Weather conditions could be a factor in how many people vote in person on Election Day.
The strongest weather in the US forecast for Tuesday is in Montana, where snowstorms are possible, but that state is not a battleground and is heavily favored to go for Donald Trump.
Key battleground states, including Michigan and Wisconsin, are expected to see some rain.
Here are the Election Day predictions for the seven most contested states.
Arizona
Phoenix and Tucson and many other regions of the state will see temperatures in the 60s to low 70s. Temperatures will be cooler in northern areas. The state will be mostly dry with only light precipitation possible near the Utah border.
Georgia
In Georgia, temperatures are expected to be in the mid-70s to low 80s. Southwestern parts of the state could experience light rain.
Michigan
Temperatures will be above normal in Michigan and southern parts of the state in the 70s. Detroit could see temperatures in the high 70s. A few thunderstorms are possible in Lower Michigan later today. The Upper Peninsula will see temperatures in the 50s and 60s and about 1.3 inches of rain.
Nevada
Temperatures are expected in the 60s across the state. Las Vegas could be approaching the 70s and Reno will be in the mid 50s. At higher altitudes, temperatures are around 20 degrees in the morning and rise in the afternoon.
North Carolina
Temperatures are expected in the mid 70s to 80s, with isolated showers possible in western parts of the state.
Pennsylvania
No rainfall is expected in Pennsylvania. Temperatures will be in the 70s and near 80 degrees in some western regions, including Pittsburgh.
Wisconsin
Much of central and eastern Wisconsin will take place in the 1960s. Temperatures will be closer to 45 or 50 degrees near the Minnesota border. Conditions will be wet all day. The northern half of the state could receive about 1.3 inches of rain, while less is expected in the southern half.
The weather throughout the country
Most of Tuesday’s rainfall is expected in the central US, where scattered showers and thunderstorms are possible. In addition to the possible snowstorms in western Montana, snow is also forecast in parts of Idaho, eastern Washington and Oregon. Calm weather is expected in the Northeast, Mid-Atlantic and Southwest. California’s windy, dry weather creates a fire hazard.
These forecasts come from the National Oceanic and Atmospheric Administration’s Weather Prediction Center.
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