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Siam, OH Weather Forecast | 5 Day
Updated: Sat Jul 12th 2025 12:00 AM EDT
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Moderate Rain
Sat 7-12
Moderate Rain with a high of 92°F and a low of 71°F. Rainfall expected to have a 75% chance with an estimated 0.34in. Wind will be moderate, blowing around 15mph on average and gusts of 18mph at 5 PM. The humidity will be on the higher side, averaging about 79%, the maximum being 96% at 5 AM and 58% being its lowest at 3 PM. Barometric pressure is its highest of 30.02inHg at 1 AM, a lowest point of 29.87inHg at 7 PM with an avg 29.93inHg.
- HI: 92°F
- LO: 71°F
- Rainfall: 75% | est. 0.34in
- Snowfall: 0%
- Wind
14.1 mph - Humidity
79% avg. - UV Index
2.7 - Air QualityGood
- Sunrise
06:09 AM - Sunset
09:03 PM - Moonrise
10:38 PM - Moonset
07:44 AM - Moon Phase
Waning Gibbous

Moderate Rain
Sun 7-13
Moderate Rain with a high of 86°F and a low of 74°F. It will likey rain, having a 85% chance of a downpour with an estimated 0.36in. Wind will be moderate, blowing around 13mph on average and gusts of 16.4mph at 6 AM. High humidity with average of 83% is anticipated, the maximum being 98% at 5 AM and 61% being its lowest at 5 PM. Barometric pressure is its highest of 30inHg at 10 PM, a lowest point of 29.92inHg at 2 AM with an avg 29.96inHg.
- HI: 86°F
- LO: 74°F
- Rainfall: 85% | est. 0.36in
- Snowfall: 0%
- Wind
12.3 mph - Humidity
83% avg. - UV Index
2.6 - Air QualityGood
- Sunrise
06:10 AM - Sunset
09:03 PM - Moonrise
11:04 PM - Moonset
08:55 AM - Moon Phase
Waning Gibbous

Heavy Rain
Mon 7-14
Heavy Rain with a high of 78°F and a low of 68°F. It will likey rain, having a 89% chance of a downpour with an estimated 4.18in. Winds will be light at 7mph and gusts of 14.6mph at 2 AM. High humidity with average of 93% is anticipated, the maximum being 98% at 5 AM and 77% being its lowest at 9 PM. Barometric pressure is its highest of 30.05inHg at 10 PM, a lowest point of 29.99inHg at 5 PM with an avg 30.01inHg.
- HI: 78°F
- LO: 68°F
- Rainfall: 89% | est. 4.18in
- Snowfall: 0%
- Wind
6.9 mph - Humidity
93% avg. - UV Index
2 - Air QualityModerate
- Sunrise
06:11 AM - Sunset
09:02 PM - Moonrise
11:28 PM - Moonset
10:06 AM - Moon Phase
Waning Gibbous

Sunny
Tue 7-15
Sunny with a high of 85°F and a low of 66°F. Winds will be light at 6mph and gusts of 12.7mph at 9 PM. The humidity will be on the higher side, averaging about 75%, the maximum being 86% at 6 AM and 60% being its lowest at 4 PM. Barometric pressure is its highest of 30.09inHg at 10 AM, a lowest point of 29.98inHg at 5 PM with an avg 30.04inHg.
- HI: 85°F
- LO: 66°F
- Rainfall: 0% | est. 0in
- Snowfall: 0%
- Wind
6 mph - Humidity
75% avg. - UV Index
2.3 - Air QualityModerate
- Sunrise
06:12 AM - Sunset
09:02 PM - Moonrise
11:50 PM - Moonset
11:17 AM - Moon Phase
Waning Gibbous

Patchy Rain Nearby
Wed 7-16
Scattered showers with a high of 84°F and a low of 65°F. Rainfall expected in the surrounding area to have a 74% chance with an estimated 0.01in. Winds will be light at 8mph and gusts of 15mph at 6 AM. The humidity will be on the higher side, averaging about 77%, the maximum being 92% at 11 PM and 59% being its lowest at 2 PM. Barometric pressure is its highest of 29.99inHg at 1 AM, a lowest point of 29.89inHg at 5 PM with an avg 29.94inHg.
- HI: 84°F
- LO: 65°F
- Rainfall: 74% | est. 0.01in
- Snowfall: 0%
- Wind
7.6 mph - Humidity
77% avg. - UV Index
0.1 - Air QualityTBA
- Sunrise
06:12 AM - Sunset
09:01 PM - Moonrise
No moonrise - Moonset
12:28 PM - Moon Phase
Waning Gibbous

Patchy Rain Nearby
Thu 7-17
Scattered showers with a high of 74°F and a low of 68°F. It will likey rain in the surrounding area, having a 80% chance of a downpour with an estimated 0.06in. Wind will be moderate, blowing around 11mph on average and gusts of 14.6mph at 2 AM. High humidity with average of 94% is anticipated, the maximum being 97% at 6 AM and 89% being its lowest at 2 PM. Barometric pressure is its highest of 29.97inHg at 11 PM, a lowest point of 29.9inHg at 5 AM with an avg 29.94inHg.
- HI: 74°F
- LO: 68°F
- Rainfall: 80% | est. 0.06in
- Snowfall: 0%
- Wind
10.3 mph - Humidity
94% avg. - UV Index
5 - Air QualityTBA
- Sunrise
06:13 AM - Sunset
09:00 PM - Moonrise
12:12 AM - Moonset
01:42 PM - Moon Phase
Last Quarter
Currently
![]() |
74°F |
30.02 inHg.
Barometer 85%
Humidity SSW 11.5 mph Wind |
Clear |