You can always check 511
https://hb.511.nebraska.gov/#roadReports?timeFrame=TODAY&layers=allReports%2CroadReports%2CwinterDriving%2CotherStates I just checked the 511 interactive map and besides a couple spots of road maintenance, I-80 looks to be open all the way from Wyoming to Iowa. There are some lane closures in Omaha, so expect some delays when you get there. You'll have to check with Iowa if you're going past Omaha, I don't know condition of interstate east of Omaha. Hope this helps.
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