TXExit 221 · Frontage RoadTX74°Overcast3 mphrain 0.38″
Mile 240 · Ennis, TXExit 242 · Calhoun StreetTX73°Overcast5 mphrain 0.41″
Mile 260 · Dallas, TXExit 262 · Frontage RoadTX71°Overcast5 mphrain 0.45″
Mile 280 · Dallas, TXExit 282TX73°Overcast7 mphrain 0.54″
Mile 281 · Dallas, TXExit 284A · Downtown / Good–Latimer ExpresswayTX73°Overcast7 mphrain 0.54″

The exits

numbered by milepost, in order along the road
All 151 exits on I-45, state by state