Image Source: AZ Family
Weather tomorrow will begin on a relatively quiet note across much of Arizona, but residents should not let the calmer morning forecast create a false sense of security. Another storm system is expected to bring increasing rain chances Saturday evening, followed by a longer period of rainfall on Sunday.
Arizona’s Family meteorologists say Friday is a First Alert Weather Day as showers and thunderstorms move across the region. A flood warning remains in effect for parts of the northeast Valley through 10:45 p.m. Friday, according to the National Weather Service in Phoenix.
Weather Tomorrow: Quiet Morning, Stormy Evening
Saturday morning should provide a short break from the unsettled weather. The first half of the day is expected to be mostly quiet, with some sunshine possible and limited shower activity.
Conditions are likely to change during the afternoon and evening as a second weather system approaches Arizona. Rain chances will rise later Saturday, with scattered showers developing across portions of the state. Some thunderstorms may also be possible, although forecasters are not expecting the same type of severe weather reported during last week’s storms.
Phoenix is expected to reach a high temperature near 78 degrees Saturday. Outdoor plans may still be possible during the morning and early afternoon, but residents should monitor updated forecasts before heading out Saturday night.
Critical Flood Risk Builds Through Sunday
The greatest concern comes Sunday, when rain is expected to become more widespread across Arizona. Forecasters are calling for a long-duration event featuring light to moderate rainfall that could continue on and off for several hours.
Rather than one powerful storm dropping a large amount of rain at once, the primary threat is repeated rainfall over an extended period. That setup can overwhelm washes, drainage systems and low-lying roads, particularly in areas that receive multiple rounds of showers.
High temperatures will fall to approximately 70 degrees Sunday, making for a noticeably cooler and wetter day across the Phoenix area. Shower activity may be scattered Saturday night before becoming more widespread by Sunday morning.
- Saturday morning: Mostly quiet conditions are expected.
- Saturday evening: Rain chances increase as the second storm system arrives.
- Saturday night: Flood concerns begin to expand across much of Arizona.
- Sunday: Widespread, long-duration rain is possible statewide.
- Monday morning: A few lingering showers may remain in eastern Arizona.
Flood Watch Expected Across Most of Arizona
A flood watch is expected to be issued from Saturday night through Monday morning for most of Arizona. Western Arizona is expected to be excluded from the watch area.
The watch means conditions could become favorable for flooding, but it does not guarantee that every location will experience flooding. Residents near washes, creeks and flood-prone roads should remain alert and avoid driving through water-covered roadways.
Even shallow moving water can push vehicles off the road. Drivers should never cross a flooded roadway when the depth or condition of the surface is unclear. Those living in low-lying neighborhoods should also be prepared for temporary ponding and reduced visibility during heavier showers.
Improving Conditions Arrive Sunday Night
Drier air is expected to move into the region Sunday evening, gradually reducing rain chances. A few lingering showers could continue across eastern Arizona Monday morning, but the Phoenix area is expected to see a quieter start to the workweek.
Residents should continue checking official weather alerts as the weekend storm system develops. Rainfall totals and the exact location of heavier showers may change, particularly as forecasters receive updated data.
For now, the best approach is to enjoy the calmer start to Saturday while planning for a wetter evening and a potentially disruptive Sunday. With flood concerns returning across much of the state, Arizona residents should keep emergency supplies handy and allow extra travel time during periods of rain.
Frequently Asked Questions
What will the weather be tomorrow in Phoenix?
Saturday should begin mostly quiet in Phoenix, but rain chances are expected to increase during the evening as a second storm system moves into Arizona.
How warm will Phoenix be Saturday?
Phoenix is expected to reach a high near 78 degrees Saturday before temperatures drop to around 70 degrees Sunday.
When is Arizona’s flood risk highest?
The highest flood risk is expected from Saturday night through Sunday, when rainfall becomes more widespread and continues for several hours.
Will there be severe thunderstorms this weekend?
Forecasters are not expecting storms as severe as those seen last week, but thunderstorms and localized flooding remain possible.
When will conditions improve?
Drier air should move into the region Sunday evening. Phoenix is expected to have a quieter start Monday, although eastern Arizona could see lingering showers.
