Tonight: Mostly clear. Lows around 40 on the north rim to around 55 along the Colorado River. Light winds.

Day: Mostly sunny. Highs around 69 on the north rim to around 90 along the Colorado River. Light winds becoming southwest around 15 mph in the afternoon.

Night: Mostly clear. Lows around 54 on the north rim to around 65 along the Colorado River. South winds around 15 mph until early morning becoming light.

Day: Not as warm. Mostly cloudy. A chance of rain showers and a slight chance of thunderstorms in the morning...Rain showers likely and a chance of thunderstorms in the afternoon. Highs 71 to 81. Light winds becoming south around 15 mph in the afternoon. Chance of precipitation 60 percent.

Night: Rain showers likely and a slight chance of thunderstorms. Lows 54 to 64. Light winds. Chance of precipitation 70 percent.

Day: Cooler. Rain showers and a slight chance of thunderstorms. Highs around 56 on the north rim to around 82 along the Colorado River.

Night: Rain showers likely and a slight chance of thunderstorms. Lows around 52 on the north rim to around 66 along the Colorado River. Highs around 57 on the north rim to around 82 along the Colorado River. Chance of precipitation 70 percent.

Day: Rain showers likely and a slight chance of thunderstorms. Lows around 52 on the north rim to around 66 along the Colorado River. Highs around 57 on the north rim to around 82 along the Colorado River. Chance of precipitation 70 percent.

Night: Mostly cloudy with a chance of rain showers and a slight chance of thunderstorms. Lows around 49 on the north rim to around 61 along the Colorado River. Chance of precipitation 40 percent.

Day: Partly cloudy with a 20 percent chance of thunderstorms. Highs around 59 on the north rim to around 82 along the Colorado River.

Night: Partly cloudy with a 10 percent chance of rain showers. Lows around 47 on the north rim to around 59 along the Colorado River.

Day: Partly cloudy with a 20 percent chance of thunderstorms. Highs around 58 on the north rim to around 83 along the Colorado River.

Night: Partly cloudy with a 10 percent chance of thunderstorms. Lows around 46 on the north rim to around 58 along the Colorado River.

Day: Partly cloudy with a 20 percent chance of rain showers. Highs around 57 on the north rim to around 81 along the Colorado River.