Possible Thunderstorms, Heavy Rain Tonight

Image: James Grenz

Alerts (as of 1:00 a.m.)

Small Craft Advisory: In effect through 6 p.m. Tuesday for the Alenuihaha channel and Big Island southeast and leeward waters.

Check our breaking news section for any urgent weather alerts or updates to the weather alerts listed above.

**Click directly on the images below to make them larger. Charts include: Big Island high/low forecasted temperatures, projected winds, chance of cloud cover, projected localized weather conditions, vog/SO2 forecast and expected wave heights.**

Looking Ahead

Trade winds are forecast to pick up in strength Tuesday and Wednesday. Clouds and showers will continue to favor windward and mauka spots, but will affect leeward spots from time to time as well. Showers are expected to become more widespread, with locally heavy downpours and thunderstorms possible, from Tuesday night into Thursday as a disturbance moves over the islands. Fewer showers are expected by next weekend.

Today 

We expect east winds around 15 mph. High temperatures are forecast from 84° to 89°. Partly sunny skies with scattered windward showers today. Mostly sunny morning for the Kona side with scattered showers in the afternoon and hazy skies.

UV index at 12 (“extreme” exposure level)

Tonight 

East winds are forecast around 10 to 15 mph. Mostly cloudy skies with showers likely and a chance of thunderstorms. Low temperatures from 71° to 76°.

Our Big Island Now Weather homepage always includes daily: Sunrise | Sunset | Moonrise | Moonset | Moon Phase | Live Weather Cams | 5-day Forecast | Current Temperature & Conditions

**Click here for your detailed Big Island surf report.**

Image: NOAA

Image: NOAA

Image: NOAA

Image: NOAA

Image: NOAA

Image: NOAA

Image: NOAA

Image: NOAA