Boise River Greenbelt landscape. Image by HaSt via Wikimedia Commons, CC BY-SA 4.0.
Today’s Forecast:
🌫
91°F
Current Temperature
Smoke
⚠️
Air Quality Alert
Air Quality Alert issued July 27 at 12:38PM MDT by NWS Boise ID (Expires: July 29, 2026 2:00 pm)
Show Alert Details & Instructions
Description:
* WHAT...Air Quality Advisory because of degraded air quality due to
wildfire smoke.
Air Quality Index is forecast to be Very Unhealthy.
* WHERE...Ada, Adams, Boise, Canyon, Elmore, Gem, Owyhee, Payette,
Valley, and Washington Counties.
* WHEN...UNTIL 3 PM MDT FRIDAY.
* IMPACTS...Health warnings of emergency conditions. The entire
population is more likely to be affected.
Instructions:
Air pollutants can cause breathing difficulties for children, the
elderly, as well as persons with respiratory problems. Those
individuals who are sensitive to increased particulate matter or
smoke are encouraged to avoid prolonged or strenuous outdoor
activity during this advisory. Open burning is prohibited by air
quality rule. It is also recommended that all other individuals
limit prolonged or strenuous activity outdoors.
THIS STATEMENT IS ISSUED BY THE IDAHO DEPARTMENT OF ENVIRONMENTAL
QUALITY, AIR QUALITY GROUP FOR MORE INFORMATION, CONTACT DEQ's
Boise Regional Office at (208) 373-0550
⚠️
Air Quality Alert
Air Quality Alert issued July 27 at 10:32AM MDT by NWS Boise ID (Expires: July 29, 2026 2:00 pm)
Show Alert Details & Instructions
Description:
* WHAT...Air Quality Advisory because of degraded air quality due to
wildfire smoke.
Air Quality Index is forecast to be Unhealthy.
* WHERE...Ada, Adams, Boise, Canyon, Elmore, Gem, Owyhee, Payette,
Valley, and Washington Counties.
* WHEN...UNTIL 2 PM MDT TUESDAY.
* IMPACTS...Everyone may begin to experience health effects; members
of sensitive groups may experience more serious health effects.
Instructions:
Air pollutants can cause breathing difficulties for children, the
elderly, as well as persons with respiratory problems. Those
individuals who are sensitive to increased particulate matter or
smoke are encouraged to avoid prolonged or strenuous outdoor
activity during this advisory. Open burning is prohibited by air
quality rule. It is also recommended that all other individuals
limit prolonged or strenuous activity outdoors.
THIS STATEMENT IS ISSUED BY THE IDAHO DEPARTMENT OF ENVIRONMENTAL
QUALITY, AIR QUALITY GROUP FOR MORE INFORMATION, CONTACT DEQ's
Boise Regional Office at (208) 373-0550
⚠️
Air Quality Alert
Air Quality Alert issued July 27 at 9:10AM MDT by NWS Boise ID (Expires: July 29, 2026 2:00 pm)
Show Alert Details & Instructions
Description:
* WHAT...Air Quality Advisory because of degraded air quality due to
wildfire smoke.
Air Quality Index is forecast to be Unhealthy.
* WHERE...Ada, Adams, Boise, Canyon, Elmore, Gem, Owyhee, Payette,
Valley, and Washington Counties.
* WHEN...UNTIL 2 PM MDT TUESDAY.
* IMPACTS...Everyone may begin to experience health effects; members
of sensitive groups may experience more serious health effects.
Instructions:
Air pollutants can cause breathing difficulties for children, the
elderly, as well as persons with respiratory problems. Those
individuals who are sensitive to increased particulate matter or
smoke are encouraged to avoid prolonged or strenuous outdoor
activity during this advisory. Open burning is prohibited by air
quality rule. It is also recommended that all other individuals
limit prolonged or strenuous activity outdoors.
THIS STATEMENT IS ISSUED BY THE IDAHO DEPARTMENT OF ENVIRONMENTAL
QUALITY, AIR QUALITY GROUP FOR MORE INFORMATION, CONTACT DEQ's
Boise Regional Office at (208) 373-0550
This Afternoon:Smoke. Sunny, with a high near 97. West northwest wind around 9 mph.
Tonight:Smoke. Clear. Low around 62, with temperatures rising to around 67 overnight. North northeast wind 2 to 9 mph.
