Twin Falls, Idaho Weather
Thunderheads build by noon. Day 90 of spring. Read this microseason across nine climate regions →
Twin Falls weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 17Clear——83°64°—
- ThursdayJun 18Overcast——88°53°+5°
- FridayJun 19Overcast——94°59°+6°
- SaturdayJun 20Light Drizzle——82°63°-12°
- SundayJun 21Overcast——89°55°+7°
- MondayJun 22Clear——92°55°+3°
- TuesdayJun 23Clear——98°63°+6°
AQI 46 (Good), driven by Ozone. AQI up 13 over the last 6 hours (gradual rise). Ozone at AQI 85 now. With UV 11 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 119 around 1 PM.
OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion.
What's driving it
Ozone × UV × Sky
Ozone at AQI 85 now. With UV 11 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 119 around 1 PM.
- Present
- AQI 85
- UV peak
- 10.5 at 1 PM
- Sky at peak
- clear
- Projected peak
- AQI 119
Trends
Seven days of AQI and PM2.5.
Hourly air-quality data from the Copernicus Atmosphere Monitoring Service, charted across the past and next several days. Dashed lines mark the AQI breakpoints at 50 (Good → Moderate) and 100 (Moderate → Unhealthy for Sensitive Groups).
A summer fog for fair, a winter fog for rain.
- Moonrise
- 8:35 AM
- Moonset
- 11:27 PM
- In sign
- ♌︎ Leo
Thunderheads build by noon
Twin Falls at a glance
- Today vs. normal: 10°F above the seasonal normal for this latitude
- Last frost: May 1 (climatological average for this latitude)
- Microseason: Jun 16–20
- Planting window: Stake and prune tomato suckers. Watch for squash vine borers.
16-Day Forecast — Twin Falls
- Wed83°64°0%
- Thu88°53°0%
- Fri94°59°9%
- Sat82°63°9%
- Sun89°55°1%
- Mon92°55°1%
- Tue98°63°1%
- Wed93°66°0%
- Thu92°61°0%
- Fri94°63°1%
- Sat95°65°1%
- Sun100°66°1%
- Mon103°66°3%
- Tue100°69°0%
- Wed102°67°6%
- Thu102°70°10%
Forecast data from Open-Meteo (CC BY 4.0).
Live wind & temperature near Twin Falls
Right now in the garden
Warm-season window is open
As of June 17, the last spring frost has passed for most years. Transplant tomatoes, peppers, eggplants, basil, and cucurbits (cucumbers, squash, melons) now. Direct-sow beans and corn into warm soil.
SPC Convective Outlook
Storm Prediction Center — Twin Falls
SPC has placed Twin Falls in the General Thunderstorms category for severe thunderstorms day after tomorrow.
- TODAYNONENo severe risk
- TOMORROWNONENo severe risk
- DAY 3TSTMGeneral Thunderstorms
Thunderstorms possible. Not severe, but capable of producing lightning and brief heavy rain.
Source: NOAA / NWS Storm Prediction Center categorical convective outlook. Outlooks are re-issued multiple times per day; this page reflects the most recent SPC polygons covering the city’s coordinates.
ZIP codes in Twin Falls
- 83301
- 83303