Siskiyou County Airport (SIY) 15 Day Weather Forecast, Montague United States
Current weather conditions and 15 day weather forecast for Siskiyou County Airport in Montague, United States including weather daily high/low temperature, warnings, chance of precipitation, pressure, humidity/wind chill, rain, wind speed, cloud, pressure, and UV index.
Current weather conditions at SIY
| 18 March 2026 Wed 2.8 ° C ( 37°F )  Clear |
Feels Like : 2.3 ° C / 36.1°F Humidity : % 78 Pressure : 1022 mb Wind Speed : 3.6 kmph / 2.2 miles from WNW 
Visibility : 16 km Precipitation (rainfall) : 0 mm Cloud (%) : 0 |
15-day weather forecast for Siskiyou County Airport, Montague, United States
| Date | Weather forecast | Low temperature | High temperature | Average Temperature | Humidity | Wind | Chance of rain |
|---|---|---|---|---|---|---|---|
| 18 March 2026 Wed | Sunny |
10.5 ° C | 26.3 ° C | 18 ° C | % 29 | 5.4 km/h | 0% |
| 19 March 2026 Thu | Sunny |
9.2 ° C | 24.6 ° C | 16.7 ° C | % 35 | 4.7 km/h | 0% |
| 20 March 2026 Fri | Sunny |
9.6 ° C | 25.7 ° C | 17.4 ° C | % 38 | 11.2 km/h | 0% |
| 21 March 2026 Sat | Sunny |
3.1 ° C | 14.5 ° C | 9.3 ° C | % 63 | 16.9 km/h | 0% |
| 22 March 2026 Sun | Sunny |
-0.8 ° C | 15.8 ° C | 4.4 ° C | % 62 | 6.8 km/h | 0% |
| 23 March 2026 Mon | Sunny |
3 ° C | 13.7 ° C | 7.7 ° C | % 61 | 9 km/h | 0% |
| 24 March 2026 Tue |  Patchy rain nearby |
1.9 ° C | 11.7 ° C | 6.5 ° C | % 75 | 25.2 km/h | 87% |
| 25 March 2026 Wed |  Patchy heavy snow |
-4 ° C | 4.8 ° C | 0.5 ° C | % 72 | 24.1 km/h | 89% |
| 26 March 2026 Thu | Sunny |
-4.3 ° C | 10.8 ° C | 1.6 ° C | % 69 | 10.8 km/h | 0% |
| 27 March 2026 Fri |  Partly Cloudy |
-2.1 ° C | 11.4 ° C | 3.6 ° C | % 72 | 9.4 km/h | 0% |
| 28 March 2026 Sat | Sunny |
-1.3 ° C | 14 ° C | 5.5 ° C | % 64 | 8.3 km/h | 0% |
| 29 March 2026 Sun | Partly Cloudy |
1.9 ° C | 16.9 ° C | 9.1 ° C | % 51 | 3.2 km/h | 0% |
| 30 March 2026 Mon | Sunny |
5.1 ° C | 21.9 ° C | 11.9 ° C | % 51 | 18.7 km/h | 0% |
| 31 March 2026 Tue | Sunny |
5.2 ° C | 21.8 ° C | 12.4 ° C | % 54 | 11.9 km/h | 0% |
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