Tuesday:Smoke. Sunny, with a high near 96. Southwest wind 3 to 9 mph.
Today’s Report:
Not Recommended for biking. High near 95°F. Light wind (9 mph). Hot temperatures (high near 95°F). Smoke or haze in forecast. Temperatures outside comfort limits (95°F).
-
Temp: Unfavorable weather factor
-
Rain: Favorable conditions
-
Wind: Favorable conditions
-
Heat: Marginal weather factor
-
Smoke: Marginal weather factor
-
Thunderstorm: Favorable conditions
Tomorrow's Outlook:
Not Recommended
12/100
Not Recommended for biking. High near 94°F. Light wind (9 mph). Smoke or haze in forecast. Temperatures outside comfort limits (94°F).
Use Caution for paddling. High near 95°F. Light wind (9 mph). Hot temperatures (high near 95°F). Smoke or haze in forecast.
-
Temp: Marginal weather factor
-
Rain: Favorable conditions
-
Wind: Favorable conditions
-
Heat: Marginal weather factor
-
Smoke: Marginal weather factor
-
Thunderstorm: Favorable conditions
Tomorrow's Outlook:
Use Caution
46/100
Use Caution for paddling. High near 94°F. Light wind (9 mph). Smoke or haze in forecast.
Not Recommended for outdoor events / activities. High near 95°F. Light wind (9 mph). Hot temperatures (high near 95°F). Smoke or haze in forecast. Temperatures outside comfort limits (95°F).
-
Temp: Unfavorable weather factor
-
Rain: Favorable conditions
-
Wind: Favorable conditions
-
Heat: Marginal weather factor
-
Smoke: Marginal weather factor
-
Thunderstorm: Favorable conditions
Tomorrow's Outlook:
Not Recommended
12/100
Not Recommended for outdoor events / activities. High near 94°F. Light wind (9 mph). Smoke or haze in forecast. Temperatures outside comfort limits (94°F).
About Boise River Greenbelt
Boise River Greenbelt is an Idaho destination for a major urban cycling and riverfront recreation corridor.
Make the Most of a Boise River Greenbelt Day
Match the route, launch, facility, or turnaround time to wind, precipitation, temperature, smoke, water, snow, road access, and daylight. Keep a shorter or more sheltered backup ready.
Weather Tips for Boise River Greenbelt
- Check official access notices, alerts, road or trail conditions, fire restrictions, and local forecasts before leaving.
- Check river flow, reservoir wind, cold-water conditions, waves, lightning, and verified local ice reports before water plans; no forecast alone proves that ice is safe.
- Carry layers, water, navigation, sun protection, and seasonal traction or flotation appropriate to the activity.
- Allow extra time for remote roads, mountain passes, wildfire smoke, spring runoff, and limited winter daylight.
Nearby Towns and Areas
This page can also be useful when planning outdoor time near:
- Julia Davis Park
- Eagle
- Garden City
- Barber Park
- Lucky Peak
Plan Around the Conditions
Choose the safest version of a Boise River Greenbelt day by matching the activity to current wind, precipitation, temperature, smoke, water or snow conditions, access, and daylight.
7-Day Forecast for Boise River Greenbelt
Boise River Greenbelt Weather by Season
Winter
Winter at Boise River Greenbelt can bring snow, ice, wind, short daylight, and rapidly changing road or trail access.
Spring
Spring brings freeze-thaw mud, snowmelt, high rivers, cold water, and lingering mountain snow. Lower routes usually open well before high passes and backcountry trailheads.
Summer
Summer usually offers the broadest access, but dry heat, thunderstorms, lightning, wildfire smoke, fire restrictions, reservoir wind, and cold mountain water can alter plans.
Fall
Fall brings cooler air, shorter daylight, hunting-season awareness, and early snow at elevation. Confirm seasonal services and allow extra travel time on remote roads.
Key Climate Data Points
- Annual average temperature: around 52–55°F, using the relevant local and elevation context.
- Annual snowfall: commonly 15–25 inches in the valley, with much more in the foothills.
- Warmest months: July and August are normally warmest.
- Coolest months: December and January are typically coolest.
- Wettest season: winter and spring usually provide the greatest mountain precipitation, with local variation.
- Driest season: midsummer is generally driest, despite isolated thunderstorms.
- Best outdoor window: June through October for warm-season access, with midwinter best at established winter destinations.