Seattle, WA to Boston, MA: 3,046 miles, 13 states, 628 numbered exits.
At 9 p.m. MDT, temperatures on I-90 run from 45°F near Sparta to 71°F near Vantage, under mostly clear skies on average. The strongest gusts, 37 mph, are near Vivian, SD; sustained wind averages 6 mph. Over the next 24 hours, rain is forecast on about 84 miles of it, the most, 0.04″, near Worcester, MA.
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.
| Where | State | Now | Sky | Next 24 hours |
|---|---|---|---|---|
| Mile 0 · Seattle, WAExit 2A · Vancouver British Columbia / James Street / | WA | 61° | Mostly cloudy | Dry |
| Mile 140 · George, WAExit 151 · Ephrata / Soap Lake | WA | 67° | Partly cloudy | Dry |
| Mile 280 · Spokane Valley, WAExit 293 · Barker Road | WA | 62° | Clear | Dry |
| Mile 420 · Cyr, MTExit 70 · Cyr | MT | 61° | Clear | Dry |
| Mile 560 · Butte, MTExit 124 | MT | 57° | Clear | Dry |
| Mile 700 · Big Timber, MTExit 367 · Big Timber / Harlowton | MT | 64° | Mostly clear | Dry |
| Mile 840 · Crow Agency, MTExit 514 · Garryowen | MT | 61° | Mostly clear | Dry |
| Mile 980 · Gillette, WYExit 102 · Barber Creek Road | WY | 63° | Mostly clear | Dry |
| Mile 1120 · Rapid City, SDExit 44 | SD | 59° | Mostly clear | Dry |
| Mile 1260 · Okaton, SDExit 183 · Okaton | SD | 63° | Mostly clear | Dry |
| Mile 1400 · Mitchell, SDExit 330 | SD | 56° | Clear | Dry |
| Mile 1540 · Worthington, MNExit 57 · Okabena | MN | 52° | Partly cloudy | Dry |
| Mile 1680 · Rochester, MNExit 205 · CR 6 | MN | 48° | Clear | Dry |
| Mile 1820 · Mauston, WIExit 69 · Mauston / Oxford | WI | 46° | Clear | Dry |
| Mile 1960 · Rockford, ILExit 25 · Belvidere / Genoa Road | IL | 48° | Clear | Dry |
| Mile 2100 · South Bend, INExit 72 · Niles / South Bend / Plymouth | IN | 50° | Clear | Dry |
| Mile 2240 · Toledo, OHExit 52 · Toledo Airport | OH | 52° | Clear | Dry |
| Mile 2380 · Mentor, OHExit 193 · Mentor / Kirtland | OH | 53° | Mostly clear | Dry |
| Mile 2520 · Silver Creek, NYExit 58 · Silver Creek / Irving | NY | 53° | Mostly clear | Dry |
| Mile 2660 · Auburn, NYExit 40 · Weedsport / Auburn | NY | 54° | Mostly clear | Dry |
| Mile 2800 · Schenectady, NYExit 26 · Schenectady / Scotia | NY | 59° | Overcast | Dry |
| Mile 2940 · Worcester, MAExit 94 · Worcester / Providence Rhode Island | MA | 63° | Mostly cloudy | rain 0.01″ |
| Mile 2983 · East Boston, MA | MA | 67° | Mostly cloudy | rain 0.03″ |