Post Falls, ID Weather Forecast | 5 Day
Updated: Mon Sep 14th 2026 9:45 AM PDT
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Scattered Showers
Mon 9-14-26
Scattered Showers with a high of 55°F and a low of 40°F. Rainfall expected to have a 65% chance with an estimated 0.03in. Winds will be light at 5mph and gusts of 14.8mph at 9 PM. High humidity with average of 86% is anticipated, the maximum being 94% at 9 PM and 66% being its lowest at 4 PM. Barometric pressure is its highest of 30.1inHg at 9 PM, a lowest point of 30.05inHg at 4 PM with an avg 30.07inHg.
- HI: 55°F
- LO: 40°F
- Rainfall: 65% | est. 0.03in
- Snowfall: 0%
- Wind
4.7 mph - Humidity
86% avg. - UV Index
1.7 - Air QualityGood
- Sunrise
06:23 AM - Sunset
07:02 PM - Moonrise
10:56 AM - Moonset
08:08 PM - Moon Phase
Waxing Crescent
Overcast
Weather Tomorrow, Tue 9-15-26
Overcast with a high of 61°F and a low of 43°F. There might be light rainfall having a 18% chance with an estimated 0in. Winds will be light at 6mph and gusts of 14.8mph at 5 AM. The humidity will be on the higher side, averaging about 70%, the maximum being 94% at 2 AM and 41% being its lowest at 2 PM. Barometric pressure is its highest of 30.09inHg at 12 AM, a lowest point of 29.94inHg at 4 PM with an avg 30.01inHg.
- HI: 61°F
- LO: 43°F
- Rainfall: 18% | est. 0in
- Snowfall: 0%
- Wind
5.8 mph - Humidity
70% avg. - UV Index
4.1 - Air QualityGood
- Sunrise
06:25 AM - Sunset
07:00 PM - Moonrise
12:14 PM - Moonset
08:37 PM - Moon Phase
Waxing Crescent
Sunny
Wed 9-16-26
Sunny with a high of 71°F and a low of 45°F. There's a very small chance of rainfall, only about 5%. Winds will be light at 5mph and gusts of 15mph at 10 PM. The humidity will be on the higher side, averaging about 64%, the maximum being 95% at 6 AM and 33% being its lowest at 4 PM. Barometric pressure is its highest of 30.17inHg at 7 AM, a lowest point of 30.01inHg at 4 PM with an avg 30.07inHg.
- HI: 71°F
- LO: 45°F
- Rainfall: 5%
- Snowfall: 0%
- Wind
4.7 mph - Humidity
64% avg. - UV Index
4.8 - Air QualityGood
- Sunrise
06:26 AM - Sunset
06:58 PM - Moonrise
01:28 PM - Moonset
09:14 PM - Moon Phase
First Quarter
Sunny
Thu 9-17-26
Sunny with a high of 77°F and a low of 52°F. There's a very small chance of rainfall, only about 2%. Winds will be light at 5mph and gusts of 14.3mph at 5 AM. Humidity levels should be comfortable, sitting around 53% on average, the maximum being 80% at 6 AM and 23% being its lowest at 4 PM. Barometric pressure is its highest of 30.08inHg at 7 AM, a lowest point of 29.86inHg at 5 PM with an avg 29.98inHg.
- HI: 77°F
- LO: 52°F
- Rainfall: 2%
- Snowfall: 0%
- Wind
4.9 mph - Humidity
53% avg. - UV Index
7 - Air QualityGood
- Sunrise
06:27 AM - Sunset
06:56 PM - Moonrise
02:33 PM - Moonset
10:01 PM - Moon Phase
First Quarter
Sunny
Fri 9-18-26
Sunny with a high of 73°F and a low of 55°F. There's a very small chance of rainfall, only about 3%. Winds will be light at 4mph and gusts of 14.5mph at 5 AM. Humidity levels should be comfortable, sitting around 46% on average, the maximum being 67% at 6 AM and 24% being its lowest at 2 PM. Barometric pressure is its highest of 30.12inHg at 8 AM, a lowest point of 29.98inHg at 12 AM with an avg 30.04inHg.
- HI: 73°F
- LO: 55°F
- Rainfall: 3%
- Snowfall: 0%
- Wind
3.8 mph - Humidity
46% avg. - UV Index
6 - Air QualityGood
- Sunrise
06:29 AM - Sunset
06:54 PM - Moonrise
03:26 PM - Moonset
10:57 PM - Moon Phase
First Quarter
Partly Cloudy
Sat 9-19-26
Partly Cloudy with a high of 78°F and a low of 57°F. There's a very small chance of rainfall, only about 3%. Winds will be light at 4mph and gusts of 14.1mph at 11 PM. Humidity levels should be comfortable, sitting around 42% on average, the maximum being 63% at 5 AM and 20% being its lowest at 2 PM. Barometric pressure is its highest of 30.09inHg at 12 AM, a lowest point of 29.88inHg at 5 PM with an avg 29.99inHg.
- HI: 78°F
- LO: 57°F
- Rainfall: 3%
- Snowfall: 0%
- Wind
3.8 mph - Humidity
42% avg. - UV Index
7 - Air QualityTBA
- Sunrise
06:30 AM - Sunset
06:52 PM - Moonrise
04:07 PM - Moonset
Does not set today - Moon Phase
First Quarter
This 5-Day weather forecast is relevant for ZIP codes 83854 and 83877, accurately covering areas of Post Falls, ID.
Currently
|
43°F |
30.06 inHg.
Barometer 92%
Humidity SSW 4.7 mph Wind |
| Patchy Rain Nearby | ||
National Outlook
Rain and Storms in the West, Heat Persists in the South - 09-14 to 09-16
Mon Sep 14th 2026, 5:26am PDT
Read
Changing Weather Patterns Bring Rain and Storms: 09-16 to 09-20
Extended Forecast
Mon Sep 14th 2026, 5:30am PDT
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Mon Sep 14th 2026, 5:30am PDT
5 Day Forecast Nearby
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